EFFECTS OF ORGANIC, SYNTHETIC AND BIOFERTILIZER SOURCES ON WHITEFLY Bemisia tabaci (Genn.) INFESTATION ON POTATO PLANTS | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 3, Volume 32, Issue 7, July 2007, Page 5641-5651 PDF (776.31 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2007.219699 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Hafez A. El-kady, | ||||
| Faculty of Agriculture at Damietta, Mansoura University, Egypt. | ||||
| Abstract | ||||
| The effects of organic, synthetic and biofertilizers on abundance of B. tabaci and predatory insects on potato plants were evaluated during 2003 and 2004. The application of either organic or synthetic fertilizers were found to increase pest populations on potato. However, there were lower populations of whitefly with the biofertilizer treatment. While, predator populations were larger on potato plants with high whitefly populations in the synthetic fertilizer than in the organic fertilizers treated plots. On the other hand, biofertilizer application reduced whitefly population and in the same time gave the highest tuber yield. Obtained data suggested that the use of biofertilizer may be recommended as a substitute for chemical fertilization to reduce whitefly infestation and increase potato yield and quality. | ||||
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