To develop an insecticide resistance management program for onion thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae), on onions (Allium spp.), we surveyed populations in commercial onion fields in New York and evaluated their susceptibility to the two most widely used classes of insecticides plus two new insecticides during 2003-2005. All insecticide evaluations were conducted using the T...

thrips species injurious to grapes are known as pests in vineyards all over the world and belong to the main pests of grapes in west azarbaijan, iran. in this study, thrips species occurring in west azarbaijan vineyards were identified and the predominant species documented according to their relative abundance at different growth stages. the seasonal abundance of predominant species was invest...

Populations of onion thrips, Thrips tabaci Lindeman, from commercial onion Þelds in New York were evaluated for their susceptibility to the commonly used pyrethroid, -cyhalothrin (Warrior T), using a novel system called the Thrips Insecticide Bioassay System (TIBS). To use TIBS, thrips are collecteddirectly from theplant into an insecticide-treated 0.5-mlmicrocentrifuge tube that has a ßexible ...

Although thrips are globally important crop pests and vectors of viral disease, species identifications are difficult because of their small size and inconspicuous morphological differences. Sequence variation in the mitochondrial COI-5' (DNA barcode) region has proven effective for the identification of species in many groups of insect pests. We analyzed barcode sequence variation among 471 th...

Thrips tabaci Lindeman (Thysanoptera: Thripidae), a cosmopolitan pest insect, is subdivided into at least three genetic lineages that have different biological characters, such as reproductive mode and resistibility to insecticides. Since the lineages are discriminated only by mitochondrial DNA, there is a possibility of gene flow among lineages at the genomic level. Nine polymorphic microsatel...

thrips tabaci lindeman is an extensively distributed pest insect in many areas that affects plants through direct feeding and at the same time, it makes damage as a vector of different viruses. as a basic first step to control pests is authentic identification, but the inability to determine morphological characters of thrips species makes this process very difficult. for creating an identifica...

Field trials were laid in the farmer’s holdings at Kaalipalayam, Coimbatore district during August, 2011 to November, 2011 to assess the efficacy of selected botanical insecticides against aphids, thrips, leaf miners and defoliators infesting Solanum nigrum. The results of the experiments revealed that among the treatments, foliar spray of profenophos is found to be the best treatment for the m...

Onion is the most important vegetable produced in Burkina Faso. It contributes to food and nutrition security a source of income for farmers. Thrips, which feed on leaves plant, are main insect pest onion. The objective this study was access diversity, host range distribution Thrips spp. three onion production areas Three sites were chosen each basin, plant species present sampled inspected det...

A system is described for collecting adult and larva of Thrips tabaci from onion foliage into insecticide-treated vials to evaluate susceptibility to insecticides. The thrips insecticide bioassay system (TIBS) allows one to treat vials and store them for 3 weeks before thrips are collected. Depending on the population density in the field, collection of the insects for the test required from 3-...