Insecticidal Eficacy of Clove (Syzygium aromaticum) (L) (Merr. & L. M. Perry) against Rice Weevils (Sitophilus oryzae) (L) (Curculionidae, Coleoptera)

丁香（Syzygium aromaticum）（L）（Merr. & L. M. Perry）對水稻象鼻蟲（Sitophilus oryzae）（L）（Curculionidae, Coleoptera）之殺蟲效力

Dipak Khanal ； Anil Chandra Neupane ； Pushpa Pandey ； Anjana Poudyal ； Sulochana Shrestha ； Iksha Tumbahangphe ； Diksha Sharma ； Lekhnath Kafle

《台灣昆蟲》 39卷1期 (2019/02) Pp. 29-35

https://doi.org/10.6662/TESFE.201902_39(1).003

摘要

A wide range of postharvest pests, including rice weevils (Sitophilus oryzae), threatens wheat production in Nepal. This study was conducted to assess the efficacy of clove (Syzygium aromaticum) against rice weevils in Nepal under laboratory conditions. Seven amounts of clove (4, 2, 1, 0.5, 0.25, 0.12, and 0 g of clove bud/kg of wheat seed) were tested on three varieties of wheat (Bhrikuti, Vijaya, and NL971), and the dosage-mortality effect of clove bud was investigated. The mortality of rice weevils was indirectly correlated with the amount of clove bud added to all three varieties of wheat. The results suggest that clove buds have considerable pesticidal effects on rice weevils and can be considered as an alternative tool to control rice weevils in wheat during postharvest storage.

關鍵字

clove ； LD_(50) ； LT_(50) ； rice weevil ； wheat

並列摘要

尼泊爾的小麥生產受到包括水稻象鼻蟲（Sitophilus oryzae）在內的各種採後害蟲的威脅。本研究旨在評估丁香（Syzygium aromaticum）在實驗室條件下對尼泊爾水稻象鼻蟲的致死功效。以7個不同量的丁香芽（4、2、0.5、0.25、0.12、和0 g/kg小麥種子）及在三種品種（Bhrikuti，Vijaya和NL971）小麥上測試結果，三種小麥品種的水稻象鼻蟲的死亡率均與丁香芽數量呈間接正相關，顯示丁香芽對水稻象鼻蟲有顯著的殺蟲作用，可以作為採後貯藏期間防治小麥水稻象鼻蟲的替代方法。

並列關鍵字

丁香 ； LD_(50) ； LT_(50) ； 水稻象鼻蟲 ； 小麥