WebSep 30, 2024 · The bluegreen aphid ( Acyrthosiphon kondoi) is a pest of lucerne, lupins, medics, clovers, and pastures. This tiny pest feeds directly on the foliage, damaging the plant and spreading harmful viruses through infected crops. The bluegreen aphid is grey-green to blue-green in colour and can be confused with the pea aphid or the green … WebAphids on alfalfa (Medicago sativa) including Aphis craccivora Koch (cowpea aphid, CPA), Acyrthosiphon pisum Harris (pea aphid, PA) and Therioaphis trifolii Buckton (spotted alfalfa aphid, SAA) cause significant yield losses worldwide. In this experiment, the development of these three species of aphids on 16 alfalfa cultivars was compared. The results showed …
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WebSigni cant progress has been made in the understanding of genetic resistance towards bluegreen aphid in the model legume Medicago truncatula 3. Two resistance genes were mapped to coiled coil (CC ... WebPlanting alfalfa varieties resistant to blue alfalfa aphid has been the most effective means of controlling aphids in alfalfa. Prolonged periods of below-normal temperatures, however, may lower plant resistance to blue alfalfa aphid when it is most needed and some crop injury … quotes about changed behavior
Pea aphid biotype performance on diverse Medicago host …
WebOct 3, 2013 · Description: The blue alfalfa aphid looks very much like the pea aphid. However, the blue alfalfa aphid is slightly smaller, more of a blue-green in color, and may have a waxy appearance. In contrast, the … WebSep 28, 2024 · For information on collecting and posting samples email [email protected] or call 0487 292 556. Bluegreen aphids can be identified by their grey-green to blue-green colour, oval-shaped body, and long legs. Adults are approximately three millimetres long and are most common in spring and autumn. … http://www.naaic.org/stdtests/updated/pdfs/BlueAlfalfaAphid.pdf shirley martinet