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Macrosiphum albifrons, the lupin aphid, is a species of large grey/ green aphid in the family Aphididae. [1] [2] [3] [4]It is a species native to North America but was first reported in the UK in 1981 where it now occurs widely.
Aphids may occupy the undersides of leaves where spray misses them, while systemic insecticides do not move satisfactorily into flower petals. Finally, some aphid species are resistant to common insecticide classes including carbamates, organophosphates, and pyrethroids. [128]
Thus, aphids show very complex and rapidly changing within-year dynamics, with each clone going through several generations during the vegetative season and being made up of many individuals, which can be widely scattered in space. The survival of the eggs and/or overwintering aphids determines the numbers of aphids present the following spring ...
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]
Aphis gossypii — cotton aphid; Aphis glycines — soybean aphid; Aphis helianthi — sunflower aphid; Aphis nerii — oleander aphid; Aphis pomi — apple aphid; Aphis rubicola — small raspberry aphid; Aphis rumicis - black aphid; Aphis spiraecola — spirea aphid (syn. Aphis citricola — citrus aphid) Aphis valerianae — black valerian aphid
The aphids migrate back to primary hosts in August and overwinter as eggs on weeds. In North America they are heavily parasitized by the braconid wasp Aphidius nigripes , which lays its eggs in the aphid nymphs, and these are eventually killed by the wasp larvae developing inside them.
Around June, the aphid moves to its secondary host, the potato, and the wasp accompanies it. [1] Female Aphidius nigripes emit pheromones soon after emerging from their pupa to attract winged males. The female mates only once, storing the sperm. She oviposits eggs into the immature stages of the potato
Brachycaudus helichrysi is a species of aphid first described by the German naturalist Johann Heinrich Kaltenbach in 1843. [3] Its common names include leaf curl plum aphid , [ 4 ] and leaf-curling plum aphid , and it is a serious pest of plum and damson trees.