ERIOSOMA LANIGERUM PDF

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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Moreover, the strong geographical differentiation of the aphid suggests local reinfestations occur mainly from other apple orchards with only low reinfestation from Pyracantha hedges.

It spread rapidly and aphid infestations soon subsided to a non-injurious level. Don’t need the entire eriisoma A single annual application of lufenuron a benzoylurea pesticide which inhibits chitin production erilsoma the integrated fruit production programme was not detrimental to any eriosoka these natural enemies, although further research is needed to confirm its lack of impact on the lacewing. Based on work by Ronda Koski and Melissa.

This observation in addition with the temporal coincidence with the maximum crawler movement table 4suggests that earwigs could be good candidates as biocontrol agents of WAA in Mediterranean areas. Agricultural Experiment Station Bulletin3— Privacy policy About Bugwoodwiki Disclaimers. The picture below shows a lanigerumm moth larva in an apple. The woolly apple aphid can reduce crop production, causing severe damage to young nursery trees or newly planted orchards.

Woolly apple aphid Eriosoma lanigerum Hausmann ecology and its relationship with climatic variables and natural enemies in Mediterranean areas.

Please review our privacy policy. Older apterous forms are more or less sessile, and, in California, alates apparently produce sterile sexual forms, so that infestation is confined to apple. Chemical Control Recommended chemical treatments against E.

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Woolly aphid (Eriosoma lanigerum (Hausmann)) – Apple Best Practice Guide

The influence of poison-free pest management on the fauna of arthropod pests and their natural enemies in an apple orchard at Havat Matityahu, Israel, during the seasons of Israel Journal of Entomology The body length of Eriosoma lanigerum apterae is 1. Resistance-breaking biotypes of the woolly apple aphid have recently been reported. The number of aphids captured on trees that were permanently taped and trees that were included in the evaluation every 4 weeks was log-transformed and analyzed by a non-parametric Wilcoxon test.

Thus, control measures should simultaneously address roots and canopy. Aphididae in West Virginia apple orchards.

Woolly Apple Aphid

In a much more specific insect growth regulator insecticide – tebufenozide – was introduced. Peak captures of crawlers moving through the canopy C were observed lanierum the warmer months of the year fig 1 ; however, with the multilateral approach we cannot confirm a clear correlation of canopy movement with the eriospma, and it may be more related to other variables not yet detected.

Parasitization was high on both branches and trunks in the orchard which had no regular pruning but was planted with clover. Average yield losses were 2.

In Massachusetts, Lanigeru, standard inspection involves examining five prunings per eriosma, on one tree per 3. Apple Best Practice Guide. In India, Gautam and Verma b observed apterous virginoparae undergoing four moults resulting in five instars. Mature trees are often little affected, even though levels of infestation are generally greatest in orchards over 25 years old Molinari, Although the aphelinid Aphelinus mali has been widely acclaimed as the most important natural enemy of this aphid species, a review of the literature, however, revealed a number of other natural enemies which should be considered in biological control or integrated pest management programs of Eriosoma lanigerum.

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Lufenuron reduced arboreal predator diversity, eroisoma this was in part due to decline in the populations of Orius vicinus Pirate bug, a generalist predator and Stethorus bifidus a coccinellid predator of Tetranychus linteariusa mite used to control Ulex europaeuscommon gorse.

Perennial apple canker also virtually disappeared. Heavily infested trees often have short, fibrous roots, and are stunted and sometimes killed. The parasitoid Aphelinus mali was introduced into New Lajigerum inand by had spread throughout New Zealand, almost eliminating the aphid. Galling of aerial plant parts can reach the size of a walnut and interfere with sap circulation.

Eriosoma lanigerum (ERISLA)[Overview]| EPPO Global Database

Biological Control The chalcidoid parasite Aphelinus mali has been introduced into many countries in attempts to control E. Elm is the primary host species and it appears that egg production on other species, such as apple trees, is rare and that eggs laid on apple always fail to hatch.

Thakur and Dogra cited E. Compounds in aphid saliva can cause deformations, blisters, splitting and cancer-like swellings of the bark on the trunk, branches or twigs.

Fuji was significantly the most infested cultivar during the period of study and it ranked as a highly susceptible cultivar. However the routine use of broad spectrum organophosphorus sprays for control of leafroller and codling moth subsequently disrupted this control. There is some debate about the host plant of E.