The Q-biotype Whitefly

摘要

Background: In 2004, the Q-biotype of the sweet potato whitefly, Bemisia tabaci, was identified in the U.S. for the first time. The level of insecticide resistance to pyriproxyfen (Distance) and imidaclo-prid (Marathon) of the Q-biotype was higher than any U.S. population of B-biotype whiteflies (silverleaf white-fly, Bemisia argentifolii) previously tested. An Ad Hoc Whitefly Task Force was established in the spring of 2005 to response to this new pest. This task force includes representatives fromthe cotton, vegetable and ornamentals industries as well as regulators and scientists. The work conducted by this task force has been important in helping to avoid "panic" reactions from any one industry segment or from regulators. The efforts of the task force will continue but will require strong ornamentals industry support.