| variation in the bemisia tabaci s. l. species complex (hemiptera: aleyrodidae) and its natural enemies leading to successful biological control of bemisia biotype b in the usa. | parasitoids of the bemisia tabaci (gennadius) species complex collected in spain and thailand were evaluated as biological control agents of b. tabaci biotype b in cole crops in texas, usa. parasitoids were identified by morphological and rapd-pcr analyses. the most abundant parasitoid from spain was eretmocerus mundus mercet with apparent field parasitism of 39-44%. in thailand, encarsia formosa gahan, e. transvena timberlake, e. adrianae lopez-avila, eretmocerus sp. 1 and sp. 2 emerged, with a ... | 2000 | 11020790 |
| assessment of cross-resistance potential to neonicotinoid insecticides in bemisia tabaci (hemiptera: aleyrodidae). | laboratory bioassays were carried out with four neonicotinoid insecticides on multiple strains of bemisia tabaci (gennadius) to evaluate resistance and cross-resistance patterns. three imidacloprid-resistant strains and field populations from three different locations in the southwestern usa were compared in systemic uptake bioassays with acetamiprid, dinotefuran, imidacloprid and thiamethoxam. an imidacloprid-resistant strain (im-r) with 120-fold resistance originally collected from imperial va ... | 2005 | 16336702 |