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Toxoptera aurantii, also known as both the black citrus aphid and brown citrus aphid, is a species of aphid in the superfamily Aphidoidea in the order Hemiptera. It is a true bug and sucks sap from plants. It is known to hosts in well over 150+ plant species. [1]
Some species of aphid, known as "woolly aphids" (Eriosomatinae), excrete a "fluffy wax coating" for protection. [29] The cabbage aphid, Brevicoryne brassicae , sequesters secondary metabolites from its host, stores them and releases chemicals that produce a violent chemical reaction and strong mustard oil smell to repel predators. [ 104 ]
Myzus persicae, known as the green peach aphid, greenfly, or the peach-potato aphid, [2] is a small green aphid belonging to the order Hemiptera. It is the most significant aphid pest of peach trees, causing decreased growth, shrivelling of the leaves and the death of various tissues.
Woolly aphids on crab apple bark. Pemphigus gall on cottonwood tree Grylloprociphilus imbricator on Fagus Galls made by Melaphis rhois. Woolly aphids (subfamily: Eriosomatinae) are sap-sucking insects that produce a filamentous waxy white covering which resembles cotton or wool. The adults are winged and move to new locations where they lay egg ...
The survival of the eggs and/or overwintering aphids determines the numbers of aphids present the following spring. [4] The within-year dynamics of aphids are largely determined by seasonal changes in host quality. Aphids do best when amino acids are actively translocated in the phloem.
Eggs are laid at the base of the host plant and these hatch in the spring. Winged forms are produced after three generations and these winged aphids then move on to other plants. [4] In the autumn the aphids move on to the seed pods of the host plant. [4] Like most aphids, M. viciae is viviparous. [4]
Brevicoryne brassicae, commonly known as the cabbage aphid or cabbage aphis, is a destructive aphid (plant louse) native to Europe that is now found in many other areas of the world. [1] The aphids feed on many varieties of produce, including cabbage , broccoli (especially), Brussels sprouts , cauliflower and many other members of the genus ...
Acyrthosiphon pisum, commonly known as the pea aphid (and colloquially known as the green dolphin, [1] [2] pea louse, and clover louse [3]), is a sap-sucking insect in the family Aphididae. It feeds on several species of legumes (plant family Fabaceae ) worldwide, including forage crops, such as pea , clover , alfalfa , and broad bean , [ 4 ...