用农药“乐果”乳剂原液2公斤,分装于20个罐头瓶内,瓶口用塑料薄膜扎紧,膜上扎20个小孔,以便药剂挥发。孔不宜大,以防雨水渗入。在庄稼乳熟期开始,把瓶分散放置于作物行间上方,直至收获时为止。经观察,鸟雀从田间飞过时不再下落取食,收获时颗粒无损。 Pesticide “dimethoate” emulsion stock solution 2 kg, sub-packed in 20 cans bottles, the bottle neck with plastic film tighten the membrane tied 20 holes for the agent volatile. Hole should not be large, to prevent the infiltration of rain. At the beginning of the milking period, place the bottles over the rows of crops until harvesting. After observation, the bird will not drop when feeding from the field and will not damage the grain at harvest.