predatory insect 中文意思是什麼
predatory insect
解釋
捕食性昆蟲-
These results implied that the reduction of predatory and parasitism natural control function should be one of the crucial factors to induce the outbreak of insect pest populations in rice fields applied with excessive nitrogenous fertilizer
這些結果表明天敵對害蟲自然控製作用的下降可能是稻田過量施用氮肥后害蟲種群增加的主要原因之一。 -
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 % )
藥劑試驗表明，氧化樂果、水胺硫磷、速撲殺等藥劑單用時效果不理想，但氧化樂果和水胺硫磷混配後效果有所提高，如果與機油乳劑配合使用，則效果更好，可達到90 . 93 % ，復配劑b 40 %氧化樂果（ 0 . 32 ） + 40 %水胺硫磷（ 0 . 48 ） + 4 . 5 %高效氯氰菊酯（ 0 . 15 ） +增效劑（ 0 . 05 ）的防效最好，達97 . 71 % ，是目前防治柑桔黑刺粉虱最好的藥劑之一。 -
The research result is following : the annual species richness index of studied forest plant community averaged 64. 688, the species diversity index was 2. 982. the proportion of every functional group of forest plant community is : herbaceous layer ( average is 68. 89 % ) > tall tree layer ( average is 15. 266 % ) > shrub layer. ( average is 15. 845 % ) the proportion of every functional group in forest insect communities is remarkably different, and the order of the proportion is herbivorous insect group ( average 0. 729 ) > predatory natural enemy insect group ( average 0. 136 ) > parasitical insect group ( average 0. 135 ). with seasonal change, the proportion of herbivorous and predatory insect group decreased obviously, while that of parasitical insect group increased on average by 147 %
研究結果如下：森林植物群落種的全年物種豐富度指數平均為64 . 688種，多樣性指數為2 . 982森林植物群落內各功能類群物種所佔比重依次為：草本層（平均為68 . 89 ） >喬木層（平均為15 . 266 ）灌木層（平均為15 . 845 ） 。森林昆蟲群落中，全年各功能類群所佔比重以植食性昆蟲類群為最大，平均佔0 . 729 ；捕食性昆蟲類群次之，平均佔0 . 136 ；寄生性天敵類群為最小，平均為0 . 135 。
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