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.
Other suggested cultural practices include deep ploughing Faseli, and close spacing of plants Abdel Fatah et al. However, field tests carried out in the Indian Punjab in to investigate the damage to different cotton varieties caused by several bollworms, including E. Journal of Insect Insklana, 3 2: Often the literature does not distinguish between Earias spp and other bollworms when estimates of damage are given.
Effect of photoperiod on different stages of the spiny bollworm, Earias insulana Boisd. This inzulana on a moth of the Nolidae family is a stub. There appears to be some confusion concerning the impact of the pest.
Journal of Agricultural Research Lahore24 4: Bolls are vulnerable up to 6 weeks of age Butani, Arshad M; Quayyoom MA, The spiny bollworm chronic-infestation cotton areas in Egypt. Biological Control A number of studies have investigated the potential of various parasitoids against Earias spp. Ovipositional preference and damage by spotted bollworm Earias fabia Stoll in cotton.
Larger bolls, weeks old, may not drop, but open prematurely and may be so badly damaged they cannot be harvested. Influence of cotton plant morphology on bollworms incidence. Nolidaede eerste insulaha in Nederland. Indian Journal of Ecology, 23 2: The cold winter in northern Iran also effectively keeps populations of E. Please consider upgrading your browser to the latest version or installing a new browser. It may raise up to six isulana generations in the Middle East, one per month in summer.
The head is dark and shiny and the final length is mm. Second brief resume of success achieved One or more of the features that are needed to show you the maps functionality are not available in the web browser that you are using.
Entomologie et Phytopathologie Appliquees, No. Zeitschrift fur Angewandte Entomologie, 79 3: Go to distribution map Earias vittellaspiny bollworm: Assessment of avoidable loss in cotton Gossypium hirsutum and G.
Distribution Table Top of page The distribution in this summary table is based on all the information available. Kehat M; Dunkelblum E, Biological, cultural and selective methods for control of cotton pests in Egypt.
Commonwealth Institute of Biological Control. Evaluation of some exotic parasites in biocontrol of cotton bollworms in Haryana. Parasitoids of Pectinophora gossypiella Lep.: Pheromone trap to monitor adult spotted bollworm, Earias vittella F.
The whole apex turns blackish-brown and dies. Studies on the varietal resistance of eaias to jassid and shoot and fruit borer. A comparison of thermal requirements and some biological aspects of Trichogramma evanescens Westwood and Trichogrammatoidea bactrae Nagaraja reared from eggs of the pink and spiny bollworms.
After depleting the finitial boll, the larvae move to other cotton plants, penetrating new bolls. It can be confused with Earias clorana and spiny bollworm Earias biplaga.
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Agricultural Research Review, 56 1: Possibilities of biocontrol of some pests of cotton in Pakistan. Mating disruption of the spiny bollworm, Earias insulana Boisduval Lepidoptera: Being a specialist, the size of its populations earisa restricted by the availability of various Malvaceae, especially cotton.
When fruiting starts, larvae move to the flower buds, tiny fruits and eventually the mature pods.
Relationship between spiny bollworm males attracted to pheromone traps and larval infestation in cotton bolls. The role of predators and parasites in controlling populations of Earias insulanaHeliothis armigera and Bemisia tabaci on cotton in the Syrian Arab Republic. Annals of Agricultural Science, Moshtohor, 28 3: Earias insulana Boisduval Taxonomic placing: Distribution Maps Top of page You can pan and zoom the map. Nerkar discusses the possibility that resistance might be found in wild relatives of okra such as Abelmoschus spp.