Basic Science Sector

Citation:

ahmed, S. S., and M. mohamed el-mogy, "Field Evaluation of Some Biological Formulations Against ThripsTabaci (Thysanoptera: Thripidae) in Onion", World Applied Sciences Journal, 2011.

Abstract:

Two biological formulations, neem (Nimbecidine) &Beauveriabassiana (Bio-Power) and jojoba oil were used for control onion thrips, T. tabaci in onion field. Also, vegetative characteristics and yield and germination of onion seeds were considerable. The evaluation was conducted in onion field at 2007/2008 season and repeated at 2008/2009 season. Two rates for each formulation, oil and a recommended rate of Malathion (reference insecticide) were sprayed three times for each season while the control was sprayed with distilled water. The first and second sprayings were carried out during the growing period while the third spray was during the flowering period. Results showed that all tested products revealed significant reduction in thrips populations on both growing and flowering periods. Bio-Power exhibited the highest effective on the growing period (2nd spray) followed by jojoba oil, Nimbecidine and Malathion at 2007/2008 season, while Malathion was the highest with the same spray on the growing period followed by jojoba oil, Nimbecidine and Bio-Power at 2008/2009 season. On the flowering period, Nimbecidine and Malathion were more effective on thrips population at 2008/2009 season as well as they gave the highest significant seed yield. Vegetative characteristics and seed germination were also improved. In conclusion, it can be use Bio-Power and Jojoba oil on growing period and Nimbecidine on flowering period in integrated pest management of onion crop.

Notes:

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