The effects of cultural management on the Date spider mite (Oligonychus afrasiaticus McG) infestation
Journal Title: International Journal of Farming and Allied Sciences - Year 2014, Vol 3, Issue 9
Abstract
The Date spider mite is one of the major pests of date palm in Iran. This research has been carried out in Khuzestan province for evaluating the effects of cultural practices on reducing the Date spider mite infestation. Incidentally cluster-sampling and survey research method applicated in this experiment. Sampling society divided to 30 plots then one sample was selected randomly in each plot. 15 trees were selected randomly in each plot and their infestations were evaluated. Different cultural management factors including tillage, fertilizing, irrigation, pruning, chemical control, bunch covering and bunch arrangement were evaluated questionairely. Correlation analysis had been done then management factors that had significant correlation with pest infestation used for multiple regression analysis. Based on correlation analysis intercropping, chemical control, weed control, tillage, bunch covering and bunch - remianed pruning had suitable effects on decreasing of the Date spider mite infestation. Multiple regression analysis showed that the effect of intercropping, weed control, chemical control, bunch covering, irrigation, tillage and bunch remain proning increased respectively and sum of effects decreased the pest infestation. The ultimate formula of the model is %infestation= 2.75-1.35cc-0.48wc-0.29brp- 0.26ic-0.16bc-0.17t(R2=66.21and Durbin-Watson statistic=1.49).Integrated effects of tree factors are better than the effects of them alone.
Authors and Affiliations
M. Latifian, AA. Rahnama and M. Amani
Keywords
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