Diocalandra frumenti

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Diocalandra frumenti
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Infraorder: Cucujiformia
Family: Curculionidae
Subfamily: Dryophthorinae
Genus: Diocalandra
Species:
D. frumenti
Binomial name
Diocalandra frumenti
(Fabricius, 1801)
Synonyms [1]
  • Sitophilus frumenti Fabricius, 1801
  • Calandra stigmaticollis Gyllenhal, 1838
  • Calandra montrouzieri Chevrolat, 1882
  • Calandra bifasciata Boisduval, 1835
  • Calandra punctigera Pascoe, 1885
  • Calandra sechellarum Kolbe, 1910
  • Diocalandra frumentiMarshall & G.A.K., 1931 [2]
  • Sitophilus stigmaticollis Gyllenhal, 1838
  • Sitophilus subfasciatus Boheman, 1838
  • Sitophilus subsignatus Gyllenhal, 1838
  • Sphenophorus cruciger Motschulsky, 1858
  • Sphenophorus palmarum Montrouzier, 1861
  • Calandra frumenti Fabricius, 1801

Diocalandra frumenti, commonly known as the palm weevil borer, the lesser coconut weevil, [3] or four-spotted coconut weevil, [4] is a species of weevil in the family Curculionidae. It occurs in Africa, Southern Asia and Northern Australia, and is a pest of coconut and other palm trees.

Contents

Distribution

Diocalandra frumenti is found in Somalia, Tanzania, Madagascar, the Seychelles, Mauritius, India, Sri Lanka, Bangladesh, Myanmar, Malaysia, Singapore, Indonesia, the Philippines, Japan, Taiwan, Papua New Guinea, various Pacific island groups and Australia. It has also been recorded in the Canary Islands. [5] [6] Although infesting a number of species of palm, it is a major pest of coconut (Cocos nucifera), oil palm (Elaeis guineensis), Canary Island date palm (Phoenix canariensis), date palm (Phoenix dactylifera), California fan palm (Washingtonia filifera) and Mexican fan palm (Washingtonia robusta). [7]

Life cycle

The adult Diocalandra frumenti is about 7 mm (0.3 in) long. It is a glossy black colour with four large rusty-brown or blackish-brown coloured spots on the elytra (wing covers). The female lays eggs in crevices in the stems of palms which hatch in about a week. The larvae bore into the stem where they form extensive galleries. After eight to ten weeks they pupate, the adult emerging from the pupal case about eleven days later. [8]

Damage

Eggs may be laid among the flowers, in cracks in the leaf or flower stalks, or near the base of the stem just above the adventitious roots. As the larvae bore deeper into the palm, a gummy exudate forms in the entry hole. The galleries can damage any part of the palm including the roots. Leaves may turn yellow and fruit may drop off, and severe infestations may cause the plant to die. [8] It has been found that the males emit a pheromone which attract females, and this may make it possible to trap the insects, which are strong fliers, and reduce the level of infestation. The weevil has a number of natural enemies including a parasite Spathius apicalis , a predatory fly Chrysophilus ferruginosus and a predatory beetle Plaesius javanus . [9]

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The Curculionidae are a family of weevils, commonly called snout beetles or true weevils. They are one of the largest animal families with 6,800 genera and 83,000 species described worldwide. They are the sister group to the family Brentidae.

<i>Phoenix</i> (plant) Genus of flowering plants of the palm family

Phoenix is a genus of 14 species of palms, native to an area starting from the Canary Islands in the west, across northern and central Africa, to the extreme southeast of Europe (Crete), and continuing throughout southern Asia, from Anatolia east to southern China and Malaysia. The diverse habitats they occupy include swamps, deserts, and mangrove sea coasts. Most Phoenix species originate in semi-arid regions, but usually occur near high groundwater levels, rivers, or springs. The genus is unusual among members of subfamily Coryphoideae in having pinnate, rather than palmate leaves; tribe Caryoteae also have pinnate or bipinnate leaves.

<span class="mw-page-title-main">Bookworm (insect)</span> Any insect that is said to bore through books

Bookworm is a general name for any insect that is said to bore through books.

<span class="mw-page-title-main">Bark beetle</span> Subfamily of beetles

A bark beetle is the common name for the subfamily of beetles Scolytinae. Previously, this was considered a distinct family (Scolytidae), but is now understood to be a specialized clade of the "true weevil" family (Curculionidae). Although the term "bark beetle" refers to the fact that many species feed in the inner bark (phloem) layer of trees, the subfamily also has many species with other lifestyles, including some that bore into wood, feed in fruit and seeds, or tunnel into herbaceous plants. Well-known species are members of the type genus Scolytus, namely the European elm bark beetle S. multistriatus and the large elm bark beetle S. scolytus, which like the American elm bark beetle Hylurgopinus rufipes, transmit Dutch elm disease fungi (Ophiostoma). The mountain pine beetle Dendroctonus ponderosae, southern pine beetle Dendroctonus frontalis, and their near relatives are major pests of conifer forests in North America. A similarly aggressive species in Europe is the spruce ips Ips typographus. A tiny bark beetle, the coffee berry borer, Hypothenemus hampei is a major pest on coffee plantations around the world.

<i>Rhynchophorus ferrugineus</i> Pest weevil on palm (oil, coconut, date)

The palm weevil Rhynchophorus ferrugineus is one of two species of snout beetle known as the red palm weevil, Asian palm weevil or sago palm weevil. The adult beetles are relatively large, ranging between 2 and 4 centimetres long, and are usually a rusty red colour—but many colour variants exist and have often been classified as different species. Weevil larvae can excavate holes in the trunks of palm trees up to 1 metre (3.3 ft) long, thereby weakening and eventually killing the host plant. As a result, the weevil is considered a major pest in palm plantations, including the coconut palm, date palm and oil palm.

<i>Rhyzopertha</i> Genus of beetles

Rhyzopertha is a monotypic genus of beetles in the family Bostrichidae, the false powderpost beetles. The sole species, Rhyzopertha dominica, is known commonly as the lesser grain borer, American wheat weevil, Australian wheat weevil, and stored grain borer. It is a beetle commonly found within store bought products and pest of stored cereal grains located worldwide. It is also a major pest of peanuts. The first documentation of wheat infestation by R. dominica was observed in Australia. R. dominica are usually reddish brown to dark brown in coloration, vary in sizes, elongated and cylindrical.

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<i>Rhynchophorus cruentatus</i> Species of beetle

The palmetto weevil is an insect native to Florida, but has been found as far as southern Texas to the west and South Carolina to the north. It is the largest weevil in North America and the only kind of palm weevil in the continental United States. It infests palms and is considered a pest. Its main target is the Canary Island date palm, but date palms, sabal palms, saw palmetto, Washingtonia, Pritchardia, royal palms, Latania, coconut palms, Caryota, and Bismarckia are also susceptible. Distressed palm trees are usually attacked, which makes transplanted trees a frequent target. The Palmetto Weevils mate at the base of the palm branches where the females deposit their eggs. The grubs then eat into the palm tree, killing it. After the larvae have turned into adult weevils, the damage can be seen, but by then, it is considered to be too late for the tree. The life cycle from egg to adult for a palmetto weevil is about 84 days. For prevention, it is recommended an appropriate insecticidal crown drench is done twice a year for high value palms.

<i>Rhynchophorus</i> Genus of beetles

Rhynchophorus, or common name palm weevils, is a genus of beetles in the weevil family, Curculionidae. Palm weevils are major pests of various trees in the family Arecaceae throughout the tropics including: coconut, Areca catechu, species of the genus Phoenix, and Metroxylon sagu. Two species are invasive pests outside their native ranges, Rhynchophorus ferrugineus and Rhynchophorus palmarum.

<i>Rhynchophorus palmarum</i> Weevil pest of coconut-/date-/oil-palms

The South American palm weevil, Rhynchophorus palmarum, is a species of snout beetle. The adults are relatively large black beetles of approximately one and a half inch in length, and the larvae may grow to two inches in length.

The Coconut black headed caterpillar, is a species of moth found in throughout East Asian countries including Bangladesh, India, Sri Lanka, Myanmar, as well as Indonesia. It is considered a pest of coconut palm trees, causing considerable damage to the trees, and reducing the plant's yield significantly and can be a major problem where coconuts contribute to the economy. The species exists on coconut palms through its life stages from larval to moth, and utilizes the tree fronds as a main source of nutrition. Various methods of control have been explored, yet the primary control method is the administration of pesticides directly to the root of the coconut palms.

<i>Sternochetus mangiferae</i> Species of beetle

Sternochetus mangiferae is a weevil commonly known as the mango seed weevil, mango stone weevil, or mango weevil. It is a compact weevil typical of the Cryptorhynchinae. It was first described in 1775 in the genus Curculio. The adults are 7.5-9.5 mm long and 4 mm in width.

Chilo partellus, the spotted stalk borer or spotted stem borer, is a moth in the family Crambidae. It was described by Charles Swinhoe in 1885. It is found in India, Pakistan, Iran, Ethiopia, Lesotho, Madagascar, Malawi, South Africa, Sudan, Tanzania, Uganda and on Mayotte.

<span class="mw-page-title-main">Stemborer</span> Index of animals with the same common name

A stemborer is any insect larva, or arthropod, that bores into plant stems. However the term most frequently refers among the Coleoptera to the larva of certain longhorn beetles such as Dorysthenes buqueti and those of the genus Oberea, and among the Lepidoptera to certain moths of the Crambidae, Castniidae, Gelechiidae, Nolidae, and Pyralidae families.

A storage pest is an insect or other animal that damages or destroys stored food or other stored valuable organic matter. Insects are a large proportion of storage pests with each type of crop having specific insects that gravitate towards them such as the genus Tribolium that consists of insects such as Tribolium castaneum or Tribolium confusum which damage flour crops primarily.

<i>Oemona hirta</i> Longicorn beetle native to New Zealand

Oemona hirta, the lemon tree borer, also known as the whistling beetle or the singing beetle, is a longhorn beetle endemic to New Zealand. Its larvae are generalist feeders, boring into the wood of a wide variety of trees, native and introduced. When citrus orchards were first established in New Zealand, this beetle started inflicting serious damage, and so gained the name "lemon tree borer". Four species within the genus Oemona have been identified, suggesting that more species could be found. When disturbed by predators or humans, the adult beetle stridulates creating a "rasp" or "squeak" sound by rubbing its thorax and head together against an area of thin ridges. Māori would eat a liquid called "pia manuka", which was produced by manuka trees when its wood was damaged by the larvae. When Captain Cook first arrived in NZ, his naturalists, Banks and Solander, collected a lemon tree borer in their first collection between 1769 and 1771. This oldest collected specimen can be found in the British Museum. A few years after the first collection, the species would be first described by the Danish naturalist Fabricius in 1775.

Euplatypus parallelus, previously known as Platypus parallelus, is a species of ambrosia beetle in the weevil family Curculionidae. The adults and larvae form galleries in various species of tree and logs. It is native to Central and South America but has spread globally, is present in Africa and is well established in tropical Asia.

<i>Cosmopolites sordidus</i> Species of beetle

Cosmopolites sordidus, commonly known as the banana root borer, banana borer, or banana weevil, is a species of weevil in the family Curculionidae. It is a pest of banana cultivation and has a cosmopolitan distribution, being found in all parts of the world in which bananas are grown. It is considered the most serious insect pest of bananas.

Aleurotrachelus atratus better known as the palm-infesting whitefly is an invasive species that affects coconut palms. Originally, this species was only prevalent in Brazil and was known to feed on coconuts native to this country. Now, the species has migrated to the tropics and subtropics and is invasive in many other countries. Aleurotrachelus is one of the largest genus, containing 74 species.

<i>Odoiporus longicollis</i> Species of beetle

Odoiporus longicollis, commonly known as banana stem weevil or banana pseudostem borer, is a species of weevil found in South Asia and South East Asia.

References

  1. "Diocalandra frumenti (Fabricius, 1801): lesser coconut weevil". Discover Life. Retrieved 30 November 2019.
  2. Global Biodiversity Information Facility: Diocalandra frumenti Marshall & G.A.K., 1931 (retrieved 9 January 2020)
  3. "Diocalandra frumenti (palm weevil borer)". UniProt. Retrieved 30 November 2019.
  4. Vacas, S.; Navarro, I.; Seris, E.; Ramos, C.; Hernández, E.; Navarro-Llopis, V.; Primo, J. (2017). "Identification of the Male-Produced Aggregation Pheromone of the Four-Spotted Coconut Weevil, Diocalandra frumenti". Journal of Agricultural and Food Chemistry. 65 (2): 270–275. doi:10.1021/acs.jafc.6b04829. hdl: 10251/101790 .
  5. "Diocalandra frumenti: distribution". EPPO Global Database. Archived from the original on 5 December 2019. Retrieved 30 November 2019.
  6. Lu Xiu-xia (2003). "The dangerous palm weevil borer, Diocalandra frumenti (Fabricius), and its morphological differences with related species (Coleoptera:Curculionidae)". Forest Pest and Disease. 6.
  7. "Diocalandra frumenti: hosts". EPPO Global Database. Archived from the original on 5 December 2019. Retrieved 30 November 2019.
  8. 1 2 Howard, F.W.; Giblin-Davis, R.; Moore, D.; Abad, R. (2001). Insects on Palms. CABI. p. 287. ISBN   978-0-85199-705-6.
  9. Lever, R.J. (1969). Pests of the Coconut Palm. FAO. pp.  122–123. ISBN   978-92-5-100857-7.