Using GE rice created to fight pests, for example, causes the number of insects in a field drop.

FORBES: Genetic Engineering: A Food Fix?

Kuan-Shu says the ducks cut down on pests such as golden apple snails while fertilizing the rice with their droppings.

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Massive application of pesticides has meanwhile extinguished some pests and insects while letting others thrive, including the American bollworm, an unpleasant cotton blight, and rice-leaf folder.

ECONOMIST: Punjabis are poisoning themselves