黑刺粉虱 meaning in Chinese

aleurocanthus spiniferus quaintance

Developmental grade of pupae and eggs of white fly , aleurocanthus spiniferus , in relation to its optimum control period of the pest in tea garden
茶黑刺粉虱蛹和卵的发育分级及与其防治适期的相关性
Its main natural enemies were chilocorus kuwanae silvestri , chrysopa spp . , spiders , predatory mites , amitus kerperidum silvestri and prospaltella sp . . the single use of omethoate , optunal or methidathion , etc . was not satisfactory to keep this insect pest under control , the control effect of combined use of omethoate and optunal was somewhat better than their single use , and was much better ( 90 . 93 % ) as putting a few emulsified machine oil into this combination , while the use of mixture b , 32 % of 40 % omethoate + 48 % of 40 % optunal + 15 % of 4 . 5 % - cypermethrin + 5 % of synergist , got most desirable effect ( 97 . 71 % )
药剂试验表明，氧化乐果、水胺硫磷、速扑杀等药剂单用时效果不理想，但氧化乐果和水胺硫磷混配后效果有所提高，如果与机油乳剂配合使用，则效果更好，可达到90 . 93 % ，复配剂b 40 %氧化乐果( 0 . 32 ) + 40 %水胺硫磷( 0 . 48 ) + 4 . 5 %高效氯氰菊酯( 0 . 15 ) +增效剂( 0 . 05 )的防效最好,达97 . 71 % ,是目前防治柑桔黑刺粉虱最好的药剂之一。