insecticide resistance in bemisia tabaci (homoptera: aleyrodidae) populations from crete. | the resistance levels to alpha-cypermethrin, bifenthrin, pirimiphos-methyl, endosulfan and imidacloprid were determined in bemisia tabaci (gennadius) from crete. five b tabaci populations collected from greenhouse and outdoor crops were bioassayed and compared with a reference susceptible strain. bemisia tabaci collected in a floriculture greenhouse exhibited the highest resistance against all insecticides: at lc50, resistance factors were 23-fold for bifenthrin, 80-fold for alpha-cypermethrin, ... | 2005 | 15712366 |