Explain insect resistant crops, Biology

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Insect resistant crops (IRC)

Should reduce use of insecticides. This is beneficial to environment because:
more beneficial insects around as they are not killed by insecticides
less impact on food web as not eradicating part of the food chain
Effect of insect resistant crops on other organisms.
possible effect on non target organisms who eat plant (student not expected to have read any research but could hypothesise)
possible impact on food web connections from a decrease in insect populations

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