Evaluation of the Effect of Integrated Control of Sweetpotato Weevil, Cylas formicarius Fabricius, with Sex Pheromone and Insecticide

利用性費洛蒙與殺蟲劑綜合防治甘藷蟻象效益評估

黃振聲(Jean-Sheng Hwang) ； 洪巧珍(Chau-Chin Hung)

《中華昆蟲》 11卷2期 (1991/06) Pp. v+141-146

https://doi.org/10.6660/TESFE.1991015

摘要

Experiments were conducted in 4 fields in Taichung Prefecture of Taiwan to evaluate the integrated effect of sex pheromone and insecticide in the control of sweetpotato weevil (SPW), Cylas formicarius Fabricius. The results show that the use of pheromone-baited traps placed at a density of 4 traps/0.1 ha reduced 65% of storage root damage caused by SPW compared with that of the untreated control. Use of pheromone-baited traps in combination with preplant application of Dursban at 2.25 kg a.i./ha reduced storage root damage by 75%. These effects are comparable to that from 2 applications of Dursban, one before planting and another at the time of earthing-up. Correlation analysis revealed that the best criterion for evaluating the loss of sweetpotatoes caused by SPW was the number of damaged storage roots.

關鍵字

sweetpotato ； sweetpotato weevil ； Cylas formicarius ； sex pheromone ； mass trapping ； integrated pest management

並列摘要

本研究於台中地區四塊各約1公頃甘藷田，利用性費洛蒙配合殺蟲劑對甘藷蟻象進行綜合防治效益評估。結果顯示每分地設置四個性費洛蒙誘蟲器，可減少甘藷被害率達65%；放誘蟲器並於作畦時施用陶斯松粒劑2.25kg a.i. /ha一次，可減少甘藷被害率75%；前述處理效果與於作畦及中耕培土時共施藥二次的防治效果（84.5%），並無顯著差異。依相關性分析顯示，調查蟻象為害程度時，可僅以藷塊被害率做為評估標準；蟻象性費洛蒙誘蟲器亦可用來偵測蟻象於甘藷田的為害狀況。

並列關鍵字

甘藷蟻象 ； 性費洛蒙誘殺 ； 綜合防治 ； 效益評估