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Effect Of Fertilization On Cotton Arthropod Pest Complex In Ninava Province | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 9, Issue 1, 2009, Pages 253-255 | ||
| Abstract | ||
| The results of the effect of fertilization on Cotton arthropod pest complex in AL- Rashidia region during the year 2002 showed that the kind and level of fertilization exhibit effect on clear the degree of cotton infestation by Empoasca sp, Bemisia tabaci, Aphis gossypii, Thrips tabaci and Tetranychus urticae. And the Fertilizer treatments caused a variation in a population density of a mentioned pest and the highest mean of Thrips tabaci, Empoasca spp, Bemisia tabaci Tetranychus urticae were found on cotton treated by Trace nutrients (Manganes and zine) and reched 4.11, 24.11, 16.22 and 2.33 Individual / 50 leaf, respectively. While the average mean of cotton pest in high level of nitrogen and trace nutrient with spray leaf fertilizer and spraying by leaf fertilizer reached 7.2, 6.57, 4.04 Individual / 50 leaf respectively in comparison with control treatment 6.55 Individual / 50 leafand spraying treatment showed a superior effect on reducing the pest population on cotton | ||
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