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Utah State University Extension

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Most insects are bene cial; however, a few can cause serious injury to plants if left unchecked. Insects feed on or damage plants in three basic ways: 1) Chewing on the leaves, which reduces the plant’s ability to produce energy; 2) Piercing/sucking on the internal uids of the plants, which reduces plant vigor; and 3) Boring, which disrupts water and nutrient ow.



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