Rape aphids occur less seriously in China as of 9 March

As of 9 March, 2018, the occurrence area of rape aphids reached 0.47 million ha (6.99 million mu) in China, down 30.70% YoY. It was widely reported in the main winter rape producing areas, and the number of aphids was pretty high in Southwest China. ...

Insecticides China News 201803

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