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Evaluation the efficacy of two varieties of bacteria Bacillus sphaericus ,Bacillus thuringiensis var. israelensis On the control of mosquito Culex quinquefasciatus Say (Diptera:Culicidae) | ||
| journal of al-qadisiyah for pure science(quarterly) | ||
| Article 1, Volume 15, Issue 2, 2015, Pages 1-12 PDF (0 K) | ||
| Author | ||
| Baraa Jalil saeed | ||
| Abstract | ||
| Abstract: the current research evaluation the efficacy of two varietes of bacteria Bacillus sphaericus and Bacillus thuringiensis israelensis and using vital factor to struggle mosquitoe Cx. quinquefasciatus, due to the impact of concentration of bacterial suspended and secondary metabolites in the larvae of mosquito of varieties, while there was no any destruction to the role of eggs and pupae and adults. Which recorded the higher rate of destruction for the larva 93.33% when treating the larva the first instar with concentration 1×106 spore / ml of bacterial suspension of Bacillus sphaericus, while the the lower rate of destruction 66.66% concentration of 1×103 spore/ml of bacterial suspension of Bacillus thuringiensis israelensis while the highest rate of destruction 90% while treating the first instar larvae concentrating of 3×106 spore/ml after 120 hours, while the lower rate of destruction 63.33% at the concentration 3×103 spore/ml at same period, for the respect of the effect of the concentration of secondary metabolic products the highest rate of destraction for the larvae of both species of bacteria mentioned 96.66% at the concentration of 100% after 72 hours of treatment, the lower rate of destruction reach for both species 66.66% at the concentration 25% in same period . | ||
| Keywords | ||
| thuringiensisisraelensis; Bacillus sphaericur; quinquefasciatus; Bacill | ||
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