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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]
Toxoptera citricida (syn. Toxoptera citricidus) is a species of aphid known by the common names brown citrus aphid, black citrus aphid, and oriental citrus aphid. It is a pest of citrus and vector for the pathogenic plant virus citrus tristeza virus. The aphid spread the virus through citrus groves in Brazil and Venezuela in the 1970s, leading ...
Adult D. citri. The adult psyllid is about four millimetres long with a fawn and brown mottled body and a light brown head. It is covered with a whitish, waxy secretion which makes it look dusty. The forewings are broadest at the back and have a dark edging around the periphery with a pale gap near the apex. The antennae are pale brown with ...
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
Aphis spiraecola is a species of aphid described in 1914 by Edith Marion Patch. [1] Its common names include green citrus aphid, [2] Spirea aphid, [3] and apple aphid. [4] It is distributed worldwide, and is most abundant in the United States. [5] It has a diploid chromosome number of 2n=8. [6]
Adult citrus flatid planthoppers. Adults of Metcalfa pruinosa can reach a length of 5.5–8 millimetres (7 ⁄ 32 – 5 ⁄ 16 in) and a width of 2–3 millimetres (5 ⁄ 64 – 1 ⁄ 8 in) at the widest point. [7] They are initially whitish. The color of adults may vary from brown to gray, in connection with the presence of a bluish white ...
Many pest aphids, however, do not overwinter as an egg but as nymphs or adults and others as both eggs and active stages (see Williams and Dixon 2007). For their size, the parthenogenetic individuals have very short developmental times and potentially prodigious rates of increase (de Réaumur 1737; [ 3 ] [ page needed ] Huxley 1858; Kindlmann ...
Wingless aphids feeding on a stem. The black bean aphid is a small, soft-bodied (meaning that the exocuticle part of the exoskeleton is greatly reduced) [5] insect that has specialised piercing and sucking mouthparts which are used to suck the juice from plants. This aphid is usually seen in large numbers and is a tiny, plump insect about two ...