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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 [1] but has spread to other continents, including Europe, Australia (where it was identified in May 1993 [1]), and South America via transport of infested plant material.
Flower thrips can be agricultural pests in either two species of thrips in the genus Frankliniella: F. tritici , Eastern flower thrips F. occidentalis , Western flower thrips
Thrips are a minor concern in wine and raisin but are significant pests in table varieties. [53] This includes Grape Thrips (Drepanothrips reuteri) and Western Flower Thrips. [53] The scarring that they cause defaces the appearance of table grapes. [53] Grape Thrips in Salvador is especially problematic. [53] See § Western Flower Thrips.
For instance, western flower thrips are known to love pale roses with strong fragrances, but they aren’t as interested in scent-free, dark roses that produce tight flower buds. 9. Use Reflective ...
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. [86] Other viruses that they spread include the genera Ilarvirus, (Alpha |Beta |Gamma)carmovirus, Sobemovirus and Machlomovirus. [87]
They are sites where a female has oviposited into developing flower buds or fruitlets. Despite the cosmetic damage suffered by these light skinned apple cultivars they are seemingly unaffected by most thrip vectored viruses. Infested apples of the mountain west simply provide a natural setting for Western Flower Thrips to thrive and reproduce.
Ullman is known for her research that revolves around an insect called a thrip and the orthotospoviruses that thrips can transmit to crop plants. An example of a virus she has worked with is the Tomato spotted wilt orthotospovirus (TSWV) which is transmitted by western flower thrips. [ 5 ]
The chili thrips, Scirtothrips dorsalis, is an Asian pest on many crops, including chili peppers, roses, strawberry, tea, ground nuts, and castor bean. The western flower thrips, Frankliniella occidentalis , has recently expanded its range from western North America to large portions of Europe and Asia through the trade of greenhouse plants.