Question

 'Trap Cropping' in organic cotton often involves planting Marigold (Tagetes) around the field perimeter. Marigold is specifically effective against the Spotted Bollworm (Earias vittella) because?

A The strong odor of marigold repels the adult moths entirely
B The bollworm moth prefers to lay eggs on marigold flowers rather than cotton
C Marigold roots secrete nematicides that protect cotton
D Marigold attracts predators that specifically eat bollworm eggs
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