EFFECT OF Bacillus thuringiensis AND DIMILIN ON THE DATE MOTH Ectomyelois ceratoniae ZELLER

Published in Scientific Papers. Series A. Agronomy, Vol. LIX
Written by Fatima Zohra BISSAAD, Farid BOUNACEUR, Bahia DOUMANDJI-MITICHE

The date moth is a pest that causes damage to the date palm and decline the quality walking of this production. For this, in this study, the 4th instar larvae of Ectomyelois ceratoniae three tests were performed. In the first, we tested a biopesticide Bacillus thuringiensis kurstaki only with 3 concentrations (0.25 g/0.5l, 0.50g/0,5l, 0.75 g/0,5l). In the second test, we added 1% of dextrin to each bacterial concentration. In the third test, 3 doses the Diflubenzuron (0.2 g/l, 0.4 g/l, 0.6 g/l of. The toxicity of B. thuringiensis showed a highly significant mortality on the added media and larval stages. Mortalities recorded with the addition of 1% dextrin were relatively higher compared to biopesticide only. Regarding the toxicity of Diflubenzuron, it should be noted that the percentages of mortality recorded for this growth regulator were not very important for the three doses tested. The dose D3 (0,6 g/l) had superior mortalities to those of doses D1 (0,2 g/l) and D2 (0,4 g/l).

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BISSAAD F.Z., BOUNACEUR F., DOUMANDJI-MITICHE B. 2016, EFFECT OF Bacillus thuringiensis AND DIMILIN ON THE DATE MOTH Ectomyelois ceratoniae ZELLER. Scientific Papers. Series A. Agronomy, Vol. LIX, ISSN 2285-5785, 208-213.


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