THE EFFECTS OF CERTAIN AGRI CULTURAL PRACTICES ON LEAFHOPPERS, APHIDS AND WHITEFLY INFESTING | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 12, Volume 32, Issue 12, December 2007, Page 10529-10545 PDF (952.82 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2007.221206 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Ola I.M. Hegab, | ||||
| Plant Prot.Dept.,Fac.Of Agric.,Zagazig Univ.Zaagazig,Egypt | ||||
| Abstract | ||||
| The present investigation aimed to study the effects of certain agricultureal practices (eggplant varieties ,Bonica ,Oneta & Balady and pepper plant varieties ,Orly ,Maor & Marconi )under the effects of different potassium fertilization levels (zero , 50, 100 and 200 kg potassium sulphate /feddan ), the effect of some chemical contents (Total protein ,carbohydrate and pH values) on the population density of different leafhopper , aphid and whitefly insects infesting the aforementioned plant varieties were also tested .The obtained results show pronounced differences in the population density of these insects under test as influenced by eggplant and pepper plant varieties and potassium fertilization rate. Chemical analysis of the used eggplant and pepper plant varieties under different potassium fertilization levels pointed out that the population density of the aforementioned homopterous insects was correlated with the chemical constituents (Total protein ,carbohydrate contents and PH values ) and also with quantity of yield. Therefore, it could be recommended that potassium fertilization along with the most suitable plant variety must be included in the integrated pest management programs. | ||||
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