害虫感染也易发生，主要感染的害虫有米象和玉米象等。
Pest infestation also easily occurs, mainly rice weevil and corn weevil , etc.
将苦皮藤素制成微粉剂1、2和3 ，将它们混入大米和小麦中，能有效控制玉米象的危。
Micro granule 1,2 and 3 were made of celangulin, to mix different kinds of micro granule with rice or wheat, Sitophitus zeamais Motschulsky could be controlled.
将苦皮藤素制成微粉剂1、2和3 ，将它们混入大米和小麦中，能有效控制玉米象的危。
Micro granule 1,2 and 3 were made of celangulin, to mix different kinds of micro granule with rice or wheat, Sitophitus zeamais Motschulsky could be controlled.
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