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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.




Ecology


Dicyphus hesperus is a predator and preys on other insects such as whitefly, aphids, mites and caterpillars. It is used in the biological control of insect pests. However it is not entirely predatory and feeds on plant tissues also. One of its plant hosts is the common mullein (Verbascum thapsus). As an omnivore, it alternates between feeding on plants and on animals, and if deprived of all suitable plant tissue, it will die, even in the presence of whiteflies.




Use in biological control


Generalist predators can be very useful for biological control in tomato crops in enclosed environments, but the introduction of non-indigenous species is risky because of the unknown ecological effects they may have if they escape into the wider environment. For this reason, native species are preferable, and Dicyphus hesperus can fulfil this role in North America in the same way that Macrolophus caliginosus is used in vegetable crops in Europe.
Research has shown that D. hesperus preys on the greenhouse whitefly (Trialeurodes vaporariorum), and the two-spotted spider mite (Tetranychus urticae), both in the laboratory and in a glasshouse planted with tomatoes. When offered both pests it preferentially selects the whitefly. The mirid bug completed its development from egg to adult on either of the two food sources, but it grew faster and was larger at maturity when feeding on the whitefly.
Dicyphus hesperus has also been tested as a biological control for the western flower thrips (Frankliniella occidentalis) on tomatoes. It was effective at reducing the number of thrips but when the ratio of predator to prey was too high (>1:10), some damage was caused to the tomato fruits by D. hesperus.
Dicyphus hesperus feeds on the mullein Verbascum thapsus and to a lesser extent on the eggplant, and can be maintained on these plants in a greenhouse as a preventative measure. As well as controlling greenhouse whitefly and silverleaf whitefly (Bemisia tabaci), it feeds on russet mites (Aceria anthocoptes), predatory mites, aphids and the eggs of moths. It causes some damage to green tomato fruits in the absence of sufficient alternative plant sources of food, but does not cause sufficient harm for the ripe fruit to be down-graded. However, in gerbera crops, the nymphs and adults may feed on the developing flower buds and cause distortion and spoilage of the flowers.




References

Kata Kunci Pencarian:

• Dicyphus hesperus
• Verbascum thapsus
• Dicyphus
• Miridae
• Western flower thrips
• Hemiptera
• Macrolophus caliginosus

Dicyphus hesperus - Alchetron, The Free Social Encyclopedia

Dicyphus hesperus - Alchetron, The Free Social Encyclopedia

Dicyphus hesperus - Alchetron, The Free Social Encyclopedia

Dicyphus hesperus - Alchetron, The Free Social Encyclopedia

Dicyphus hesperus - Alchetron, The Free Social Encyclopedia

Dicyphus hesperus - Alchetron, The Free Social Encyclopedia

Dicyphus hesperus - Alchetron, The Free Social Encyclopedia

Dicyphus hesperus · iNaturalist

Dicyphus hesperus · iNaturalist.org

Dicyphus Hesperus for Whitefly Control – GrowLiv Biologicals

Dicyphus hesperus - Greenhouse IPM

Dicyphus hesperus - Greenhouse IPM

dicyphus hesperus

Daftar Isi

• Dicyphus hesperus - Wikipedia
• Dicyphus hesperus - Greenhouse IPM
• A powerful predator in the greenhouse - Greenhouse Canada
• ‘Dicyphus’ (Dicyphus hesperus) - Applied Bio-nomics
• Assessment of Dicyphus Hesperus (Knight) for the Biological …
• Dicyphus hesperus - Anatis Bioprotection
• "Come meet the 'surfers' on sticky plants: Dicyphus hesperus"
• Three Release Rates of Dicyphus hesperus (Hemiptera: Miridae) …
• Dicyphus hesperus - iNaturalist
• Dicyphus hesperus - Wikispecies

Dicyphus hesperus - Wikipedia

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.

Dicyphus hesperus - Greenhouse IPM

Dicyphus was developed as a biocontrol agent in North America to fill a similar role to that occupied by the predator Macrolophus in Europe. Macrolophus is not native in North America and is not allowed to be imported. Dicyphus is a predatory bug with piercing/sucking mouth-parts. These bugs are generalist feeders but they appear to have a ...

A powerful predator in the greenhouse - Greenhouse Canada

Jul 10, 2017 · Adult Dicyphus hesperus and Macrolophus pygmaeus. June 2017 – What is Dicyphus hesperus? Dicyphus was developed as a biocontrol agent in North America for the same role as the predator Macrolophus in Europe to control whiteflies on tomato crops.

‘Dicyphus’ (Dicyphus hesperus) - Applied Bio-nomics

The predatory bug, Dicyphus hesperus is similar to Macrolophus caliginosus, which is being used in Europe to control whitefly, spider mites, moth eggs and aphids. The use of Dicyphus is being studied by D. Gillespie (Agriculture and Agri-Foods Canada Research Station, Agassiz, BC).

Assessment of Dicyphus Hesperus (Knight) for the Biological …

Dicyphus hesperus Knight (Hemiptera: Miridae) has been evaluated for control of greenhouse whitefly Trialeurodes vaporariorum Westwood in temperate environments and has potential as a biocontrol agent for B. tabaci.

Dicyphus hesperus - Anatis Bioprotection

Dicyphus hesperus is a generalist predator who feeds on whiteflies, thrips, aphids, moth eggs and other pests. This predator is able to establish itself in greenhouses, keeping constant pressure on pest populations. Dicyphus is used successfully in several greenhouses in North America.

"Come meet the 'surfers' on sticky plants: Dicyphus hesperus"

Feb 5, 2025 · Native to North America, the zoophytophagous species, Dicyphus hesperus (Hemiptera: Miridae), is an invaluable tool in integrated pest management (IPM) as a beneficial insect.

Three Release Rates of Dicyphus hesperus (Hemiptera: Miridae) …

Jul 19, 2019 · Dicyphus hesperus is a zoophytophagous mirid predator native to North America. Three release rates of D. hesperus were evaluated on greenhouse tomato for control of the sweetpotato whitefly.

Dicyphus hesperus - iNaturalist

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.

Dicyphus hesperus - Wikispecies

Five new species of Dicyphus from western North America and one new Cyrtopeltis (Hemiptera, Miridae). The Pan-Pacific Entomologist 19 (2): 53–58. BHL. Reference page. Gillespie, D.R. et al. 2012: Plant feeding in an omnivorous mirid, Dicyphus hesperus: Why plant context matters. Psyche, 2012: Article ID 495805. DOI: 10.1155/2012/495805.