Influence of some organic and chemical fertilizers on the incidence of cowpea aphid, Aphis craccivora Koch [electronic resource].

Includes references.

Seven treatments of organic (peanut residue) incubated and non-incubated and chemical fertilizers (urea and potassium sulphate) were evaluated on the fertility of wingless females of Aphis craccivora Koch. Bean plants cultivated in loamy soil was treated with different fertilizers and the fecundity of A. craccivora was estimated 7 and 10 days after treatment. Obtained results indicate that the organic fertilizers when incubated became more effective than the non-incubated ones, led to increase the pest population on bean plants. While by using organic and chemical fertilizers separately, the fecundity of the pest decreased, while their mixture increased the aphid infestation significantly.

Summary in Arabic.

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