[uses of monomolecular lipid film for control of udo aphid (toxoptera odinae (van der goot))].the biological character of udo aphid was observed and monomolecular lipid film was used to control it. the results showed that at 100 and 200 times the lipid film, the hatch rate of over-winter eggs was lower than the control by 30.76% and 12.15% respectively, and at 50, 100 and 200 times the lipid film the mortality of young nymph aphids was 100% and those of old nymph aphids and adult aphids were 8.31%, 32.62% and 3.31% respectively.19938323704
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