How can we reduce the cost of rape planting and improve the income in life?

Rapeseed is not only a popular vegetable in the market, but also an important oil crop in China. In recent years, due to the rising labor and agricultural prices, rape planting efficiency is low and planting area is reduced. How to solve the problem of increasing cost and decreasing income? Let's analyze it from the perspective of pests and diseases.

Strengthen the prevention of pests and diseases;

The main pests and diseases in rape growth are Chilo suppressalis, Pieris rapae, aphids and so on. Aphids are easy to appear under high temperature and drought conditions in the middle and late growth period of rapeseed. The principle of pest control is prevention first and comprehensive management. The frequency vibration insecticidal lamp can trap and kill the adults of Pieris rapae. At the same time, natural enemies such as parasitic bees can be used to control Plutella xylostella and Pieris rapae. For rape aphids, natural enemies such as sandfly, ladybug and aphid can be used.

The chemical control method of Artemisia annua can be 1.8% avermectin EC 1500~3000 times, or 10% bromocyanamide 1000~ 1500 times, or 0.3% azadirachtin 500 ~. To control aphids, 25% thiacloprid wettable powder was sprayed 5000~ 10000 times, and 10% imidacloprid wettable powder was sprayed 2000~3000 times. To control fleas and beetles, spray 15% pyrimidine EC 1000 times and 10% acetamiprid EC 800 times.

Sclerotinia sclerotiorum is the main disease of rape. Sclerotinia sclerotiorum can occur from seedling stage to mature stage, and the peak period is at full flowering stage. When Sclerotinia sclerotiorum occurred, the diseased spot on rape stem was spindle-shaped, with brown edge and white middle. The leaf spot is irregular or round, with yellow halo at the outer edge and grayish brown or yellowish brown at the center. Under humid conditions, white hyphae grow out of the diseased spots and grow rapidly. In the late growth stage, the vascular bundle of rape is exposed and easily broken, the stem pith is eroded, and there are many black granular sclerotia in the stem. The time to control Sclerotinia sclerotiorum is when the plant rate of single branch is about 50% and the plant rate of main stem is 90%, and it can be controlled with Jundijing, carbendazim or thiabendazole wettable powder, which can be sprayed on the middle and lower leaves of rape.

The above are the related methods of rape pest control for your understanding, learning and reference, hoping to help you.