Efficiency of releasing of trichogramma evanescens west as compared with lannate insecticide for controlling the cowpea pod worm ,Etiella zinckenella ( Treit) i n soybean fields in middle and Upper Egypt [electronic resource].

Includes references.

This study was carried out in three successive seasons (2000,2001 and 2002,respectibvelly) at Mallawi (Minia), Sids (Beni-Suef)and EI-Kharga (New Valley) regions to evaluate the efficiency of the egg-parasitoid, Trichogramma evanescens as a biological control tool , at rate of 0 , 10000 , 20000, 30000 wasps/fed ., compared with Lannate insecticide at 300 and 150 g/ fed. , against the bean pod borer, Etiella zinckenella Treit. in soybean fields. The results indicated that the soybean plants treated with the egg- parasitoid and insecticide significantly reduced the percentage of infesed soybean pods , seeds and resulted in a higher seed yield the highe eggparasitoid or insectcide was the lower infestation obtained.The highest rate of parasitoid (30,000 wasps/ fed.) or Lannate 90% (300g /fed.)were highly effective in decreasing the pod infestation.Highly increasing in seed yield I fed. by (34.6, 38.6, 30.0%) and (36.4, 39.1, 30.9 %) during the in three season, respectively

Summary in Arabic.

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