Lathrolestes ensator

Last updated

Lathrolestes ensator
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Ichneumonidae
Genus: Lathrolestes
Species:
L. ensator
Binomial name
Lathrolestes ensator
(Brauns, 1898)

Lathrolestes ensator is a species of wasp in the family Ichneumonidae. it is a parasitoid of the apple sawfly Hoplocampa testudinea . Both insects are native to Europe, but the sawfly has been accidentally introduced into North America where it has become established. [1] The larvae of the sawfly tunnel into developing apple fruitlets which later fall to the ground, where the larvae continue their development. The wasp parasitises the larvae and has been released in North America as part of a biological control programme for the sawfly. [2]

Contents

Ecology

In a research study in the Netherlands, L. ensator was the only parasitoid of the apple sawfly larvae that was found, and the sawfly was the only host used by it. The wasp preferentially chose second instar larvae in which to lay eggs, and the spring emergence of the adult wasp usually synchronised with this stage of the host's life cycle. The female wasp produced around 150 eggs but did not actually oviposit as many as half of these. [3]

Use in biological control

In Europe, the apple sawfly is part of the food web, but when it was accidentally introduced into North America, there were no natural enemies to control it and it caused much damage to the apple crop. In a classical biological control programme. L. ensator was released into Quebec between 1994 and 2001 and became established in the Frelighsburg area. Further work was undertaken between 2002 and 2015 to spread the parasite throughout eastern North America. This was done by collecting fallen fruitlets of apple trees in infected orchards in the Frelighsburg area, and scattering them in orchards in other parts of Quebec, Ontario, Nova Scotia and New Hampshire. As a result of this introduction, the wasp became established in three other parts of Quebec and in Hilton in Ontario. [4]

Related Research Articles

<span class="mw-page-title-main">Tachinidae</span> Family of insects

The Tachinidae are a large and variable family of true flies within the insect order Diptera, with more than 8,200 known species and many more to be discovered. Over 1,300 species have been described in North America alone. Insects in this family commonly are called tachinid flies or simply tachinids. As far as is known, they all are protelean parasitoids, or occasionally parasites, of arthropods, usually other insects. The family is known from many habitats in all zoogeographical regions and is especially diverse in South America.

<span class="mw-page-title-main">Sawfly</span> Suborder of insects

Sawflies are wasp-like insects that are in the suborder Symphyta within the order Hymenoptera, alongside ants, bees, and wasps. The common name comes from the saw-like appearance of the ovipositor, which the females use to cut into the plants where they lay their eggs. The name is associated especially with the Tenthredinoidea, by far the largest superfamily in the suborder, with about 7,000 known species; in the entire suborder, there are 8,000 described species in more than 800 genera. Symphyta is paraphyletic, consisting of several basal groups within the order Hymenoptera, each one rooted inside the previous group, ending with the Apocrita which are not sawflies.

<span class="mw-page-title-main">Ichneumonidae</span> Family of wasps

The Ichneumonidae, also known as ichneumon wasps, ichneumonid wasps, ichneumonids, or Darwin wasps, are a family of parasitoid wasps of the insect order Hymenoptera. They are one of the most diverse groups within the Hymenoptera with roughly 25,000 species described as of 2016. However, this likely represents less than a quarter of their true richness as reliable estimates are lacking, along with much of the most basic knowledge about their ecology, distribution, and evolution. It is estimated that there are more species in this family than there are species of birds and mammals combined. Ichneumonid wasps, with very few exceptions, attack the immature stages of holometabolous insects and spiders, eventually killing their hosts. They thus fulfill an important role as regulators of insect populations, both in natural and semi-natural systems, making them promising agents for biological control.

<i>Trichogramma</i> Genus of parasitic insects

Trichogramma is a genus of minute polyphagous wasps that are endoparasitoids of insect eggs. Trichogramma is one of around 80 genera from the family Trichogrammatidae, with over 200 species worldwide.

<span class="mw-page-title-main">Codling moth</span> Species of moth that feeds on fruit (Cydia pomonella)

The codling moth is a member of the Lepidopteran family Tortricidae. They are major pests to agricultural crops, mainly fruits such as apples and pears, and a codling moth larva is often called an "apple worm". Because the larvae are not able to feed on leaves, they are highly dependent on fruits as a food source and thus have a significant impact on crops. The caterpillars bore into fruit and stop it from growing, which leads to premature ripening. Various means of control, including chemical, biological, and preventive, have been implemented. This moth has a widespread distribution, being found on six continents. Adaptive behavior such as diapause and multiple generations per breeding season have allowed this moth to persist even during years of bad climatic conditions.

<span class="mw-page-title-main">Scarlet lily beetle</span> Species of beetle

The scarlet lily beetle, red lily beetle, or lily leaf beetle, is a leaf beetle that eats the leaves, stem, buds, and flowers, of lilies, fritillaries and other members of the family Liliaceae. It lays its eggs most often on Lilium and Fritillaria species. In the absence of Lilium and Fritillaria species, there are fewer eggs laid and the survival rate of eggs and larvae is reduced. It is now a pest in most temperate climates where lilies are cultivated.

<i>Quassia amara</i> Species of tree

Quassia amara, also known as amargo, bitter-ash, bitter-wood, or hombre grande is a species in the genus Quassia, with some botanists treating it as the sole species in the genus. The genus was named by Carl Linnaeus who named it after the first botanist to describe it: the Surinamese freedman Graman Quassi. Q. amara is used as insecticide, in traditional medicine and as additive in the food industry.

<span class="mw-page-title-main">Parasitoid wasp</span> Group of wasps

Parasitoid wasps are a large group of hymenopteran superfamilies, with all but the wood wasps (Orussoidea) being in the wasp-waisted Apocrita. As parasitoids, they lay their eggs on or in the bodies of other arthropods, sooner or later causing the death of these hosts. Different species specialise in hosts from different insect orders, most often Lepidoptera, though some select beetles, flies, or bugs; the spider wasps (Pompilidae) exclusively attack spiders.

<span class="mw-page-title-main">Birch leafminer</span> Name for a group of sawflies

Birch leafminers are sawflies, which are closely related to bees and wasps. They are among the most common insect pests affecting birch trees in North America. The primary species affecting birch trees in North America are Profenusa thomsoni and Fenusa pumila. Areas inside the leaves are consumed by the larvae, affecting the leaves' ability to produce food. Yearly browning of birch leaves are noticed in mid July and August, but the leafminers have been feeding inside the leaf tissue since early spring.

<span class="mw-page-title-main">Wasp</span> Group of insects

A wasp is any insect of the narrow-waisted suborder Apocrita of the order Hymenoptera which is neither a bee nor an ant; this excludes the broad-waisted sawflies (Symphyta), which look somewhat like wasps, but are in a separate suborder. The wasps do not constitute a clade, a complete natural group with a single ancestor, as bees and ants are deeply nested within the wasps, having evolved from wasp ancestors. Wasps that are members of the clade Aculeata can sting their prey.

<i>Phyllonorycter blancardella</i> Species of moth

Phyllonorycter blancardella, the spotted tentiform leafminer, is a moth of the family Gracillariidae. It is known from all of Europe, east to Ukraine and central Anatolia. It is also known throughout North America including Nova Scotia, Quebec, Ontario, Wisconsin and California.

<i>Rhyssa persuasoria</i> Species of wasp

Rhyssa persuasoria, also known as the sabre wasp, is a species belonging to the family Ichneumonidae subfamily Rhyssinae. Members of this subfamily, including those of Rhyssa and the allied Megarhyssa, are also known collectively as giant ichneumonid wasps or giant ichneumons.

<i>Tenthredo scrophulariae</i> Species of sawfly

Tenthredo scrophulariae, the figwort sawfly, is a species of the family Tenthredinidae, subfamily Tenthredininae.

Hoplocampa testudinea, the apple sawfly or European apple sawfly, is a species of sawfly in the family Tenthredinidae. It is native to Europe but has been accidentally introduced into North America where it became invasive. The larvae feed inside the developing fruits of the apple tree.

<i>Dahlbominus fuscipennis</i> Species of wasp

Dahlbominus fuscipennis, the sawfly parasitic wasp, is a species of chalcid wasp from the family Eulophidae which parasitizes the European pine sawfly Neodiprion sertifer, among other hosts. It is the only species in the genus Dahlbominus.

<i>Acantholyda erythrocephala</i> Species of sawfly

Acantholyda erythrocephala is a species of sawfly in the family Pamphiliidae commonly known as the red-headed pine sawfly or the pine false webworm. Native to Europe, it has been introduced into North America where it has become invasive.

<i>Eriocampa ovata</i> Species of sawfly

Eriocampa ovata, known generally as the alder sawfly or woolly alder sawfly, is a species of common sawfly in the family Tenthredinidae. The larvae feed on the leaves of the common alder and the grey alder, sometimes causing defoliation.

<i>Ibalia leucospoides</i> Species of wasp

Ibalia leucospoides, the knife-shaped ibalia, is a species of ibaliid wasp in the family Ibaliidae.

<i>Profenusa thomsoni</i> Species of sawfly

Profenusa thomsoni, the amber-marked birch leaf miner, is a species of sawfly in the family Tenthredinidae. It is native to the Palearctic realm but has spread to North America. The larvae feed on the foliage of birch trees.

Lathrolestes luteolator is a species of wasp in the family Ichneumonidae. It is native to North America and is a parasitoid of various species of sawfly larvae. In the 1990s, it started to parasitise the larvae of the invasive amber-marked birch leaf miner in Alberta. When this pest spread to Alaska, the wasp was used in biological pest control.

References

  1. Langor, David; Sweeney, Jon (2009). Ecological Impacts of Non-Native Invertebrates and Fungi on Terrestrial Ecosystems. Springer Science & Business Media. p. 14. ISBN   978-1-4020-9680-8.
  2. "European apple sawfly". Ontario: Ministry of Agriculture, Food and Rural Affairs. Retrieved 14 May 2017.
  3. Zijp, J.P.; Blommers, L.H.M. (2002). "Impact of the parasitoid Lathrolestes ensator (Hym., Ichneumonidae, Ctenopelmatinae) as antagonist of apple sawfly Hoplocampa testudinea (Hym., Tenthredinidae)". Journal of Applied Entomology. 126 (7–8): 366–377. doi:10.1046/j.1439-0418.2002.00666.x. S2CID   85031521.
  4. Vincent, Charles; Appleby, Margaret; Eaton, Alan; Lasnier, Jacques (2016). "Dissemination of Lathrolestes ensator (Ichneumonidae), a larval parasite of the European Apple Sawfly, Hoplocampa testudinea (Tenthredinidae), in Eastern North America". Biological Control. 100: 1–6. Bibcode:2016BiolC.100....1V. doi:10.1016/j.biocontrol.2016.03.012. S2CID   86947092.