Final answer:
Insects like weevils use piercing and sucking as their feeding method to extract plant sap without causing significant physical damage.
Explanation:
Piercing and sucking is the feeding method used by insects like weevils with mouthparts adapted for penetrating plant tissues and extracting sap. These insects have slender, sharp mouthparts that act like a straw to withdraw plant fluids without damaging the tissue extensively. Aphids, squash bugs, scale insects, and leafhoppers are examples of piercing-sucking insects that can cause various symptoms like discolorations, leaf curling, and wilting in plants.
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