1. -- So far, even ardent environmentalists acknowledge that insects have not developed resistance to modified pesticides, as they expected. 2. Most insects cannot be properly identified until they are mature adults, usually the time when insects have developed wings. 3. The ability of bacteria that cause infections to become increasingly resistant to antibiotics, and the resistance insects develop to pesticides offer real life examples of evolution. 4. The idea is that if insects develop resistance, they will mate with those nearby that are susceptible, thereby diluting that resistance. 5. He notes that insects can develop a resistance to pesticides, but not against natural predators. 6. He notes that insects can develop a resistance to pesticides but not against natural predators. 7. Insects are developing resistance to many insecticides, and plants to herbicides. 8. Some environmentalists have raised concerns about the engineered cotton, fearing insects will develop a resistance to the gene. 9. Some believe a cool, wet April, followed by a warm May, allowed the insects to develop too quickly. |