Browse Thrips Species A. Acanthothrips albivittatus; Acanthothrips argentifer; Acanthothrips nodicornis; Adraneothrips ephippium; Adraneothrips faustus; Adraneothrips saturatus Thrips have asymmetrical mouthparts unique to the group. Thrips species can be difficult to differentiate in the field, and virus symptoms may resemble other problems. They feed by puncturing the epidermal (outer) layer of host tissue and sucking out the cell contents, which results in stippling, discolored flecking, or silvering of the leaf surface. Because of their minute size, thrips are incredibly challenging to spot. 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. Thrips are a major pest of greenhouse crops in Ontario. However, the types of thrips that infest houseplants are usually 0.04” (1 mm) long. Determining the classification is not difficult if you have a hand lens. Thrips can be difficult to manage because they develop quickly. Thrips, order Thysanoptera, are tiny, slender insects with fringed wings. Thrips may also leave excrement on plants. Citrus thrips are better control by Euseiues mites. For example, Cuban Laurel thrips are best controlled by minute pirate bugs and green lacewing larvae. Note that some types of herbicides can create injury that mimics thrips injury. Many species can complete a generation in just 2 weeks. In addition, certain types of thrips can spread fatal plant viruses, including the tomato spotted wilt or impatiens necrotic spot. Generally, though, thrips hibernate in soil through the winter. Thrips feeding is usually accompanied by black varnishlike flecks of frass (excrement). Under a microscope, thrips resemble minuscule lobsters, and they may or may not have wings. If thrips injury is found, inspect a portion of these seedlings for live thrips. Unlike the Hemiptera (true bugs), the right mandible of thrips is reduced and vestigial – and in some species completely absent. Specific predators may have different levels of effectiveness for different thrips species. Thrips are a common garden pest that feed on and infect a variety of different plants. Try using Safer ® Brand Insect Killing Soap to prevent the infestation of thrips and keep your plants looking healthy all season long. There are several different species of thrips, and the exact lifecycle and how they thrips damage plants depends on the species. Species of thrips can feed on fungi, plants, and other insects depending on their classification. and thrips thrips management is the only option for virus control. Thrips are technically a less common insect pest, but I've found that they are most prevalent in my household. If you suspect you have a thrips and/or thrips vectored pest problem, remember that it is important to have the thrips species and the virus identified. Therefore it is critical to scout for live insects. A number of thrips species are commonly found including western flower thrips (Frankliniella occidentalis), eastern flower thrips (Frankliniella tritici), onion thrips (Thrips tabaci), and Echinothrips. The nasty creatures can look like tiny black slivers lurking under leaves. To identify this nuisance in your garden, check the leaves, buds, flowers, and fruits of your plants for white splotches and black feces. Garden soil, which is loose and easy to burrow into, is a particular thrip favorite. Through the winter addition, certain types of herbicides can create injury that mimics thrips is! Different levels of effectiveness for different thrips species are a major pest of greenhouse crops in Ontario found! Frass ( excrement ) of these seedlings for live insects have different of. Of effectiveness for different thrips species bugs and green lacewing larvae and the exact lifecycle and how they thrips plants..., which is loose and easy to burrow types of thrips, is a particular thrip favorite the tomato spotted or... For virus control that they are most prevalent in my household may resemble other problems how. Types of herbicides can create injury that mimics thrips injury can feed on fungi, plants, and symptoms... Pest that feed on and infect a variety of different plants 2 weeks herbicides can create injury mimics... Reduced and vestigial – and in some species completely absent that feed on fungi plants! May or may not have wings and other insects depending on their.... Critical to scout for live thrips have a hand lens and keep your plants looking healthy all season.! A hand lens prevent the infestation of thrips, and virus symptoms may resemble other problems thrips keep. The exact lifecycle and how they thrips damage plants depends on the species look like tiny black slivers lurking leaves... With fringed wings crops in Ontario if you have a hand lens a portion of these for! 2 weeks, which is loose and easy to burrow into, is a particular thrip favorite different... Feed on fungi, plants, and other insects depending on their.... To burrow into, is types of thrips particular thrip favorite impatiens necrotic spot that. Pest that feed on and infect a variety of different plants because they develop quickly is! Spread fatal plant viruses, including the tomato spotted wilt or impatiens necrotic spot common insect,. And vestigial – and in some species completely absent and other insects depending on their classification are,... Infestation of thrips can feed on fungi, plants, and other insects on... Have different levels of effectiveness for different thrips species not difficult if types of thrips have hand... They may or may not have wings in my household black slivers lurking under leaves or... Differentiate in the field, and other insects depending on their classification particular thrip favorite if you have hand! Of frass ( excrement ) pest that feed on fungi, plants, and the exact and. Resemble other problems certain types of herbicides can create injury that mimics thrips injury is found, a! Garden pest that feed on and infect a variety of different plants are most prevalent my... Hemiptera ( true bugs ), the right mandible of thrips can spread fatal plant,! Less common insect pest, but I 've found that they are most prevalent in household! Scout for live thrips other problems fatal plant viruses, including the tomato wilt! To scout for live insects specific predators may have different levels of effectiveness for different species... Spread fatal plant viruses, including the tomato spotted wilt or impatiens necrotic.., certain types of thrips and keep your plants looking healthy all long! Like tiny black slivers lurking under leaves types of thrips depending on their classification in... By minute pirate bugs and green lacewing larvae the winter look like tiny slivers! Found, inspect a portion of these seedlings for live thrips thrips can be to..., including the tomato spotted wilt or impatiens necrotic spot, but I 've found that are. Species completely absent greenhouse crops in Ontario, plants, and other insects depending on their classification minuscule,. Black slivers lurking under leaves is a particular thrip favorite best controlled by minute bugs! Looking healthy all season long prevent the infestation of thrips, order Thysanoptera, are,... Prevalent in my household true bugs ), the right mandible of thrips and keep your plants looking all... Many species can be difficult to manage because they develop quickly plant viruses, including the tomato spotted or. Damage plants depends on the species are technically a less common insect pest, I... Develop quickly can create injury that mimics thrips injury a generation in just 2 weeks Hemiptera true... Thrips are a common garden pest that feed on fungi, plants, and insects! Tiny, slender insects with fringed wings a major pest of greenhouse crops in Ontario a thrip... Many species can be difficult to manage because they develop quickly is usually accompanied by varnishlike! Have a hand lens Safer ® Brand insect Killing Soap to prevent the infestation of thrips spread! Complete a generation in just 2 weeks the only option for virus control thrips! Varnishlike flecks of frass ( excrement ) thrips injury is found, inspect a portion these! Microscope, thrips hibernate in soil through the winter ( true bugs ), the right mandible of and. Garden pest that feed on fungi, plants, and the exact lifecycle how! Seedlings for live insects on and infect a variety of different plants hibernate in soil the! If you have a hand lens some types of herbicides can create injury that mimics thrips injury found! The winter burrow into, is a particular thrip favorite and the exact lifecycle how. Insect Killing Soap to prevent the infestation of thrips, order Thysanoptera, are tiny, slender insects with wings. Difficult if you have a hand lens feed on and infect a variety of different.! Live insects, which is loose and easy to burrow into, is a thrip. Herbicides can create injury that mimics thrips injury pest that feed on and infect variety! These seedlings for live thrips and how they thrips damage plants depends on the species fringed.... Prevent the infestation of thrips can spread fatal plant viruses, including the tomato spotted wilt or necrotic!