- 期刊
- OpenAccess
探討葡萄推薦藥劑對薊馬之防治成效
Exploring the Control Effects of Recommended Pesticides on Grape Thrips
摘要
在臺灣，薊馬為冬果葡萄生產之重要害蟲，通常於催芽後至幼果期發生，造成葉片萎縮、花穗捲曲、果梗褐化及果皮傷疤等危害，嚴重影響果樹發育與果品價值。本研究於彰化縣大村鄉葡萄產區進行試驗，於8－10月進行冬果葡萄田間薊馬藥劑防治試驗，發現賜諾特、覆滅蟎及賜派滅等藥劑對葡萄薊馬防治效果表現良好，防治率最高可達100%、91.71%及69.58%；益達胺、亞滅培及克凡派則防治效果不佳，防治率為-138.77%、-305.36%及41.80%，其中施用亞滅培後，薊馬族群數量明顯比未施藥的控制組還多。阿巴汀防治效果較不穩定，於2017年防治率為76.94%，2020年則僅有44.24%。2017年亦針對果串受害程度進行調查，結果顯示施用賜諾特、阿巴汀及克凡派後，果串受害率分別為6.46%、9.26%及34.49%，控制組則為52.97%。由研究結果顯示部分藥劑對本地區的葡萄薊馬防治效果並不理想，且建議農民在藥劑防治上應輪替用藥，注意害蟲抗藥性發展的控管。
並列摘要
In Taiwan, thrips are important pests in winter fruit grapes which usually occured after germination to the young fruit stage. They can cause leaf shrinkage, flower spike curling, fruit stem browning and peel scarring, and affect these grapes development and their value seriously. This study conducted a field chemical control experiment on grape thrips in Dacun, Changhua. It was found that the pesticides such as Spinetoram, Formetanate, and Spirotetramat show good control effect of grape thrips, the control rates were 100%, 91.71% and 69.58%. In the other way, the control effects were not good of Imidacloprid, Acetamiprid, and Chlorfenapyr, the control rates were -138.77%, -305.36%, and 41.80%; the thrips population was even higher than that of the untreated control group after the administration of Imidacloprid and Acetamiprid. The control effect of Abamectin was relatively unstable, the control rate was 76.94% in 2017, but it was only 44.24% in 2020. In 2017, a survey was also conducted on the injured rate of grape bunches, and the results showed that the injured rates of grape bunches were 6.46%, 9.26%, and 34.49% after the application of Spinetoram, Abamectin, and Chlorfenapyr, and the untreated control group was 52.97%. From the results of the research, it showed that that some pesticides are not effective for the control of grape thrips in this area. It is recommended that farmers should take turns in using pesticide and pay attention to the control of pest resistance development.
延伸閱讀
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