Seham A. Ezz El-Dein, H. Azouz, A. Mesbah, D. A. Abou El-Atta
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引用次数: 0
摘要
本研究于2018年在埃及贝尼苏伊夫省对大豆植株龙葵(Solanum melongen L.)上的荨麻叶螨(Tetranychus quticae Koch)进行了田间防治。对捕食性螨persimilis Phytoseiulus Athias-Henriot、(蜱螨目:蜱螨科)和杀螨剂(Sanmite) 20%WP进行了试验。结果表明,总平均螨数与对照差异显著(F= 75.37, P < 0.0001, EV = 87.6%),平均显著减少率(F= 56.31, P < 0.0001, EV = 84.07%)。以30个成年捕食者/大豆幼苗为单位释放的persimilis捕食性螨对大豆品种螨的平均减少率最高(83.84%),其次是(三螨)(78.66%)。在第2个试验中,20个水平和10个水平的捕食者/大豆幼苗放生,20个水平的捕食者/大豆幼苗放生效果最好,分别为72%和62.55%。结果表明,以30只成虫/大豆植株为单位,利用persimilp防治荨麻小蠊的效果优于使用20% (WP)的螨、三螨。
Efficacy of Predacious Mite, Phytoseiulus presimilis and the Acaricide, Sanmite In Controlling The Spider Mite, Tetranychus urticae on Soybean Plant at Beni-Suef Governorate, Egypt.
In this study, the evaluation of some control methods against the two-spotted spider mite, Tetranychus urticae Koch on Soybean plants Solanum melongen L. was carried out under field conditions at Beni-Suif Governorate, Egypt in season 2018.The predatory mite Phytoseiulus persimilis Athias-Henriot, (Acarina: Phytoseiidae), and The acaricide (Sanmite) 20%WP were tested. Obtained results showed that the total average number of the mite population was significantly different with control (F= 75.37, P < 0.0001 & EV = 87.6%), with the mean reduction percentage of significance (F= 56.31, P < 0.0001 & EV = 84.07%).The mean reduction percentage of the mite population on soybean plants cultivars using the released predatory mite P. persimilis at rate of 30 adult predators/soybean plants seedling was significantly the highest reduction (83.84%), followed by (Sanmite) (78.66%). The second trial included the released predator at levels 20 and 10 adult predators/soybean plants seedling and gave the highest reduction at the level of 20 adult predators/soybean plants seedling (72% and 62.55%). It could be concluded that the using P. persimilis at rate of 30 adult predators/Soybean plants for controlling T.urticae was superior than using The acaricde , Sanmite 20% (WP)