Thrips

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Thrips
Temporal range: 299–0  Ma
O
S
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C
P
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Permian – recent
Thysanoptera.jpg
Winged and wingless forms
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
(unranked): Eumetabola
(unranked): Paraneoptera
Order: Thysanoptera
Haliday, 1836
Suborders & Families

Terebrantia

Adiheterothripidae
Aeolothripidae
Fauriellidae
Hemithripidae
Heterothripidae
Jezzinothripidae
Karataothripidae
Melanthripidae
Merothripidae
Scudderothripidae
Stenurothripidae
Thripidae
Triassothripidae
Uzelothripidae

Tubulifera

Phlaeothripidae
Synonyms

Physopoda [1]

Thrips (order Thysanoptera) are minute (mostly 1 mm long or less), slender insects with fringed wings and unique asymmetrical mouthparts. Different thrips species feed mostly on plants by puncturing and sucking up the contents, although a few are predators. Entomologists have described approximately 6,000 species. They fly only weakly and their feathery wings are unsuitable for conventional flight; instead, thrips exploit an unusual mechanism, clap and fling, to create lift using an unsteady circulation pattern with transient vortices near the wings.

Contents

Many thrips species are pests of commercially important crops. A few species serve as vectors for over 20 viruses that cause plant disease, especially the Tospoviruses. Some species of thrips are beneficial as pollinators or as predators of other insects or mites. In the right conditions, such as in greenhouses, many species can exponentially increase in population size and form large swarms because of a lack of natural predators coupled with their ability to reproduce asexually, making them an irritation to humans. In addition, thrips may invade houses and infest objects such as furniture, bedding and computer monitors - in the latter case by forcing their way in between the LCD and its glass covering. [2] Their identification to species by standard morphological characters is often challenging.

Etymology

The first recorded mention of thrips is from the 17th century and a sketch was made by Philippo Bonanni, a Catholic priest, in 1691. Swedish entomologist Baron Charles De Geer described two species in the genus Physapus in 1744 and Linnaeus in 1746 added a third species and called this group of insects as Thrips. In 1836 the Irish entomologist Alexander Henry Haliday described 41 species in 11 genera and proposed the order name of Thysanoptera. The first monograph on the group was published in 1895 by Heinrich Uzel who is considered the father of Thysanoptera studies. [3] [1]

The generic and English name thrips is a direct transliteration of the ancient Greek θρίψ , thrips, meaning "woodworm". [4] Like some other animal names such as sheep, deer, and moose, in English the word thrips is both the singular and plural forms, so there may be many thrips or a single thrips. Other common names for thrips include thunderflies, thunderbugs, storm flies, thunderblights, storm bugs, corn fleas, corn flies, corn lice, freckle bugs, harvest bugs, and physopods. [5] [6] [7] The older group name "physopoda" is with reference to the bladder like tips to the tarsi of the legs. The name of the order Thysanoptera is constructed from the ancient Greek words θύσανος , thysanos, "tassel or fringe", and πτερόν , pteron, "wing", for the insects' fringed wings. [8] [9] [10]

Morphology

Typical Tubulifera thrips: the feathery wings are unsuitable for the leading edge vortex flight of most other insects, but support clap and fling flight. Thrips physapus.jpg
Typical Tubulifera thrips: the feathery wings are unsuitable for the leading edge vortex flight of most other insects, but support clap and fling flight.
Leaf suffering from thrips Leaf suffering from thrips.jpg
Leaf suffering from thrips

Thrips are small hemimetabolic insects with a distinctive cigar-shaped body plan. They are elongated with transversely constricted bodies. They range in size from 0.5 to 14 mm (0.02 to 0.55 in) in length for the larger predatory thrips, but most thrips are about 1 mm in length. Flight-capable thrips have two similar, strap-like pairs of wings with a fringe of bristles. The wings are folded back over the body at rest. Their legs usually end in two tarsal segments with a bladder-like structure known as an "arolium" at the pretarsus. This structure can be everted by means of hemolymph pressure, enabling the insect to walk on vertical surfaces. [11] [12] They have compound eyes consisting of a small number of ommatidia and three ocelli or simple eyes on the head. [13]

Asymmetric mouthparts of Heliothrips Heliothrips asymmetric mouthparts.jpg
Asymmetric mouthparts of Heliothrips

Thrips have asymmetrical mouthparts unique to the group. Unlike the Hemiptera (true bugs), the right mandible of thrips is reduced and vestigial – and in some species completely absent. [14] The left mandible is used briefly to cut into the food plant; saliva is injected and the maxillary stylets, which form a tube, are then inserted and the semi-digested food pumped from ruptured cells. This process leaves cells destroyed or collapsed, and a distinctive silvery or bronze scarring on the surfaces of the stems or leaves where the thrips have fed. [15]

Thysanoptera is divided into two suborders, Terebrantia and Tubulifera; these can be distinguished by morphological, behavioral, and developmental characteristics. Tubulifera consists of a single family, Phlaeothripidae; members can be identified by their characteristic tube-shaped apical abdominal segment, egg-laying atop the surface of leaves, and three "pupal" stages. In the Phlaeothripidae, the males are often larger than females and a range of sizes may be found within a population. The largest recorded phlaeothripid species is about 14mm long. Females of the eight families of the Terebrantia all possess the eponymous saw-like (see terebra) ovipositor on the anteapical abdominal segment, lay eggs singly within plant tissue, and have two "pupal" stages. In most Terebrantia, the males are smaller than females. The family Uzelothripidae has a single species and it is unique in having a whip-like terminal antennal segment. [13]

Evolution

The earliest fossils of thrips date back to the Permian (Permothrips longipennis). By the Early Cretaceous, true thrips became much more abundant. [16] The extant family Merothripidae most resembles these ancestral Thysanoptera, and is probably basal to the order. [17] There are currently over six thousand species of thrips recognized, grouped into 777 extant and sixty fossil genera. [18]

Phylogeny

Thrips are generally considered to be the sister group to Hemiptera (bugs). [19]

The phylogeny of thrips families has been little studied. A preliminary analysis in 2013 of 37 species using 3 genes, as well as a phylogeny based on ribosomal DNA and three proteins in 2012, supports the monophyly of the two suborders, Tubulifera and Terebrantia. In Terebrantia, Melanothripidae may be sister to all other families, but other relationships remain unclear. In Tubulifera, the Phlaeothripidae and its subfamily Idolothripinae are monophyletic. The two largest thrips subfamilies, Phlaeothripinae and Thripinae, are paraphyletic and need further work to determine their structure. The internal relationships from these analyses are shown in the cladogram. [20] [21]

Thysanoptera
Terebrantia

Melanothripidae

other Terebrantia

Tubulifera

Phlaeothripidae

Taxonomy

The following families are currently (2013) recognized: [21] [22] [13]

  • Phlaeothripidae Uzel, 1895 (447 genera in two subfamilies, fungal hyphae and spore feeders)

The identification of thrips to species is challenging as types are maintained as slide preparations of varying quality over time. There is also considerable variability leading to many species being misidentified. Molecular sequence based approaches have increasingly been applied to their identification. [23] [24]

Biology

The Australian rainforest shrub Myrsine (Rapanea) howittiana is pollinated by Thrips setipennis. Myrsine howittiana.jpg
The Australian rainforest shrub Myrsine (Rapanea) howittiana is pollinated by Thrips setipennis .

Feeding

Thrips are believed to have descended from a fungus-feeding ancestor during the Mesozoic, [16] and many groups still feed upon and inadvertently redistribute fungal spores. These live among leaf litter or on dead wood and are important members of the ecosystem, their diet often being supplemented with pollen. Other species are primitively eusocial and form plant galls and still others are predatory on mites and other thrips. [9] Two species of Aulacothrips, A. tenuis and A. levinotus, have been found to be ectoparasites on aetalionid and membracid plant-hoppers in Brazil. [25]

Mirothrips arbiter has been found in paper wasp nests in Brazil. The eggs of the hosts including Mischocyttarus atramentarius, Mischocyttarus cassununga and Polistes versicolor are eaten by the thrips. [26] Thrips are also predators for various stages of the life of codling moths. [27]

Most research has focused on thrips species that feed on economically significant crops. Some species are predatory, but most of them feed on pollen and the chloroplasts harvested from the outer layer of plant epidermal and mesophyll cells. They prefer tender parts of the plant, such as buds, flowers and new leaves. [28] [29] Besides feeding on plant tissues, the common blossom thrips feeds on pollen grains and on the eggs of mites. When the larva supplements its diet in this way, its development time and mortality is reduced, and adult females that consume mite eggs increase their fecundity and longevity. [30]

Pollination

Coffee tree leaves rolled up by Hoplandrothrips (Phlaeothripidae) damage Leaf curling in coffee caused by hoplandothrips.JPG
Coffee tree leaves rolled up by Hoplandrothrips (Phlaeothripidae) damage

Some flower-feeding thrips pollinate the flowers they are feeding on, and some authors suspect that they may have been among the first insects to evolve a pollinating relationship with their host plants. [31] Scirtothrips dorsalis carries pollen of commercially important chili peppers. [32] [33] [34] Darwin found that thrips could not be kept out by any netting when he conducted experiments by keeping away larger pollinators. [35] Thrips setipennis is the sole pollinator of Wilkiea huegeliana , a small, unisexual annually flowering tree or shrub in the rainforests of eastern Australia. T. setipennis serves as an obligate pollinator for other Australian rainforest plant species, including Myrsine howittiana and M. variabilis. [36] The genus Cycadothrips is a specialist pollinator of cycads, the flowers of which are adapted for pollination by small insects. [37] Thrips are likewise the primary pollinators of heathers in the family Ericaceae , [38] and play a significant role in the pollination of pointleaf manzanita. Electron microscopy has shown thrips carrying pollen grains adhering to their backs, and their fringed wings are perfectly capable of allowing them to fly from plant to plant. [37]

Damage to plants

Thrips can cause damage during feeding. [39] This impact may fall across a broad selection of prey items, as there is considerable breadth in host affinity across the order, and even within a species, varying degrees of fidelity to a host. [28] [40] Family Thripidae in particular is notorious for members with broad host ranges, and the majority of pest thrips come from this family. [41] [42] For example, Thrips tabaci damages crops of onions, potatoes, tobacco, and cotton. [29] [43]

Eusocial colonies of Kladothrips cause and live in galls on Acacia trees. Australian insects (Plate XXXVII) (7268276524).jpg
Eusocial colonies of Kladothrips cause and live in galls on Acacia trees.

Some species of thrips create galls, almost always in leaf tissue. These may occur as curls, rolls or folds, or as alterations to the expansion of tissues causing distortion to leaf blades. More complex examples cause rosettes, pouches and horns. Most of these species occur in the tropics and sub-tropics, and the structures of the galls are diagnostic of the species involved. [44] A radiation of thrips species seems to have taken place on Acacia trees in Australia; some of these species cause galls in the petioles, sometimes fixing two leaf stalks together, while other species live in every available crevice in the bark. In Casuarina in the same country, some species have invaded stems, creating long-lasting woody galls. [45]

Social behaviour

While poorly documented, chemical communication is believed to be important to the group. [46] Anal secretions are produced in the hindgut, [47] and released along the posterior setae as predator deterrents [47] [48] In Australia, aggregations of male common blossom thrips have been observed on the petals of Hibiscus rosa-sinensis and Gossypium hirsutum ; females were attracted to these groups so it seems likely that the males were producing pheromones. [49]

In the phlaeothripids that feed on fungi, males compete to protect and mate with females, and then defend the egg-mass. Males fight by flicking their rivals away with their abdomen, and may kill with their foretarsal teeth. Small males may sneak in to mate while the larger males are busy fighting. In the Merothripidae and in the Aeolothripidae, males are again polymorphic with large and small forms, and probably also compete for mates, so the strategy may well be ancestral among the Thysanoptera. [13]

Many thrips form galls on plants when feeding or laying their eggs. Some of the gall-forming Phlaeothripidae, such as genera Kladothrips [50] and Oncothrips , [51] form eusocial groups similar to ant colonies, with reproductive queens and nonreproductive soldier castes. [52] [53] [54]

Flight

Most insects create lift by the stiff-winged mechanism of insect flight with steady state aerodynamics; this creates a leading edge vortex continuously as the wing moves. The feathery wings of thrips, however, generate lift by clap and fling, a mechanism discovered by the Danish zoologist Torkel Weis-Fogh in 1973. In the clap part of the cycle, the wings approach each other over the insect's back, creating a circulation of air which sets up vortices and generates useful forces on the wings. The leading edges of the wings touch, and the wings rotate around their leading edges, bringing them together in the "clap". The wings close, expelling air from between them, giving more useful thrust. The wings rotate around their trailing edges to begin the "fling", creating useful forces. The leading edges move apart, making air rush in between them and setting up new vortices, generating more force on the wings. The trailing edge vortices however cancel each other out with opposing flows. Weis-Fogh suggested that this cancellation might help the circulation of air to grow more rapidly, by shutting down the Wagner effect which would otherwise counteract the growth of the circulation. [55] [56] [57] [58]

Apart from active flight, thrips, even wingless ones, can also be picked up by winds and transferred long distances. During warm and humid weather, adults may climb to the tips of plants to leap and catch air current. Wind-aided dispersal of species has been recorded over 1600 km of sea between Australia and South Island of New Zealand. [13]

A hazard of flight for very small insects such as thrips is the possibility of being trapped by water. Thrips have non-wetting bodies and have the ability to ascend a meniscus by arching their bodies and working their way head-first and upwards along the water surface in order to escape. [59]

Lifecycle

Thrips nymph.
Scale bar is 0.5 mm Thrips nymph.jpg
Thrips nymph.
Scale bar is 0.5 mm

Thrips lay extremely small eggs, about 0.2 mm long. Females of the suborder Terebrantia cut slits in plant tissue with their ovipositor, and insert their eggs, one per slit. Females of the suborder Tubulifera lay their eggs singly or in small groups on the outside surfaces of plants. [60]

Thrips are hemimetabolous, metamorphosing gradually to the adult form. The first two instars, called larvae or nymphs, are like small wingless adults (often confused with springtails) without genitalia; these feed on plant tissue. In the Terebrantia, the third and fourth instars, and in the Tubulifera also a fifth instar, are non-feeding resting stages similar to pupae: in these stages, the body's organs are reshaped, and wing-buds and genitalia are formed. [60] The adult stage can be reached in around 8–15 days; adults can live for around 45 days. [61] Adults have both winged and wingless forms; in the grass thrips Anaphothrips obscurus, for example, the winged form makes up 90% of the population in spring (in temperate zones), while the wingless form makes up 98% of the population late in the summer. [62] Thrips can survive the winter as adults or through egg or pupal diapause. [13]

Thrips are haplodiploid with haploid males (from unfertilised eggs, as in Hymenoptera) and diploid females capable of parthenogenesis (reproducing without fertilisation), many species using arrhenotoky, a few using thelytoky. [63] The sex-determining bacterial endosymbiont Wolbachia is a factor that affects the reproductive mode. [40] [63] [64] Several normally bisexual species have become established in the United States with only females present. [63] [65]

Human impact

A tomato infected with the thrips-borne Tospovirus, tomato spotted wilt virus Tomato with Tomato Spotted Wilt Virus.jpg
A tomato infected with the thrips-borne Tospovirus, tomato spotted wilt virus

As pests

Ponticulothrips diospyrosi on finger Ponticulothrips diospyrosi.jpg
Ponticulothrips diospyrosi on finger

Many thrips are pests of commercial crops due to the damage caused by feeding on developing flowers or vegetables, causing discoloration, deformities, and reduced marketability of the crop. Some thrips serve as vectors for plant diseases, such as tospoviruses. [66] Over 20 plant-infecting viruses are known to be transmitted by thrips, but perversely, less than a dozen of the described species are known to vector tospoviruses. [67] These enveloped viruses are considered among some of the most damaging of emerging plant pathogens around the world, with those vector species having an outsized impact on human agriculture. Virus members include the tomato spotted wilt virus and the impatiens necrotic spot viruses. The western flower thrips, Frankliniella occidentalis , has spread until it now has a worldwide distribution, and is the primary vector of plant diseases caused by tospoviruses. [68] Their small size and predisposition towards enclosed places makes them difficult to detect by phytosanitary inspection, while their eggs, laid inside plant tissue, are well-protected from pesticide sprays. [61] When coupled with the increasing globalization of trade and the growth of greenhouse agriculture, thrips, unsurprisingly, are among the fastest growing group of invasive species in the world. Examples include F. occidentalis, Thrips simplex , and Thrips palmi . [69]

Flower-feeding thrips are routinely attracted to bright floral colors (including white, blue, and especially yellow), and will land and attempt to feed. It is not uncommon for some species (e.g., Frankliniella tritici and Limothrips cerealium ) to "bite" humans under such circumstances. Although no species feed on blood and no known animal disease is transmitted by thrips, some skin irritation has been described. [70]

Management

A robberfly preying on thrips Asilidae thrips.jpg
A robberfly preying on thrips

Thrips develop resistance to insecticides easily and there is constant research on how to control them. This makes thrips ideal as models for testing the effectiveness of new pesticides and methods. [71]

Due to their small sizes and high rates of reproduction, thrips are difficult to control using classical biological control. Suitable predators must be small and slender enough to penetrate the crevices where thrips hide while feeding, and they must also prey extensively on eggs and larvae to be effective. Only two families of parasitoid Hymenoptera parasitize eggs and larvae, the Eulophidae and the Trichogrammatidae. Other biocontrol agents of adults and larvae include anthocorid bugs of genus Orius , and phytoseiid mites. Biological insecticides such as the fungi Beauveria bassiana and Verticillium lecanii can kill thrips at all life-cycle stages. [72] Insecticidal soap spray is effective against thrips. It is commercially available or can be made of certain types of household soap. Scientists in Japan report that significant reductions in larva and adult melon thrips occur when plants are illuminated with red light. [73]

Related Research Articles

Hoverfly family of insects

Hoverflies, also called flower flies or syrphid flies, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the larvae (maggots) eat a wide range of foods. In some species, the larvae are saprotrophs, eating decaying plant and animal matter in the soil or in ponds and streams. In other species, the larvae are insectivores and prey on aphids, thrips, and other plant-sucking insects.

Cecidomyiidae Family of flies

Cecidomyiidae is a family of flies known as gall midges or gall gnats. As the name implies, the larvae of most gall midges feed within plant tissue, creating abnormal plant growths called galls. Cecidomyiidae are very fragile small insects usually only 2–3 mm (0.079–0.118 in) in length; many are less than 1 mm (0.039 in) long. They are characterised by hairy wings, unusual in the order Diptera, and have long antennae. Cecidomyiids are also known for the strange phenomenon of paedogenesis in which the larval stage reproduces without maturing first. In some species, the daughter larvae consume the mother, while in others, reproduction occurs later on in the egg or pupa.

Phlaeothripidae family of insects

Phlaeothripidae is a family of thrips with hundreds of genera. They are the only family of the suborder Tubulifera, and are themselves ordered into two subfamilies, the Idolothripinae with 80 genera, and the Phlaeothripinae with almost 400. Some 3,400 species are recognised in this family, and many are fungivores living in the tropics.

Thripidae family of insects

The Thripidae are the most speciose family of thrips, with over 290 genera representing just over two thousand species. They can be distinguished from other thrips by a saw-like ovipositor curving downwards, narrow wings with two veins, and antennae of six to ten antennomeres with stiletto-like forked sense cones on antennal segments III and IV.

<i>Impatiens necrotic spot orthotospovirus</i> species of virus

Impatiens necrotic spot orthotospovirus(INSV) is a plant pathogenic virus of the order Bunyavirales. It was originally believed to be another strain of Tomato spotted wilt virus but genetic investigations revealed them to be separate viruses. It is a single stranded RNA It has a tripartite genome and is largely spread by the insect vector of the western flower thrips. The virus infects more than 648 species of plant including important horticultural and agricultural species such as fuchsia, tomato, orchids, and lettuce. As the name implies, the main symptom on plants is necrotic spots that appear on the leaves. The INSV virus infects by injecting the RNA the virus contains into the cell which then starts using the cell resources to transcribe what the virus RNA states. Viral infection can often result in the death of the plant. The disease is mainly controlled by the elimination of the western flower thrip vector and by destroying any infected plant material.

Western flower thrips species of insect

The western flower thrips [Frankliniella occidentalis (Pergande)] is an invasive pest insect in agriculture. This species of thrips is native to the Southwestern United States but has spread to other continents, including Europe, Australia, and South America via transport of infested plant material. It has been documented to feed on over 500 different species of host plants, including a large number of fruit, vegetable, and ornamental crops. The adult male is about 1 mm long; the female is slightly larger, about 1.4 mm in length. Most western flower thrips are female and reproduce by arrhenotokous parthenogenesis; i.e. females can produce males from unfertilized eggs, but females arise only from fertilized eggs. Males are rare, and are always pale yellow, while females vary in color, often by season, from red to yellow to dark brown. Each adult is elongated and thin, with two pairs of long wings. The eggs are oval or kidney-shaped, white, and about 0.2 mm long. The nymph is yellowish in color with red eyes.

<i>Orthotospovirus</i> Genus of viruses

Orthotospovirus is a genus of negative-strand RNA viruses, in the family Tospoviridae of the order Bunyavirales, which infects plants. Tospoviruses take their name from the type species tomato spotted wilt orthotospovirus (TSWV) which was discovered in Australia in 1919. The type species remained the only member of the family until the early 1990s when genetic characterisation of plant viruses became more common. There are now at least twenty species in the genus with more being discovered on a regular basis. Member viruses infect over eight hundred plant species from 82 different families.

<i>Scirtothrips dorsalis</i> species of insect

The chilli thrips or yellow tea thrips, Scirtothrips dorsalis Hood, is an extremely successful invasive species of pest-thrips which has expanded rapidly from Asia over the last twenty years, and is gradually achieving a global distribution. It has most recently been reported in St. Vincent (2004) Florida (2005), Texas (2006), and Puerto Rico (2007). It is a pest of economic significance with a broad host range, with prominent pest reports on crops including pepper, mango, citrus, strawberry, grapes, cotton, tea, peanuts, blueberry, and roses. Chilli thrips appear to feed preferentially on new growth, and infested plants usually develop characteristic wrinkled leaves, with distinctive brown scarring along the veins of leaves, the buds of flowers, and the calyx of fruit. Feeding damage can reduce the sale value of crops produced, and in sufficient numbers, kill plants already aggravated by environmental stress. This thrips has also been implicated in the transmission of three tospoviruses, but there is some controversy over its efficiency as a vector.

Paraneoptera superorder of insects

Paraneoptera is a monophyletic superorder of insects which includes four orders, the bark lice, true lice, thrips, and hemipterans, the true bugs. The mouthparts of the Paraneoptera reflect diverse feeding habits. Basal groups are microbial surface feeders, whereas more advanced groups feed on plant or animal fluids.

Thripinae subfamily of insects

The Thripinae are a subfamily of thrips, insects of the order Thysanoptera. The Thripinae belong to the common thrips family Thripidae and include around 1,400 species in 150 genera. A 2012 molecular phylogeny found that the Thripinae was paraphyletic; further work will be needed to clarify the relationships within the group.

<i>Frankliniella tritici</i> species of insect

Frankliniella tritici, the eastern flower thrips, is a species of thrips in the genus Frankliniella. F. tritici inhabits blossom, such as dandelion flowers. They can directly damage plants, grasses and trees, in addition to commercial crops, and as a vector for tospoviruses, a form of plant virus, it particularly affects small fruit production in the United States, including strawberries, grapes, blueberries and blackberries. It can also affect alfalfa, oats, beans and asparagus crops. The species features strap-like wings edged with long hairs, a design which increases aerodynamic efficiency in very small arthropods; the reduced drag means the insect uses less energy. They extract nutrients directly from individual plant cells, and may also digest cells of fungi in the leaf litter.

<i>Orius insidiosus</i> species of insect

Orius insidiosus, common name the insidious flower bug, is a species of minute pirate bug, a predatory insect in the order Hemiptera. They are considered beneficial, as they feed on small pest arthropods and their eggs. They are mass-reared for use in the biological control of thrips.

<i>Thrips</i> (genus) genus of insects

Thrips is a genus of thrips.

Dicyphus hesperus is a species of true bug in the family Miridae. It is a generalist predator of other insects and also feeds on plant tissues. It is native to North America and has been used there in biological control of agricultural pests, especially whitefly on tomatoes.

<i>Thrips tabaci</i> species of insect

Thrips tabaci is a species of very small insect in the genus Thrips in the order Thysanoptera. It is commonly known as the onion thrips, the potato thrips, the tobacco thrips or the cotton seedling thrips. It is an agricultural pest that can damage crops of onions and other plants, and it can additionally act as a vector for plant viruses.

The common blossom thrips is a species of thrips in the family Thripidae. It is found in many parts of the world and is an important pest insect in agriculture.

Terebrantia

Terebrantia is a suborder of thrips. Order Thysanoptera includes 5,500 species classified into two suborders distinguished by the ovipositor. Terebrantia have a well-developed conical ovipositor, while the Tubulifera do not. It contains 13 families, five of which are only known from fossils. Members of Terebrantia mainly feed on plants. All have two larval instars followed by two pupal instars.

Ctenothrips is a genus of thrips in the family Thripidae. There are about 10 described species in Ctenothrips.

Heliothrips haemorrhoidalis is a species of thrips in the family Thripidae. It is most commonly known as the greenhouse thrips, the glasshouse thrip or black tea thrips. This species of thrips was first described in 1833 by Bouché in Berlin, Germany. H. haemorrhoidalis also has many synonyms depending on where they were described from such as: H. adonidum Haliday, H. semiaureus Girault, H. abdominalis Reuter, H. angustior Priesner, H. ceylonicus Schultz, Dinurothrips rufiventris Girault. In New Zealand, H. haemorrhoidalis is one of the four species belonging to the subfamily Panchaetothripinae.

Panchaetothripinae subfamily of insects

Panchaetothripinae is a subfamily of thrips in the family Thripidae. There are about 11 genera and more than 50 described species in Panchaetothripinae.

References

  1. 1 2 Fedor, Peter J.; Doricova, Martina; Prokop, Pavol; Mound, Laurence A. (2010). "Heinrich Uzel, the father of Thysanoptera studies" (PDF). Zootaxa. 2645: 55–63. doi:10.11646/zootaxa.2645.1.3.
  2. "What are Thunderbugs?". Naked Scientists .
  3. Uzel, Jindrich (1895). Monografie řádu Thysanoptera. Hradec Králové.
  4. θρίψ . Liddell, Henry George ; Scott, Robert ; A Greek–English Lexicon at the Perseus Project.
  5. Kobro, Sverre (2011). "Checklist of Nordic Thysanoptera" (PDF). Norwegian Journal of Entomology. 58: 21–26. Retrieved October 25, 2014.
  6. Kirk, W.D.J. (1996). Thrips: Naturalists' Handbooks 25. The Richmond Publishing Company.
  7. Marren, Peter; Mabey, Richard (2010). Bugs Britannica. Chatto & Windus. p. 141. ISBN   978-0-7011-8180-2.
  8. "Thysanoptera". Merriam-Webster. Retrieved 15 February 2017.
  9. 1 2 Tipping, C. (2008). Capinera, John L. (ed.). Encyclopedia of Entomology. Springer Science & Business Media. pp. 3769–3771. ISBN   978-1-4020-6242-1.
  10. θύσανος, πτερόν  in Liddell and Scott.
  11. Gillott, Cedric (2005). Entomology . Springer. p.  234. ISBN   978-0-306-44967-3.
  12. Heming, B. S. (1971). "Functional morphology of the thysanopteran pretarsus". Canadian Journal of Zoology. 49 (1): 91–108. doi:10.1139/z71-014. PMID   5543183.
  13. 1 2 3 4 5 6 Mound, L.A. (2003). "Thysanoptera" . In Resh, Vincent H.; Cardé, Ring T. (eds.). Encyclopedia of Insects. Academic Press. pp.  999–1003. ISBN   978-0-12-586990-4.
  14. Childers, C.C.; Achor, D.S. (1989). "Structure of the mouthparts of Frankliniella bispinosa (Morgan) (Thysanoptera: Thripidae).". In Parker, B.L.; Skinner, M.; Lewis, T. (eds.). Towards Understanding Thysanoptera. Proceedings of the International Conference on Thrips. Radnor, PA: USDA Technical Report NE-147.
  15. Chisholm, I. F.; Lewis, T. (2009). "A new look at thrips (Thysanoptera) mouthparts, their action and effects of feeding on plant tissue". Bulletin of Entomological Research. 74 (4): 663–675. doi:10.1017/S0007485300014048.
  16. 1 2 Grimaldi, D.; Shmakov, A.; Fraser, N. (2004). "Mesozoic Thrips and Early Evolution of the Order Thysanoptera (Insecta)". Journal of Paleontology. 78 (5): 941–952. doi:10.1666/0022-3360(2004)078<0941:mtaeeo>2.0.co;2. JSTOR   4094919.
  17. Mound, L.A. (1997). "Thrips as Crop Pests". In Lewis, T. (ed.). Biological diversity. CAB International. pp. 197–215.
  18. "Thrips Wiki" . Retrieved 19 February 2017.
  19. Li, Hu; et al. (2015). "Higher-level phylogeny of paraneopteran insects inferred from mitochondrial genome sequences". Scientific Reports. 5: 8527. Bibcode:2015NatSR...5E8527L. doi:10.1038/srep08527. PMC   4336943 . PMID   25704094.
  20. Terry, Mark; Whiting, Michael (2013). "Evolution of Thrips (Thysanoptera) Phylogenetic Patterns and Mitochondrial Genome Evolution". Journal of Undergraduate Research.
  21. 1 2 Buckman, Rebecca S.; Mound, Laurence A.; Whiting, Michael F. (2012). "Phylogeny of thrips (Insecta: Thysanoptera) based on five molecular loci". Systematic Entomology. 38 (1): 123–133. doi:10.1111/j.1365-3113.2012.00650.x.
  22. Mound, L.A. (2011). "Order Thysanoptera Haliday, 1836 in Zhang, Z.-Q. (Ed.) Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness" (PDF). Zootaxa. 3148: 201–202. doi:10.11646/zootaxa.3148.1.38.
  23. Mound, Laurence A. (2013). "Homologies and Host-Plant Specificity: Recurrent Problems in the Study of Thrips". Florida Entomologist. 96 (2): 318–322. doi: 10.1653/024.096.0250 .
  24. Rugman-Jones, Paul F.; Hoddle, Mark S.; Mound, Laurence A.; Stouthamer, Richard (2006). "Molecular Identification Key for Pest Species of Scirtothrips (Thysanoptera: Thripidae)". J. Econ. Entomol. 99 (5): 1813–1819. doi:10.1093/jee/99.5.1813. PMID   17066817.
  25. Cavalleri, Adriano; Kaminski, Lucas A. (2014). "Two new ectoparasitic species of Aulacothrips Hood, 1952 (Thysanoptera: Heterothripidae) associated with ant-tended treehoppers (Hemiptera)". Systematic Parasitology. 89 (3): 271–8. doi:10.1007/s11230-014-9526-z. PMID   25274260. S2CID   403014.
  26. Cavalleri, Adriano; De Souza, André R.; Prezoto, Fábio; Mound, Laurence A. (2013). "Egg predation within the nests of social wasps: a new genus and species of Phlaeothripidae, and evolutionary consequences of Thysanoptera invasive behaviour". Biological Journal of the Linnean Society. 109 (2): 332–341. doi: 10.1111/bij.12057 .
  27. Tadic, M. (1957). The Biology of the Codling Moth as the Basis for Its Control. Univerzitet U Beogradu.
  28. 1 2 Kirk, W.D.J. (1995). Parker, B.L.; Skinner, M.; Lewis, T. (eds.). Feeding behavior and nutritional requirements. Thrips Biology and Management. Plenum Press. pp. 21–29.
  29. 1 2 "Onion Thrips". NCSU. Retrieved 23 February 2017.
  30. Milne, M.; Walter, G.H. (1997). "The significance of prey in the diet of the phytophagous thrips, Frankliniella schultzei". Ecological Entomology. 22 (1): 74–81. doi:10.1046/j.1365-2311.1997.00034.x.
  31. Terry, I. (2001). "Thrips: the primeval pollinators?". Thrips and Tospoviruses: Proceedings of the 7th Annual Symposium on Thysanoptera: 157–162.
  32. Sakai, S (2001). "Thrips pollination of androdioecious Castilla elastica (Moraceae) in a seasonal tropical forest". American Journal of Botany. 88 (9): 1527–1534. doi:10.2307/3558396. JSTOR   3558396. PMID   21669685.
  33. Saxena, P.; Vijayaraghavan, M.R.; Sarbhoy, R.K.; Raizada, U. (1996). "Pollination and gene flow in chillies with Scirtothrips dorsalis as pollen vectors". Phytomorphology. 46: 317–327.
  34. Frame, Dawn (2003). "Generalist flowers, biodiversity and florivory: implications for angiosperm origins". Taxon. 52 (4): 681–5. doi:10.2307/3647343. JSTOR   3647343.
  35. Darwin, Charles (1892). The effects of cross and self fertilization in the vegetable kingdom. D. Appleton & Company. p. 11.
  36. Williams, G.A.; Adam, P.; Mound, L.A. (2001). "Thrips (Thysanoptera) pollination in Australian subtropical rainforests, with particular reference to pollination of Wilkiea huegeliana (Monimiaceae)". Journal of Natural History. 35 (1): 1–21. doi:10.1080/002229301447853.
  37. 1 2 Eliyahu, Dorit; McCall, Andrew C.; Lauck, Marina; Trakhtenbrot, Ana; Bronstein, Judith L. (2015). "Minute pollinators: The role of thrips (Thysanoptera) as pollinators of pointleaf manzanita, Arctostaphylos pungens (Ericaceae)". Journal of Pollination Ecology. 16: 64–71. doi:10.26786/1920-7603(2015)10. PMC   4509684 . PMID   26207155.
  38. García‐Fayos, Patricio; Goldarazena, Arturo (2008). "The role of thrips in pollination of Arctostaphyllos uva‐ursi". International Journal of Plant Sciences. 169 (6): 776–781. doi:10.1086/588068. S2CID   58888285.
  39. Childers, C.C. (1997). Lewis, T. (ed.). Feeding and oviposition injuries to plants. Thrips as Crop Pests. CAB International. pp. 505–538.
  40. 1 2 Mound, L. A. (2005). "Thysanoptera: diversity and interactions". Annual Review of Entomology. 50: 247–269. doi:10.1146/annurev.ento.49.061802.123318. PMID   15355240.
  41. Bailey, S. F. (1940). "The distribution of injurious thrips in the United States". Journal of Economic Entomology. 33 (1): 133–136. doi:10.1093/jee/33.1.133.
  42. Ananthakrishnan, T.N. (1993). "Bionomics of Thrips". Annual Review of Entomology. 38: 71–92. doi:10.1146/annurev.en.38.010193.000443.
  43. "Thrips tabaci (onion thrips)". Invasive Species Compendium. CABI. Retrieved 24 February 2017.
  44. Jorge, Nina Castro; Cavalleri, Adriano; Bedetti, Cibele Souza; Isaias, Rosy Mary Dos Santos (2016). "A new leaf-galling Holopothrips (Thysanoptera: Phlaeothripidae) and the structural alterations on Myrcia retorta (Myrtaceae)". Zootaxa. 4200 (1): 174–180. doi:10.11646/zootaxa.4200.1.8. ISSN   1175-5334. PMID   27988645.
  45. Mound, Laurence (2014). "Austral Thysanoptera: 100 years of progress". Australian Journal of Entomology. 53 (1): 18–25. doi:10.1111/aen.12054. S2CID   85793869.
  46. Blum, M.S. (1991). Parker, B.L.; Skinner, M.; Lewis, T. (eds.). "Towards understanding Thysanoptera: Chemical ecology of the Thysanoptera". Proceedings of the International Conference on Thrips. USDA Technical Report NE-147: 95–108.
  47. 1 2 Howard, Dennis F.; Blum, Murray S.; Fales, Henry M. (1983). "Defense in Thrips: Forbidding Fruitiness of a Lactone". Science. 220 (4594): 335–336. Bibcode:1983Sci...220..335H. doi:10.1126/science.220.4594.335. ISSN   0036-8075. PMID   17732921. S2CID   24856539.
  48. Tschuch, G.; Lindemann, P.; Moritz, G. (2002). Mound, L.A.; Marullo, R. (eds.). "Chemical defence in thrips". Thrips and Tospoviruses: Proceedings of the 7th International Symposium on Thysanoptera: 277–278.
  49. Milne, M.; Walter, G.H.; Milne, J.R. (2002). "Mating Aggregations and Mating Success in the Flower Thrips, Frankliniella schultzei (Thysanoptera: Thripidae), and a Possible Role for Pheromones". Journal of Insect Behavior. 15 (3): 351–368. doi:10.1023/A:1016265109231. S2CID   23545048.
  50. Kranz, B.D.; Schwarz, M.P.; Mound, L.A.; Crespi, B.J. (1999). "Social biology and sex ratios of the eusocial gall-inducing thrips Kladothrips hamiltoni". Ecological Entomology. 24 (4): 432–442. doi:10.1046/j.1365-2311.1999.00207.x.
  51. Kranz, Brenda D.; Schwarz, Michael P.; Wills, Taryn E.; Chapman, Thomas W.; Morris, David C.; Crespi, Bernard J. (2001). "A fully reproductive fighting morph in a soldier clade of gall-inducing thrips (Oncothrips morrisi)". Behavioral Ecology and Sociobiology. 50 (2): 151–161. doi:10.1007/s002650100347. JSTOR   4601948. S2CID   38152512.
  52. Crespi, B.J.; Mound, L.A. (1997). "Ecology and evolution of social behaviour among Australian gall thrips and their allies". In Choe, J.C.; Crespi, B.J. (eds.). The evolution of social behaviour of insects and arachnids. Cambridge University Press. pp. 166–180. ISBN   978-0-521-58977-2.
  53. Chapman, T.W.; Crespi, B.J. (1998). "High relatedness and inbreeding in two species of haplodiploid eusocial thrips (Insecta: Thysanoptera) revealed by microsatellite analysis". Behavioral Ecology and Sociobiology. 43 (4): 301–306. doi:10.1007/s002650050495. JSTOR   4601521. S2CID   32909187.
  54. Kranz, Brenda D.; Schwarz, Michael P.; Morris, David C.; Crespi, Bernard J. (2002). "Life history of Kladothrips ellobus and Oncothrips rodwayi: insight into the origin and loss of soldiers in gall-inducing thrips". Ecological Entomology. 27 (1): 49–57. doi:10.1046/j.1365-2311.2002.0380a.x.
  55. Weis-Fogh, T. (1973). "Quick estimates of flight fitness in hovering animals, including novel mechanisms for lift production". Journal of Experimental Biology. 59: 169–230.
  56. Sane, Sanjay P. (2003). "The aerodynamics of insect flight" (PDF). The Journal of Experimental Biology. 206 (23): 4191–4208. doi:10.1242/jeb.00663. PMID   14581590. S2CID   17453426.
  57. Wang, Z. Jane (2005). "Dissecting Insect Flight" (PDF). Annual Review of Fluid Mechanics. 37 (1): 183–210. Bibcode:2005AnRFM..37..183W. doi:10.1146/annurev.fluid.36.050802.121940.
  58. Lighthill, M. J. (1973). "On the Weis-Fogh mechanism of lift generation". Journal of Fluid Mechanics. 60: 1–17. Bibcode:1973JFM....60....1L. doi:10.1017/s0022112073000017.
  59. Ortega-Jiménez, Victor Manuel; Arriaga-Ramirez, Sarahi; Dudley, Robert (2016). "Meniscus ascent by thrips (Thysanoptera)". Biology Letters. 12 (9): 20160279. doi:10.1098/rsbl.2016.0279. PMC   5046919 . PMID   27624795.
  60. 1 2 Gullan, P. J.; Cranston, P. S. (2010). The Insects: An Outline of Entomology (4th ed.). Wiley. p.  511. ISBN   978-1-118-84615-5.
  61. 1 2 Smith, Tina M. (2015). "Western Flower Thrips, Management and Tospoviruses". University of Massachusetts Amherst. Retrieved 21 February 2017.
  62. Capinera, John L. (2001). Handbook of Vegetable Pests. Gulf. p. 538. ISBN   978-0-12-158861-8.
  63. 1 2 3 van der Kooi, C.J.; Schwander, T. (2014). "Evolution of asexuality via different mechanisms in grass thrips (Thysanoptera: Aptinothrips)" (PDF). Evolution. 68 (7): 1883–1893. doi:10.1111/evo.12402. PMID   24627993.
  64. Kumm, S.; Moritz, G. (2008). "First detection of Wolbachia in arrhenotokous populations of thrips species (Thysanoptera: Thripidae and Phlaeothripidae) and its role in reproduction". Environmental Entomology. 37 (6): 1422–8. doi:10.1603/0046-225X-37.6.1422. PMID   19161685. S2CID   22128201.
  65. Stannard, L.J. (1968). "The thrips, or Thysanoptera, of Illinois". Illinois Natural History Survey. 21 (1–4): 215–552. doi: 10.21900/j.inhs.v29.166 .
  66. Nault, L. R. (1997). "Arthropod transmission of plant viruses: a new synthesis". Annals of the Entomological Society of America. 90 (5): 521–541. doi:10.1093/aesa/90.5.521.
  67. Mound, L. A. (2001). "So many thrips – so few tospoviruses?". Thrips and Tospoviruses: Proceedings of the 7th International Symposium on Thysanoptera: 15–18.
  68. Morse, Joseph G.; Hoddle, Mark S. (2006). "Invasion Biology of Thrips". Annual Review of Entomology. 51: 67–89. doi:10.1146/annurev.ento.51.110104.151044. PMID   16332204. S2CID   14430622.
  69. Carlton, James (2003). Invasive Species: Vectors And Management Strategies. Island Press. pp. 54–55. ISBN   978-1-61091-153-5.
  70. Childers, C.C.; Beshear, R.J.; Frantz, G.; Nelms, M. (2005). "A review of thrips species biting man including records in Florida and Georgia between 1986–1997". Florida Entomologist. 88 (4): 447–451. doi: 10.1653/0015-4040(2005)88[447:AROTSB]2.0.CO;2 .
  71. Kivett, Jessica M.; Cloyd, Raymond A.; Bello, Nora M. (2015). "Insecticide rotation programs with entomopathogenic organisms for suppression of western flower thrips (Thysanoptera: Thripidae) adult populations under greenhouse conditions". Journal of Economic Entomology. 108 (4): 1936–1946. doi:10.1093/jee/tov155. ISSN   0022-0493. PMID   26470338. S2CID   205163917.
  72. Hoddle, Mark. "Western flower thrips in greenhouses: a review of its biological control and other methods". University of California, Riverside. Retrieved 21 February 2017.
  73. Katai, Yusuke; Ishikawa, Ryusuke; Doi, Makoto; Masui, Shinichi (2015). "Efficacy of red LED irradiation for controlling Thrips palmi in greenhouse melon cultivation". Japanese Journal of Applied Entomology and Zoology. 59 (1): 1–6. doi: 10.1303/jjaez.2015.1 .