乳化大豆油對棉蚜（同翅目：常蚜科）之致死效果

Aphicidal Efficacy of Emulsified Soybean Oil against Aphis gossypii Glover (Homoptera: Aphididae)

余志儒(Jih-Zu Yu)

《台灣農業研究》 58卷4期 (2009/12) Pp. 265-272

https://doi.org/10.6156/JTAR/2009.05804.03

摘要

大豆油及其乳化劑對棉蚜的致死試驗於室內25℃±1℃下進行。結果顯示大豆油乳化液確有殺死棉蚜(Aphis gossypii Glover)的效果，大豆油對棉蚜的LC50與LC90分別為1.09-1.28與3.96-5.78mL/L。乳化劑亦具殺蚜效果，可以0.25:1的比例與大豆油混合，其效果與高用量的2:1差異不顯著。本試驗比較Sigma-Aldrich Co之R&D級與市售3種品牌的大豆油對棉蚜之致死效果，四者間差異不顯著。由此可知以Tween 80與Span 80乳化的食用大豆油用於防治棉蚜具有潛力。

關鍵字

棉蚜 ； 大豆油 ； 乳化劑

並列摘要

A study on the mortality of cotton aphid (Aphis gossypii Glover) treated with soybean oil and its emulsifier was conducted in laboratory under 25℃±1℃. Results revealed that the aphicidal efficacy of soybean oil emulsion was available. The LC50 and LC90 of soybean oil were 1.09-1.28 and 3.96-5.78mL/L, respectively. The emulsifier was also effective against cotton aphid. The emulsifier and soybean oil in the ratio of 0.25 to 1 had no significant difference from 2:1, and there was no difference among Sigma-Aldrich R&D grade and 3 market products of soybean oil comparing their aphicidal efficacy. However, the edible soybean oil emulsified with Tween 80 and Span 80 is potentially preventable for A. gossypii control.

並列關鍵字

Aphis gossypii ； Soybean oil ； Emulsifier