pin-na
連日高溫下，我家外頭的垃圾桶周遭開始產生了等比級數成長的"pin-na"(台語），這些1-2mm大小的小飛俠會飛到室內，也不會叮你、也不會咬你，但是會一直在你眼前飛來飛去，看了就很討厭，垃圾總不可能每天倒，該想個好辦法來對付這些「不速之客」…
查了一下網路：
http://www.uky.edu/Ag/Entomology/entfacts/struct/ef621.htm
FRUIT FLIES
By Mike Potter, Extension Entomologist
University of Kentucky College of Agriculture
 | If you have been seeing small flies or gnats in your kitchen, they're probably fruit flies. Fruit flies can be a problem year round, but are especially common during late summer/fall because they are attracted to ripened or fermenting fruits and vegetables. |
Once a structure is infested with fruit flies, all potential breeding areas must be located and eliminated. Unless the breeding sites are removed or cleaned, the problem will continue no matter how often insecticides are applied to control the adults. Finding the source(s) of attraction and breeding can be very challenging and often will require much thought and persistence. Potential breeding sites which are inaccessible (e.g., garbage disposals and drains) can be inspected by taping a clear plastic food storage bag over the opening overnight. If flies are breeding in these areas, the adults will emerge and be caught in the bag.(好吧！看來還是要提高倒垃圾的頻率…）
After the source of attraction and breeding is eliminated, a pyrethrum-based, aerosol insecticide may be used to kill any remaining adult flies in the area.
| A better approach, however, is to construct a trap by placing a paper funnel (rolled from a sheet of notebook paper) into a jar which is then baited with a few ounces of cider vinegar(蘋果醋). Place the jar trap(s) wherever fruit flies are seen. This simple but effective trap will soon catch any remaining adult flies which can then be killed or released outdoors. |  |
哈哈，真有趣！make a "fruit fly trap"! 看看是不是真的有效再跟各位報告了…
