Abstract:

In order to clarify relatively sensitive baseline of Aphis glycines to the ten kinds of insecticides in Heilongjiang Province, the resistance of soybean aphid to ten insecticides was tested by leaf-dipping method. The LC50 and relative toxicity ratio of soybean aphid was gotten. The aim was to provide reference for controlling soybean aphid effectively. In 2010, toxicity baselines of susceptible soybean aphid were tested, the results showed that, soybean aphid had light resistance to Omethoate in Harbin, Jiamusi and Mudanjiang, the resistance index were 6.99, 5.47 and 4.42, respectively.