Fumigant toxicity of some volatile oils belonging to Apiaceae plants aganist Tetranychus urticae Koch | ||
Journal of Pest Control and Environmental Sciences | ||
Volume 14, Issue 2, December 2006, Pages 83-89 PDF (133.74 K) | ||
Document Type: Original Article | ||
DOI: 10.21608/jpces.2006.460723 | ||
Author | ||
E. M. Bakr* | ||
Plant Protection Research Institute, Agricultural Research Center, Egypt | ||
Abstract | ||
The fumigant toxicity of five volatile oils belonging to Apiaceae plants were investigated against red spider mite, Tetranychus urticae Koch as a suggested approach for controlling mites in greenhouses. Results showed that vapor of cumin (Cuminum cyminum Linn.) seeds oil revealed the most potent efficiency against all tested stages of mites, its LC50 values were 3.4, 2.6 and 4.2 µl / l (oil / air), against adult females, protonymphs and eggs, respectively. Parsley (Petroselinum sativum L.) seed oil revealed poorest efficiency, its LC50 values were 9.4, 7.0 and 12.6 µl / l, against adult females, protonymphs and eggs, respectively. On the other hand, coriander (Coriandrum sativum L.) seeds, parsley (Petroselinum sativum L.) herb and coriander herb oils came in between. It was also observed that protonymphs was the most susceptible stage while eggs were the most resistant stage. A significant reduction in oviposition period and number of deposited eggs was observed for the survived mites, after exposing protonymphs to LC50 concentration of all tested oils. | ||
Keywords | ||
Fumigant toxicity; volatile oils; Apiaceae plants; Tetranychus urticae | ||
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