首页> 外文期刊>Annals of Plant Protection Sciences >Bioassay of Pochonia (Verticillium) lecanii against tea aphid and red spider mite and their field density in Manipur.
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Bioassay of Pochonia (Verticillium) lecanii against tea aphid and red spider mite and their field density in Manipur.

机译:曼霍普尔邦(Phoonia)茶蚜和红蜘蛛生物的化验(黄萎病)(黄萎病) lecanii 及其田间密度。

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摘要

The mycoinsecticide, Pochonia (Verticillium) lecanii was tested against tea aphid and red spider mite at 3 concentrations viz., 0.25%, 0.50% and 0.75% and all the three concentrations were found effective against red spider mite (RSM), Oligonychus coffeae and aphid (Toxoptera aurantii) in a dose dependent manner. Field studies showed that aphids attacked tea from March to October with maximum incidence during September (160 aphids/5 cm length of tea twig) in the tea fields of Manipur, whereas red spider mite infests during March-April with the peak density of 90 mites/foliage.
机译:测试了三种浓度 viz对茶蚜和红蜘蛛的杀真菌剂 Pochonia (黄萎病) lecanii 。 ,0.25%,0.50%和0.75%,并且发现这三种浓度均对一定剂量的红蜘蛛(RSM),金丝桃科和蚜虫( Toxoptera aurantii )有效依赖方式。田间研究表明,蚜虫在3月至10月袭击茶,在曼尼普尔河茶田中,发病率最高(9月为160蚜虫/ 5厘米长),而红蜘蛛螨在3月至4月期间出没,峰值密度为90螨。 /叶子。

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