稻穀倉庫害蟲防治改進試驗

Studies on the Improved Control Measures of Stored Grain Insects

林欉(Tsung Lin)

《中華農業研究》 30卷1期 (1981/03) Pp. 57-62

https://doi.org/10.29951/JARC.198103.0008

摘要

在水泥倉庫內袋裝稉稻貯藏經2或3個月後調查發現有6種害蟲，其相對密度爲米象(Sitophilus oryzae Linn.)3.8~91.2%，穀蠹(Rhizopertha dominica Fabr.)0.9~51.4%，角胸粉扁蟲(Laemophloeus ferrugineus (Steph.)5.9~36.2%，麥蛾(Sitotroga cerealella Oliv.)1.2~10.3%，擬穀盜(Tribolium castaneum (Herb.))0.3~7.2%及暹羅榖盜(Lophocateres pusillus Klug.)0.6~4.6%。本試驗防治方法爲使用好達勝片劑(Phostoxin)以1片／M3用藥量密閉燻蒸5天，經20天再以相同單位用藥量進行第二次燻蒸處理，即可達到經濟而有效之治蟲效果。如果防治二次每次用0.5片／M3，或一次用藥量2片／M3燻蒸處理者未能殺死全部害蟲，尚有部份米象之卵粒仍可發育爲成蟲，因而達不到理想之治蟲效果。

並列摘要

The composition and relative intensity of insect pests found in bagged rice stored in cement storehouse for 2 or 3 months, were rice weevil (Sitophilus oryzae Linn.) 3.8-91.2%, lesser grain borer (Rhizopertha dominica Fabr.) 0.9-51.4%, rustred grain beetle (Laemophloeus ferrugineus (Steph.)) 5.9-36.2%, angoumois grain moth (Sitotroga cerealella Oliv.) 1.2-10.3%, red flour beetle (Tribolium castaneum (Herb.)) 0.3-7.2% and siamese grain beetle (Lophocateres pusillus Klug.) 0.6-4.6%. To fumigate stored grains twice with phostoxin at the rate of 1tablet/M^3 for 5 days at an interval of 20 days. could control these insects sighificantly and economic. ally To fumigate at the rate of 0.5 tablet/M^3 twice, ro 2 tablets/M^3, once still allowed some eggs of the rice weevil to survive, so both measures were not practical.