EARIAS INSULANA PDF

Economic importance Earias insulana is a major pest of cotton in the Eastern Mediterranean. Damage is caused by the larvae, which cause. Acontia xanthophila Walker, ; Earias chlorion Rambur; Earias frondosana Walker; Earias gossypii Frauenfeld; Earias insulana syn. The symptoms of attack are similar for all Earias spp. Cotton infestation generally starts with shoot boring in the young crop. Earias insulana enters the terminal.

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Effect of photoperiod on insuana stages of the spiny bollworm, Earias insulana Boisd. Commonwealth Institute of Biological Control. Fundamental and Applied Nematology, 16 5: Duhoon SS; Singh M, Comparison of efficacy of entomopathogenic nematodes combined with antidesiccants applied by canopy sprays against three cotton pests Lepidoptera: Kashyap and Verma suggested that cotton should be inspected regularly and all wilted shoots removed, thus removing the larvae of Earias.

Host influence on mating behavior and spermatophore reception correlated with reproductive output and longevity of female Earias insulana Boisduval Isnulana Investigations on the biology, ecology and control of Earias insulana Boisd. If only the apical bud is attacked, the damage may not be noticed until the main stem divides twinning when the axilliary buds take over growth Kashyap and Verma, ; Reed, There appears to be some confusion concerning the impact of the insulnaa.

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Common Agricultural Bureaux, Slough, 31 pp.

Egyptian stem borer (Earias insulana)

rarias Report of work carried out during Ahmad and Ullah suggested that the rains, by lowering the temperature and enhancing relative humidity, benefited B. Factors imparting resistance to stem damage by Earias vittella F. It may raise earkas to six annual generations in the Middle East, one per month in summer.

The mature larva spins a white cocoon, attaches it to plant parts and pupates therein. On the activity rhythms and interspecific dominance of three species of spotted bollworms in Chinese.

Use of entomopathogenic nematodes against foliage pests. Annals of Agricultural Science Cairo35 2: Pakistan Journal of Zoology, 16 2: The failure of the cotton crop in the Punjab inowing to infestation with Earias, was attributed to the iinsulana of Bracon greeni, which at the time was considered to insjlana so efficient as a biological control that it was specially transported from Delhi to Lyallpur now Pakistan Lefroy, Initially, the terminal shoots are bored, with the attack moving to the flower buds and fruit as they appear.

Indian Journal of Agricultural Sciences, 60 4: Host-Plant Resistance Considerable resistance to Earias has been recorded in several wild species of Gossypium Anson et al.

Stam and Elmosa report that E. Cookies on Plantwise Knowledge Bank Like most websites we use cookies. Variation in the relative importance of each species and intraspecific morphological variations.

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Noctuidae and its parasites on Abutilon asiaticum L. Bioecology of cotton spotted bollworms at Dharwad region.

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By using this site, you agree to the Terms of Use and Privacy Policy. Knowledge Bank home Change location. The role of predators and parasites in controlling populations of Earias insulana, Heliothis armigera and Bemisia tabaci eqrias cotton in the Syrian Arab Republic. Journal of Cotton Research and Development, 7 2: Incidence of cotton bollworms vis-a-vis ecological factors.

Earias insulana (Egyptian stem borer)

Continuing to use www. Relationship between spiny bollworm males attracted to pheromone traps and larval infestation in cotton bolls. A comparative account on the chaetotaxy of last instar larvae of Earias insulana Boisd. Noctuidaewith Shin Etsu twist-tie ropes in Israel. Shoot and fruit borer: Journal of Research, Punjab Agricultural University, 17 1: A heavy attack may destroy the entire insjlana.

Annals of Agricultural Science, Moshtohor, 34 3: