Life Cycle: Eriosoma lanigerum is an exotic species in the Middle East. In North America its primary host is the American elm tree (Ulmus. back to HYPP Zoology home page. Eriosoma lanigerum (Hausmann) Schizoneura lanigerum. Insecta, Homoptera, Pemphigidae. woolly apple aphid. Compiled by Whitney Cranshaw, Colorado State University. Eriosoma lanigerum (Hausmann) Homoptera: Eriosomatidae.
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References Top of page [Padgham DE], Therefore, measures of control must be addressed as well on roots as on the canopy.
Eriosoma lanigerum – Wikipedia
Systemic carbamates are presently effective against the pest in Israel. Roots of apple trees in the greenhouse were treated with the plant hormones indoleacetic acid and 6-benzyl-aminopurine to induce gall formation. Bulletin of Entomological Research 95 3 All the orchards had major infestations of WAA and erkosoma under organic management.
This observation could be attributed to these insects emerging from overwintering mummies. Description Top of page Relatively small to medium-sized aphids, characterized by a reddish-brown body, a blood-red stain when crushed and a fluffy, flocculent wax covering Eriosoa, ; Blackman and Eastop, Penn State College of Agricultural Sciences. Entomologicheskoe Obozrenie, 49 4: PLOS One 6 The authors suggested that these protected sites act as eirosoma for woolly apple aphid populations in apple orchards.
Any errors in identification or information are ours alone, and we would be very grateful for any corrections. Bulletin of Entomological Research 53 lnaigerum Air movement over a smooth surface in the laboratory caused most of the aphids to orient themselves with or against the flow of air. Protection of apple orchards against woolly aphid Eriosoma lanigerum Hausm.
Apple Best Practice Guide
A second approach to management, that of controlling the root colonies, was explored for the first time in this region. Crawlers up, down and canopyA. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report. The strong correlation observed between EarwP and EarwC suggests that glue tapes are a practical and efficient means by which to estimate the presence of earwigs in the orchard, without the need for special shelters.
Field biology of woolly apple aphid, Eriosoma lanigerum Hausmannand its natural enemy, Aphelinus mali Haldemanin apple orchards in the Western Cape Province. In Expt 1 insettlement, development and survival of the aphids were assessed on five apple accessions.
Aphids generally show a preference for the lower part of the canopy and the trunk. Prevention and Control Top of page Biological Control The chalcidoid parasite Aphelinus mali has been introduced into many countries in attempts to control E.
WAA winter survival and role of natural enemies In our study, low winter temperatures did not kill aerial colonies of WAA. The apple tree is its secondary host, on which alate viviparous adults produce parthenogenic apterate populations throughout the year.
The nymphs are salmon pink in eriosma with dark eyes and circular cornicles which are slightly raised from the surface of the abdomen. Natural enemies of the woolly apple aphid, Eriosoma lanigerum Hausmann Hemiptera: David Philip, Cape Town, Datasheet Eriosoma lanigerum woolly aphid.
Eriosoma lanigerum (Woolly apple aphid): identification, images, ecology, control
To our knowledge, this is the first approach aimed at modeling canopy infestations and crawler movement of WAA. Predation of such colonies by earwigs in early spring is important to maintain them under low levels, allowing their later control by the parasitoid from summer to fall.
Interval and mean number of aphids for each category according to the qualitative index.
The earliest stages are known as crawlers and they do not produce the waxy filaments until they settle to feed. Plant Protection Quarterly 1416— The perpetuation of the species appeared to be entirely due to parthenogenesis, with overwintering accomplished in the form of cold-resistant apterous virginoparae.
Detection and Inspection Top of page E. Distribution Maps of Pests. Population dynamics of Woolly Apple Aphid Homoptera: Pests and diseases and their control. Second international symposium on integrated fruit production, Veldhoven, Netherlands, Augustdriosoma A second peak occurred in November and December, followed ,anigerum a decline during January and February.
Linking current practices of area-wide pest management information on pest population genetics and geographical barriers would increase the efficiency of these programs. Aphididae in Central Washington. Environmental Entomology, erioxoma 5: