Western flower thrips has a punching-sucking feeding habit, using the mandible to punch a hole into the host and then inserting the maxillae into the opening. This cosmopolitan and polyphagous invader is abundant in many field and greenhouse crops. Western flower thrips, Frankliniella occidentalis P. (Thysanoptera: Thripidae) is a major agricultural and horticulture pest worldwide (Kirk, 2002; Kirk and Terry, 2003).It causes damage and spoilage to a vast number of economically important plant species through feeding, oviposition and spread of several plant diseases, most notably tospoviruses (Morse and Hoddle, 2006). Western flower thrips, Frankliniella occidentalis, is a worldwide pest with a wide range of host plants, the main ones being vegetable crops such as sweet peppers, strawberries, melons, cucumbers, eggplant, beans and tomatoes, as well as field crops, flowers, fruit trees, citrus and many ornamental plants. Host plant resistance to western flower thrips (WFT) in chrysanthemum was studied in several stages of plant development. Western flower thrips (WFT) Frankliniella occidentalis continues to be a serious pest of floriculture crops in New England. Chlorogenic acid is involved in host plant resistance to Western Flower Thrips (Frankliniella occidentalis), one of the key agri- and horticultural pests worldwide. This generally occurs in the compost or soil below the plant on which the larvae fed. 106); however, the western flower thrips is the more important vector. Plants were sampled primarily while in flower. TSWV is a tospovirus spread by western flower thrips, onion thrips (see Fact Sheet no. western flower thrips. Onion thrips (Thrips tabaci), top, and western flower thrips (Frankliniella occidentalis), bottom are typical thrips, none to easy to tell apar! This species of thrips is native to the Southwestern United States but has spread to other continents, including Europe, Australia (where it was identified in May 1993), and South America via transport of infested plant material. Unfortunately, there is little basic ecophysiology information on the response of western flower thrips to host plant chemistry. Based on pesticide resistance studies, western flower thrips has various metabolic detoxification enzyme systems that could help it to overcome secondary plant defenses (Jensen 2000; Espinosa et al. Western flower thrips will … Plant length and leaf area of non-flowering Dendranthema grandiflora Tzvelev were reduced after WFT infestation, and these two variables were correlated. Scarring on avocados. The behavioural responses of adult female western flower thrips, Frankliniella occidentalis (Pergande) to volatiles from meadow-sweet (Filipendula ulmaria), bay laurel (Laurus nobilis) and sage (Salvia officinalis) were investigated in laboratory bioassays. The western flower thrips [Frankliniella occidentalis (Pergande)] is an invasive pest insect in agriculture. Western flower thrips host plants include digitalis, tanacetums, lobelias, verbascums, stachys, and achilleas. Female adult western flower thrips of different age were randomly collected with a small aspi- We confirmed whether α-ionone is effective for the combination of Arabidopsis and western flower thrips by releasing adult female thrips onto the leaf surface of wild-type (Col-0) plants that were treated with 300 μM α-ionone. The female makes an incision into the leaf, stem or fruit of plants with her serrated ovipositor and deposits a single egg. Volatiles collected by entrainment of a solvent extract of F. ulmaria were more attractive than was the original extract. Thrips palmi was first described by H. Karny in 1925 from specimens collected in 1921 on tobacco in Sumatra. western flower thrips, Frankliniella occidentalis (Pergande), one of the most destructive insect pests of greenhouse-grown crops. The objective of this study was to investigate quantitative host plant resistance to thrips in carrot and to identify candidate compounds for constitutive resistance. Damage includes feeding scars and leaf distortion (see Figures 9 and 10). Distribution and host range. An infestation of Western Flower Thrips (WFT), Frankliniella occidentalis (Pergande), recently developed on young citrus trees in a greenhouse devoted to rearing Asian citrus psyllid (ACP), Diaphorina citri Kuwayama. Then ingest the cell contents of western flower thrips, there is little basic information! 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