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STEM BORERS

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3. Behavior<br />

Adults:<br />

Activity at night; hide in crops or weeds<br />

during daytime;<br />

Good at flying with phototaxis;<br />

Eggs laid at back of leaves near central<br />

veins in masses of scales; 20-30 eggs a<br />

mass and 300-600 eggs per female adult;<br />

Prefer not to lay on plants lower than<br />

50cm.

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