Effect Study of Water and Alkaloid crude extracts from leave Dodonaea viscosa  linn(Sapinadacae)on some biological aspects of Mizus persicae (Homoptara:aphidae)

	Effect Study of Water and Alkaloid crude extracts from leave Dodonaea viscosa linn(Sapinadacae)on some biological aspects of Mizus persicae (Homoptara:aphidae)
Magazine of Al-Kufa University for Biology
Article 1, Volume 1, Issue 1, 2009, Pages 157-162
Abstract
The present study revealed that water and Alkaloid crude extracts from leave plant Dodonaea viscosa the effect on some biological aspects of Mizus persicae. Mortality rate of various nymph stages were also increased with the increasing extract concentration . Mortality rate of the nymph stages (first , second , therd , fourth and adult) in boiling water was (5.6, 5.3 , 4.8 , 0 ,0 ,%) respectively in the control treatment compared with (82.3,, 78.2, 75.1, 72.4 , 63.6 %) respectively in 20 mg /ml concentration.While mortality rate of the nymph stages (first , second , therd , fourth and adult) in cold water was(68.4 , 66.3 ,63.3 , 59.1 ,52.7 %) respectively in same concentration . mortality rate of the nymph stages (first , second , therd , fourth and adult) in Alkaloid crude extracts (90.90.90.90.90%) respectively in 20 mg /ml concentration compared with control treatment.The period of development of immature stages was (7) days in 5 mg /ml concentration compared to ( 5.6) days in control coefficient , and the reproductivity decreased to (17.3) nymph / female in concentration of 5 mg /ml compared to 62 nymph /femal in control coefficient .

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