9 articles
Aphid
Aphids (plant lice, Aphidoidea) are small sap-sucking insects feeding on phloem via stylets, reproducing by live birth, hosting Buchnera symbionts, and including about 100 major crop pest species that transmit plant viruses.
Aphid natural enemies and biological control
Aphid natural enemies are the parasitoid wasps, predatory midges, hoverflies, and bugs that kill aphids; biological control is their deliberate use to keep aphids below damaging levels.
Aphididae
Aphididae (aphids, plant lice) is the largest family of Aphidoidea, Hemiptera: about 5,100 phloem-feeding species with viviparous parthenogenetic females, Buchnera symbionts, honeydew, and major plant-virus vectoring.
Aphis
Aphis, described by Linnaeus in 1758, is the largest aphid genus, with an estimated 450 to 600 species including major agricultural pests like the cotton aphid.
Black bean aphid
Black bean aphid (Aphis fabae), a dark purplish-black aphid pest of faba bean, common bean, and sugar beet; host-alternates via Euonymus europaeus, vectors BCMV, BCMNV, CMV, and beet viruses, causing bean yield losses up to 90% in East Africa.
Phylloxera
Phylloxera (Daktulosphaira vitifoliae, formerly Phylloxera vastatrix) is a North American root-feeding aphid-like insect that reached France in the 1860s, destroyed about 40% of French vines, and is controlled by grafting Vitis vinifera onto resistant American rootstocks.
Russian wheat aphid
Russian wheat aphid (Diuraphis noxia), a global phytotoxic aphid pest of wheat and barley from Central Asia; spreads via parthenogenesis, causes chlorotic streaking and up to 95% yield loss, and does not transmit viruses.
Soybean aphid
Soybean aphid (Aphis glycines), an Asian aphid invasive in North America since 2000, is the primary soybean pest there; it overwinters on buckthorn and is managed with a 250-aphids-per-plant economic threshold and Rag-gene resistance.
Witch-hazel cone gall aphid
Witch-hazel cone gall aphid (Hormaphis hamamelidis, also called Hormaphis cornu), a North American aphid making scarlet cone-shaped galls on witch-hazel leaves, alternating with birch where it lives as a scale-like, gall-free form; galls are usually cosmetic.