DISTRIBUTION OF CHILLI THRIPS, SCIRTOTHRIPS DORSALIS (THYSANOPTERA: THRIPIDAE), IN PEPPER FIELDS AND PEPPER PLANTS ON ST. VINCENT

An Overview of Chilli Thrips, Scirtothrips dorsalis (Thysanoptera: Thripidae) Biology, Distribution and Management

Silicon APPlicATionS hAve MiniMAl effecTS on ScirtothripS dorSaliS (ThYSAnoPTeRA: ThRiPiDAe) PoPUlATionS on PePPeR PlAnT, capSicum annum l

Silicon (Si) is the second most abundant element in soils, and at elevated concentration levels in plant tissue Si is reported to improve plant resistance to a range of biotic and abiotic stresses. in the present study, Si solutions at 100, 300 or 500 mg l-1 made from potassium silicate (K2Sio3) were applied as foliar sprays or soil drenches to pepper (capsicum annum l.) plants, and their effec...

Evaluation of Entomopathogenic Fungi Against Chilli Thrips, Scirtothrips dorsalis

Commercial strains of entomopathogenic fungi were evaluated for control of chilli thrips, Scirtothrips dorsalis Hood (Thysanoptera: Thripidae), an invasive pest of ornamental and vegetable plants in the Caribbean and southeastern United States. In laboratory assays, LC50 values against adult S. dorsalis were 5.1 × 10(4) CFU/mL for Beauveria bassiana GHA, with higher values 3.1 × 10(5) for Metar...

Integrated management tactics for Frankliniella thrips (Thysanoptera: Thripidae) in field-grown pepper.

In a 2-yr study, the impacts of different plastic soil mulches, insecticides, and predator releases on Frankliniella thrips and their natural enemies were investigated in field-grown peppers. Ultraviolet light (UV)-reflective mulch significantly reduced early season abundance of adult thrips compared with standard black plastic mulch. This difference diminished as the growing seasons progressed...

Key for Identification of Adult Female of Scirtothrips dorsalis (Thysanoptera: Thripidae) Based on External Morphology

Thrips are minute insects and belong to the family thripidae of the order Thysanoptera. Thrips are less than two millimeters long, slender like and agile insects. Head of Scirtothrips dorsalis is pale in colour longer than broad, 217.5-237 μm long and 175-194 μm wide across the eyes. Eyes are redish in colour, 75-89 μm long and 63-70 μm wide at the middle and three occili are arranged triangula...