This research demonstrates that the population of beneficial insects is not reduced by genetically protected plants, as it is with conventional chemical insecticides. Resistance advisory group formed for cotton, enlisting expert entomologists and agronomists to help with development of an effective insect resistance management plan. 1992 Research conducted on insect population dynamics in potatoes. This research demonstrates that beneficial insects thrive in protected fields and help control other pests. For example, that lacewing helps control aphids.
Research continues on the size and configuration of refuge areas, confirming earlier studies.
Baseline monitoring is conducted for Colorado potato beetle, establishing a five-fold range of susceptibility and demonstrating the effectiveness of protected plants across that range. Resistance advisory group formed for potatoes, enlisting expert entomologists and agronomists to help with development of an effective insect resistance management plan. 1993 Data filed with the U.S. Environmental Protection Agency for registration of protective protein from B.t. tenebrionis used to protect potatoes. Research conducted on insect behavior in potatoes, providing additional understanding of insect biology to help implement an effective resistance management plan. Research conducted on mixtures of protected and unprotected potato plants as seed, demonstrating that this refuge approach does not protect against mature insects that may be less susceptible.