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Citrus Blackfly Aleurocanthus Woglumi Prevention Monitoring Direct Control

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Citrus Blackfly Aleurocanthus Woglumi Prevention Monitoring Direct Control PEST MANAGEMENT DECISION GUIDE: GREEN LIST Citrus blackfly Aleurocanthus woglumi Prevention Monitoring Direct Control l Remove weeds and alternate hosts of l Monitor citrus trees for symptoms of blackfly infestation, also observe trees l Control ant populations to reduce their blackfly (e.g. guava and pomegranate) for distored leaves and ant presence. ability to protect blackflies from natural from neighbouring areas to reduce the l Symptoms of blackfly infestation include sticky honeydew accumlating on enemies. presence of blackfly populations. leaves and stems and the appearance of sooty black mould. Ants are l Use of parasitic wasps (e.g. Encarsia l Improve spacing and air circulation within commonly associated with the presence of blackflies due to the honeydew perplexa and Amitus hesperidum to Citrus blackfly infestation of a citrus orchards by pruning infested plant deposits. reduce blackfly populations. leaf (Natalie Hummel, areas to reduce suitable habitat for l Adults are 1-1.7 mm long, black/grey insects. Young adults are initially l Use of fungi Ascgersoni aleurodis or Louisianna State University blackflies and population spread. AgCenter, Bugwood.org) orange bodied which darkens over time. The wings have pale markings in Aegerita webberi to control larvae and l Avoid the use of wide spectrum pesticides a band, with the legs having pale-yellow markings. pupae. so to conserve the natural enemies of l Larvae and pupal stages can be observed as sedintary, small black scales l Use of neem seed extract spray (4%) blackfly such as parasitoids, ladybird and attached to the underside of leaves. to reduce blackfly populations and not lacewing. l Eggs are found on the underside of leaves, they are golden brown and harm natural enemies. darken prior to hatching. Adult citrus blackfly (Florida Division of Plant Industry, Bugwood.org) Eggs and larvae on the underside of a leaf (Florida Division of Plant Industry, Bugwood.org) Note: Pesticides may be available to control this pest. Please check with the Ministry of Agriculture in your country to find out which pesticides are registered in your country and the local restrictions for their use. CREATED/UPDATED: LOSE LESS, FEED MORE PRODUCED BY: Plantwise Plantwise is a CABI-led global initiative www.plantwise.org ©CAB International. Published under a CC-BY-SA 4.0 licence.
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