Wyoming Pesticide Applicator Certification Practice Test 2026 – The Comprehensive Guide to Exam Success!

Cross-resistance in the context of pesticide resistance refers to a scenario where a pest population that is already resistant to one pesticide becomes resistant to a related chemical. This phenomenon occurs because pests that have developed resistance mechanisms to one pesticide may also exhibit the same resistance to other chemicals that have a similar mode of action or chemical structure. This is an important consideration when developing pest management strategies to combat resistance effectively.

Option A, which mentions a formulation with the active ingredient enclosed in capsules of polyvinyl, is not related to the concept of cross-resistance in pesticide resistance.

Option C, describing organisms whose population has been reduced to near extinction, does not align with the definition of cross-resistance.

Option D, referring to all the features that surround and affect an organism, is a broad definition not specific to the concept of cross-resistance in pesticide resistance.