Utilization intercropping in the reduction of the two spotted spider mite Tetranychus urlicae KOCH, infesting kidney bean [electronic resource].

Includes references.

In Menoufiya Governorate, a field experiment was conducted as a completely randomized design, in spring period during the two successive season 2010 and 2011 using Kidney bean plantation. four different treatment were conducted as :Kidney bean plants alone in addition to the same plant intercropped on Mint, Fennel and Black cumin. The main crop, Kidney bean, plants were sown on 4 different spaces i.e.10, 20, 30 and 40cm. Kidney bean plants were investigated for abundance of the different stages of the two spotted spider mite Tetranychus urticae Koch :eggs, immatures and adults, as wells their predators Phytosiulus persimilis Athias-Henriot Euseius scutaulis Athias-Henriot (Family: Phytoseiidae). Inspection and investigation was conducted every two weeks: 15,30,45,60,75 and 90 days from sowing. Results showed that the mean values of T. urticae during the growth period clearly increased . in the space of 10em between plants while the reverse trend occurred with the space 40cm. Results showed also, there was a significant difference between the mean numbers of eggs, immatures and adults of Tetranychus urticae Koch infesting Kedney bean in different spaces during sowing.

Summary in Arabic.

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