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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Distinguishing larval features in Earias insulana Boisd.

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Use of entomopathogenic nematodes against foliage pests. Damage is caused by the larvae, which cause bud and flower withering. Studies on Earias spp.

Legislation in some countries requires farmers to uproot and destroy harvested plants to ensure an adequate close season, but this is seldom enforced. Proceedings of a national symposium on pesticide residues and environmental pollution, Muzaffarnagar, India, October, Muzaffarnagar, India; Sanatan Dharm College, The eraias is dark and shiny and the final length is mm.

Use of a multi-component pheromone formulation for control of cotton bollworms Lepidoptera: Entomologische Berichten, 74 5: Economic injury level of cotton bollworms. The use of pheromones for mating disruption of cotton bollworms and rice stemborer in developing countries.

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Infestation of maize ears by the spiny bollworm, Earias insulana Boisd.

Archives of Insect Biochemistry and Physiology, 22 Earias species of cotton growing in the Ivory Coast: The role of predators and parasites in controlling populations of Earias insulanaHeliothis armigera and Bemisia tabaci on cotton in the Syrian Arab Republic. Initiation and evaluation of cotton bollworms control parameter on basis of counts of young larvae in the infested bolls. Zeitschrift fur Angewandte Entomologie, 79 3: Sex pheromone traps as a potential insulnaa of improving control programs for imsulana spiny bollworm, Earias insulana.

Secondary invasion by fungi and bacteria may conceal the E. The larvae usually bore deeply, filling the tunnel opening with excrement. Often the literature does not distinguish between Earias spp and other bollworms when estimates of damage are given. Shedding of fruiting bodies by bollworms in Asiatic cottons. Mating disruption of the spiny bollworm, Earias insulana Lepidoptera: Control of cotton bollworms in People’s Democratic Republic of Yemen. Tropical Pest Management, 33 4: Knowledge Bank home Change location.

Egg parasitoides reduce pest populations, but they are often killed by the extensive use of chemical pesticides. Control of three major bollworm pests of cotton in Pakistan by a single application of their combined sex pheromones.

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Bestimmungshilfe des Lepiforums: Earias Insulana

If you would like to, you can learn more about the cookies we use. High doses of nitrogen fertilizers have been found to increase infestation Reed, Assessment of avoidable loss darias cotton Gossypium hirsutum and G.

Trinidad, West Indies, It is most common in the Punjab, becoming less common further south. Adults show strong seasonal polymorphism, depending on the temperature. Studies on the growth of the population and distribution of Trichogrammatoidea sp.

Influence of cotton plant morphology on bollworms incidence. Effect of cutting the terminal shoots of cotton plants topping on rate of bollworm infestation, cotton yield and fibre quality. Esrias Journal of Entomology, 53 2: Notes on the insect parasites of some Lepidopteran pests in Tanzania.