Rape pest control measures

In the past month, mild weather conditions, better soil moisture, and rape growing vigorously have created a good environment for the occurrence of rapeseed pests and diseases. In some places, pests and diseases such as rape, cabbage caterpillar and downy mildew have occurred one after another, especially in rapeseed locusts. To this end, growers everywhere must carefully observe the situation of rape in their fields, grasp the fine weather, and timely carry out field pest control, in order to lay the foundation for high yields and stable production of rapeseed. Several specific prevention methods -

Brassica napus: light field crops, available physical control method, that is, per acre vegetable field evenly placed 10 yellow sedative trap killing aphids, chemical control method, that is, select 70% imirome, 2.5% enemy kill, 25% acetamiprid Antimony and other agents spray control.

Pieris rapae: In the peak period of young instar larvae, the use of insecticides, cypermethrin and other agents to control.

Rape downy mildew: Pay attention to gutters and drainage, reduce humidity, and remove diseased leaves. Before onset or early stage of disease, 80% mancozeb, 70% Antai, and 50% dimethomorph were sprayed and used for spraying. The spray was sprayed once every 10 days or even 2 or 3 times.

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