Evaluation  of Potential of biocide Paecilomyces fumosoroseus on controlling some  Homoptera insects

	Evaluation of Potential of biocide Paecilomyces fumosoroseus on controlling some Homoptera insects
Euphrates Journal of Agriculture Science
Article 1, Volume 6, Issue 2, 2014, Pages 182-194
Abstract
Laboratory studies were conducted in A l -Mussaib Technical Callage -Babylon brovence during 2013 to evaluate effect of Paecilomyces fumosoroseus in different concentration ( 10-1 _ 10-6) spore ̸ ml. on controlling some of homoptera insects (Bemisia tbaci ,Aphis gossypii and Ommitissus lybicas ) the results showed: The concentrations of the fungus effected on the rate death stages of non adult and adult stage for all insects . 10 -1 spor ̸ ml. showed high significant effect of others and high rate of death for nymphs and adults for B. tabaci reached 50,71 and 46.72 % respectively also gave high rate of death for nymphs and adults for A. gossypii reached 54.33and 54.00 % respectively also gaves high death for nymphs and adults for O.lypicus reached 55.86 and 53. 61 % respectively . While the concentration 10-6 gave less rate in death for nymphs and adults of B. tabaci reached 34.85 and 23.58 % respectivily and gave less rate in death for nymphs and adults A. gossypii reached 34.51 and 33.89 % respectively gave less rate in death for nymphs and adults O. lybicus reached 39.64 and 38. 55 % respectivily . The death rates of nymphs and adults of B. tbaci , A. gossypii and O. lybicas were increased according to the duration period after treatment , where the rate of death is low after one day and it increased after two days . المقدمة :

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