This biotech summary (190kb) contains background information on IRM strategies used to delay the development of resistance in insects targeted by insect-protected crops that produce insecticidal Bacillus thuringiensis (Bt) proteins. The summary provides an overview of current IRM plans implemented by biotech companies, as well as possibilities for future IRM strategies.

Overview

* Bt crops, which provide "built-in" protection against specific insect pests, can provide many benefits including effective and specific control of insect pests

* Insects may evolve resistance to any widely used, effective control tactic, thus the possible evolution of insect resistance to Bt crops must be addressed

* Insect resistance management programs for Bt crops have been developed, implemented, and refined to delay insect resistance development.

* Experts from industry, academia and regulatory agencies have worked together to design and implement effective resistance management plans that are crop and region-specific

* The newest generation products express additional Bt genes or other insecticidal gene combinations with multiple modes of action that increase the durability of these technologies

An extensive listing of citations (170kb) related to environmental safety (including insect resistance management) is also attached.

Monsanto

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