不同粒徑之碳酸鈣粒子對桃蚜（Myzus persicae）的防治效果評估

礦物質微粒因顆粒細小，施用時可使昆蟲外骨骼受到其粒子刮傷或堵塞氣孔，進而影響活動力及改變行為、使蟲體脫水或造成死亡的防治效果。桃蚜（Myzus persicae）為經濟作物重要的害蟲，因大量施用合成性農藥進行防治，已對傳統化學農藥產生抗藥性，故本研究應用非農藥資材如碳酸鈣微粒來進行其相關防治效果之探討。以19.5%碳酸鈣微粒（約100奈米等級）以及95%一般碳酸鈣粉劑（微米等級），對桃蚜進行感受性測定。結果顯示桃蚜在施用碳酸鈣微粒後的死亡率呈劑量反應，LC_(50)為2,685 ppm，而施用一般碳酸鈣粉劑後，雖呈劑量反應但程度較低。本試驗結果顯示碳酸鈣微粒在桃蚜的防治上具有不錯的效果，未來可針對碳酸鈣微粒以及配合其他的防治方法開發新的藥劑，甚至擴大防治害蟲的種類。

關鍵字

桃蚜；感受性；碳酸鈣微粒

並列摘要

This article reports on mineral particles for the protection of plants against a tiny insect, peach aphid (Myzus persicae). The particles scratch the exoskeletons of insects creating wounds, they block their spiracles, reduce activity, and may result in severe dehydration of the insect causing death. Peach aphid is a significant pest of cash crops and is substantially pesticide resistant due to the frequent applications of chemical synthesized pesticides. Thus, non-chemical synthesized pesticides are increasingly being recommended for use in the field. In this study, we tested the susceptibility of peach aphid to two different grain sizes of calcium carbonate particles, a 19.5% calcium carbonate suspension concentrate (≈ 100 nm) and a 95% bulk calcium carbonate powder (＞ 1 μm). The application of both two mineral particles on infestations of peach aphids resulted in dose response relationships but the level was relatively low for the 95% bulk calcium carbonate powder. The LC_(50) were 2,685 and 93,036 ppm for the 19.5% calcium carbonate suspension concentrate and the 95% bulk calcium carbonate powder, respectively. We therefore concluded that the 19.5% calcium carbonate suspension concentrate was the most successful in controlling peach aphids. This study showed the potential for combining nano calcium carbonate particles with other control methods to create a new strategy for controlling small agricultural pests in the future.

並列關鍵字

Myzus persicae ； susceptibility ； calcium carbonate nanoparticles

國際替代計量

不同粒徑之碳酸鈣粒子對桃蚜（Myzus persicae）的防治效果評估

全文下載

主題瀏覽