Abstract
AbstractThis chapter focuses on the assessment of the risk of greater crop damage in Bt cotton by nontarget pest herbivores or disease transmitted by these pests. A diagram of possible risk hypotheses for nontarget herbivores associated with Bt cotton that could lead to pest outbreaks is presented. The following procedures for the evaluation of potential risks associated with the effects of Bt cotton on nontarget herbivores in cotton ecosystems in Vietnam are discussed: (i) list nontarget herbivores and identify species for further evaluation; (ii) identify potential exposure pathways and potential adverse effect pathways; and (iii) formulate risk hypotheses and design and conduct risk experiments based on the identified exposure pathways and adverse effect pathways to try to reject the risk hypothesis.
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