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from | Encarta |  |
Insect Trap in a Cotton Field |
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| Insect larvae, especially the pink bollworm, are especially damaging to cotton crops because they eat cotton seeds. This insect trap uses pheromones, chemical signals that affect animal behavior, to lure male insects inside the container. Without males to fertilize the females' eggs, the life cycle of the insect is disrupted. Insect traps are a form of biological pest control, a method that does not use environmentally harmful chemicals. | ||||||
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| Richard T. Nowitz/Corbis | ||||||
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| Appears in these articles: | ||||||
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| Pest Control; Pheromone | ||||||
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