An aphid is a small insect that belongs to the order Hemiptera. It is commonly found on plants and is known for its ability to feed on plant sap using its specialized mouthparts. Aphids come in various colors, such as green, brown, or black, and can reproduce rapidly, leading to infestations. They are considered pests in agriculture and gardening as they can cause damage to crops and ornamental plants by weakening their growth, deforming leaves and stems, and spreading diseases. Aphids also secrete a sticky substance called honeydew, which can attract other pests and promote the growth of sooty mold.

“aphid”的英语定义和含义

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