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Occurrence and seasonal abundance of the pink bollworm Pectinophora gossypiella (Saunders) infesting cotton in the North Delta [electronic resource].

By:

Ragab, M. G

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Language: English Summary language: Arabic Description: p.465-477Other title:

التواجد والوفرة الموسمية لدودة اللوز القرنفلية التي تصيب القطن في شمال الدلتا [Added title page title]

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Mansoura University Journal of plant protection and pathology, 2010 v. 1 (7) [electronic resource].

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In: Mansoura University Journal of Plant Protection and Pathology. a183494 2010.v.1(7)Summary: The present investigation was directed to study the Occurance and seasonal abundance of the pink bollwonn, Pectinophora gassypiella (sanders)in cotton fields during 2005 and 2006 at Kafr EL.$heikh and Dakahlia Governorates. The effect of prevailing climatic factors on· flight activity of using pheromone traps during two successive cotton season indicated that P.gossypie//a had thre~' generations with three sharp peaks on cotton during the period started early in June and extended till the end of September The combined effect of the prevailing temperature and relative humidity were responsib1e for (40.5 ,38 ) and (13.7, 11.1) at Kafr EL-Sheikh governorate of the changes in· amole moths popUlation during 2005 and 2006, mean while, Dakahlia Governorate responsible for (8.3,23.2) and (36.7, 10) of the changes of the population and moths respectively. Larval population and boll infestation started during early July and increased progressively till the end of the season.

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The present investigation was directed to study the Occurance and seasonal abundance of the pink bollwonn, Pectinophora gassypiella (sanders)in cotton fields during 2005 and 2006 at Kafr EL.$heikh and Dakahlia Governorates. The effect of prevailing climatic factors on· flight activity of using pheromone traps during two successive cotton season indicated that P.gossypie//a had thre~' generations with three sharp peaks on cotton during the period started early in June and extended till the end of September The combined effect of the prevailing temperature and relative humidity were responsib1e for (40.5 ,38 ) and (13.7, 11.1) at Kafr EL-Sheikh governorate of the changes in· amole moths popUlation during 2005 and 2006, mean while, Dakahlia Governorate responsible for (8.3,23.2) and (36.7, 10) of the changes of the population and moths respectively. Larval population and boll infestation started during early July and increased progressively till the end of the season.

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