The use of asemic pesticide and black pepper extract to control the leafminer Liriomyza trifolii on bean and natural enemies of insect

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Research Paper 01/03/2018
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The use of asemic pesticide and black pepper extract to control the leafminer Liriomyza trifolii on bean and natural enemies of insect

Sawsan K. Flaih, Mohammed S. Manjy, Hanaa H. Al-Saffar, Hind I. AL-Khazraji, Amal H. Abdullah
J. Bio. Env. Sci.12( 3), 251-254, March 2018.
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This study was performed in a bean field belongs to Plant Protection Department at College of Agriculture/University of Baghdad for the period between the 15th of March to 20th of June, 2017. Results shown the fluctuation of the leafminer population density when the highest population density was 4. 1mines per leaf in the 22nd of May. The lowest population density was 0.6mine/leaf in the 4th of April. Asemic pesticide scored highest mortality percent which was 90% on larvae two weeks after treatment. Whereas it scored 30% mortality on larvae one week of application. Lower mortality percentages were scored on leaf miner pupae which were 63.3 and 16.66% one and four weeks of treatment, respectively. Black pepper extract treatment scored 20% highest mortality percent on larvae and pupae one and 3days of treatment, respectively. While it scored the lowest mortality percentages on larvae and pupae which were 0.33% and 10% one week after treatment. A hymenopteran parasite belonged to the family Eulophiodae was reported during the study period.


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