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The Aphididae are a very large insect family in the aphid superfamily (), of the order Hemiptera.These insects suck the sap from plant leaves. Several thousand species are placed in this family, many of which are considered plant/crop pests.
Aphids on plant host. Plants mount local and systemic defenses against aphid attack. Young leaves in some plants contain chemicals that discourage attack while the older leaves have lost this resistance, while in other plant species, resistance is acquired by older tissues and the young shoots are vulnerable.
Aphis nerii is an aphid of the family Aphididae. [2] Its common names include oleander aphid , milkweed aphid , [ 3 ] sweet pepper aphid , [ 4 ] and nerium aphid . [ 5 ]
Learn what causes aphids and how to identify, kill, and control them naturally for healthy plants with no aphid holes. An aphid infestation can ruin a garden. Learn what causes aphids and how to ...
Aphis is a genus of insects in the family Aphididae containing at least 600 species of aphids. [1] It includes many notorious agricultural pests , such as the soybean aphid Aphis glycines . Many species of Aphis , such as A. coreopsidis and A. fabae , are myrmecophiles , forming close associations with ants .
Woolly aphids generally are not much cause for alarm, although they can cause rather unsightly damage to plants, which is particularly a problem for growers of ornamental plants. Symptoms caused by their feeding on a plant include twisted and curled leaves, yellowed foliage, poor plant growth, low plant vigor, and branch dieback. [citation needed]
Lipaphis erysimi is a species of aphid of the family Aphididae. [3] Its common names include mustard aphid [4] and turnip aphid. [5] It is found in most temperate and tropical areas of the world and feeds only on cruciferous plants. The insects are almost exclusively female and are very prolific, with wingless females producing around one ...
Later she suggested using the names A. pomi and A. spiraecola on the basis of the plants on which they were found [7] [8] [9] thus leading to the names each species is known by today. Another species, A. citricola was described by van der Groot in 1912 while doing a study in Chile.