Avermectin photodegraded very quickly on glass surface.The photolytic half-life was 7.35 and 9.64h under 254nm ultraviolet radiation(UV)and sunlight respectively.

• 阿维菌素在玻璃表面上降解迅速，在254nm光照下光解半衰期仅为7.；35h，在太阳光下的半衰期为9