Chemical  and Biological control of two spotted red spider mite Tetranychus urticae(Koch.) On Smake cucumber

Mohamed Ridha Mehdi, Hayat; Ali Mehdi, Hussien; Hussein Mohammed, Najlaa

	Chemical and Biological control of two spotted red spider mite Tetranychus urticae(Koch.) On Smake cucumber
Kufa Journal for Agricultural Science
Article 1, Volume 9, Issue 2, 2017, Pages 56-68
Authors
Hayat Mohamed Ridha Mehdi; Hussien Ali Mehdi; Najlaa Hussein Mohammed
Abstract
The results of field study revealed that the density of two spooted red spi-der mites T. urticae in the observation periods had a significant differences, the highest maximum population densities were recorded within the periods of 1st and 3eal of March, the population were 31.2 Mite/Inch2, for both periods compared with other observed period. The analysis of Chemical pesticide ef-ficieus results showed that the pesticide Kumulus (after 72h of treatment ) had a significant effect in comparison with tested pesticides, which gave Mortalits percent of 57.74% in the adults of Mite flower, the experiment of Mites pathogens elucidated that both bioagents: Trichoderma harziianum and Beauveria bassiana had a positive effect in terms of biological contact of dust mites , their treatments led to a total mortality of 90% , for both patho-gen after 72 of treatment , compared with bacterial Suspension of Bacillus thurigienesis which led to a mortal its of 45.7% , The field experiment results showed that the chemical pesticide Ambactir decreased the population densi-ty of dust mites from 140 mites/inch2 to 36.7 mites/inch2after 14 day of treatment , without any differences from the pesticide Msulfur which de-creased the population from 80.4 mites/inch2 into 42.3 mites/inch2.
Keywords
Two spooted red spider mites; Smake cucumber; chemical control; Biological Control; pesticides

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