What are the different ways in which insects attack the crop plants? ASAP Please.?

Question

What are the different ways in which insects attack the crop plants ?

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Amal

Answer 1

1.  Eat the roots (beetle larvae)

2.  Eat the leaves (adult beetles and caterpillars)

3.  Eat the fruit (caterpillars, fruit flies)

4.  Drill into and suck juices from the stems (beetles, aphids)