Prevention and control of rapeseed aphids

Speaking of rape pests, we have to mention aphids. The aphids are concentrated in the leaves, young leaves, tender stems and leaves near the ground. They are born by sucking the juice of the page, which seriously affects the normal growth of rapeseed. So what is the control of rapeseed aphids? What about the trick? Let's follow the Xiaobian to understand it.

Chemical control

1. At the seedling stage, the rate of sorghum is up to 10%. Each acre can use 25% Aketai water dispersible granules 4000~6000 times, 50% anti-Puwei WP 2,000-3000 times even spray; or 70% imidacloprid water Disperse granules 4-6 grams, add 30 kg of water spray.

2, each branch has 3 to 5 heads, with the following agents to control: 1.8% Avi * high chlorine EC or 1.1% poison 1000 ~ 2000 times liquid, sharp red wet powder 1000 times liquid, 37% high chlorine * Malathion l000 ~ 2000 times liquid, 2.? 5% enemy kill emulsion 3000 times liquid.

Seed treatment

Use 100% of 20% succulent WP, 100 kg of seed dressing, or seed dressing with methylthiophosphorus, insecticidal phosphorus and carbofuran to prevent aphids during seedling stage.

Tips: The rape aphids are concentrated on the back of the leaf or near the ground. Pay special attention when spraying. If you want to get more knowledge about pesticides , please pay attention to the Chinese pesticide network.