INFLUENCE OF BOTANICAL INSECTICIDE

Tark, A.M.; Mohamed, H.A.

	INFLUENCE OF BOTANICAL INSECTICIDE "Oxymatrine"
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 2, Issue 16, 2011, Pages 0-0
Authors
A.M. Tark; H.A. Mohamed
Abstract
The jasmini white fly Aleuroclava jasmini is considered to be one of the most important citrus insect pests at different regions of Iraq. According to the difficulties in controlling this pest by using conventional insecticides, this study was conducted to find the effects of the new botanical insecticide "Oxymatrine" on the biology of the jasmini white fly. The activity of this compound was tested on small citrus plantlet in the nursery. The results related to the effectiveness of Oxymatrine on the biology of jasmini white fly indicated clear influence on the immature stages such as the mortality rate which reached 64.5% in the first nymphal instars and decreased to 35.5 % and 31.5 % in the second and third nymphal instars respectively. There was significant effect on the number of the eggs laid by females which decreased during three days after treatment from 36.5 egg / female in the untreated to 12.5 egg / female. The insecticide showed miner though significant effect on the egg hatch ability as it decreased to 90.5% in comparison with 98.5% in the untreated control. Furthermore, the adult mortality on the treated plants reached 47.5% after three days of treatment. The adult longevity was also affected it decreased to 5.75 days for males and 14.2 days for females compared with 17.25 and 20.75 days respectively in the untreated control.

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INFLUENCE OF BOTANICAL INSECTICIDE "Oxymatrine"