瓜實蠅之非農藥防治法

A Nonpesticide Method for the Control of Melon Fly

方敏男(Min-Nan Fang)

《臺中區農業改良場特刊》 16號 (1989/06) Pp. 193-205

https://doi.org/10.29563/ZHWHGX.198906.0003

摘要

瓜實蠅為瓜類主要害蟲，對於各發育期之苦瓜及絲瓜皆可產卵為害，為害率可高達90%，目前推荐之防治方法為滅雄處理及藥劑防治，此兩種方法不但效果不彰，而且藥劑防治對於每1至2天即需採收一次之苦瓜及絲瓜之農藥殘留問題甚為可慮。使用套袋法，每2至3天巡視瓜園一次，當發現苦瓜瓜果達3~4公分時即以雙層紙袋或雙層舊報紙袋實施套袋，而發現絲瓜瓜果達5~6公分時即以白色紙袋或單層舊報紙實施套袋，不但可以提高品質，並增加苦瓜之產量及淨收益達45%及58%，絲瓜分別達40及34%外，且無農藥殘留之虞。

並列摘要

Melon fly is the main injurious insect to melons. It may lay egg to all stages of the crops of bitter gourd and sponge gourd, usually reaching to 90% in damage rate. Utilization of attractants to trap the male insect and chemical spray are the two currently recommended methods to control the insect. However, these methods are not only quite limited in effect, but also unsuitable to the crops continuously harvesting in every 1-2 days due to the problem of chemical residue. Bagging the fruits of bitter gourd at the stage of 3-4 cm fruit length and sponge gourd at the stage of 5-6 cm fruit length with two layer paper bag at the interval of every 2-3 days greatly promoted the fruit quality, and the yields and net income respectively increased to 45 and 58% in bitter gourd, and 40 and 34% in sponge gourd. Besides it has the advantage of low pesticide residue.