Prevention and Cure of Pest against Plutella xylostella

Plutella xylostella is one of the main pests of rapeseed. When the damage is severe, it can reach the level of absolute production. It can happen for 3-4 generations in the whole life of rapeseed, and it overlaps for generations, which makes it more difficult to control. The prevention and control technologies are introduced as follows: I. Predictive inspection and timely prevention and control First of all, we must understand and master the occurrence patterns of the diamondback moth, especially the areas where the previous year was serious, and pay attention to the occurrence of the following year. When rape seedlings grow to 8-10 leaves, field inspections, such as larvae with more than 20 larvae per square meter, should be sprayed 3-4 times immediately to effectively control the hazards. Second, the correct choice of pesticides The current prevention and control of diamondback moth Pesticide varieties are more, better control effect of 25% of the Huifeng Chong, 4.5 cypermethrin, 2.5% Kung Fu, 35% Ke Mo Bao, 0.9% Aifuoding No. 2, etc., However, at the time of purchase, attention should be paid to checking whether there is a “Pesticide Operation Permit” to prevent counterfeiting and counterfeiting. Third, prevention and control methods 1, the preparation of liquid medicine concentration should be appropriate, in order to achieve both the control effect and save the cost of the purpose, if there is saline water can increase the concentration of the appropriate places. When preparing the liquid medicine, water should be added to the sprayer bucket after the medicine is dispensed, so that the liquid medicine is uniformly mixed. 2. The concentration of the drug solution should be based on different drugs. The concentration of the drug should be different. The commonly used control effect can be better with 4.5% cypermethrin EC 1000-1500 times, 25% Huifeng CWP 1500 times, 2.5%. Kung Fu 2000 times liquid, 35 grams of Moth Bao 2000 times liquid, 0.9% Edding Fork No. 2 2000 times spray control. If it is particularly serious, increase the concentration appropriately. 3, the amount should be sufficient, spray carefully. When more than 10 pieces of rapeseed and after bolting, 1.5 mu of liquid medicine (mist bucket) should be sprayed and sprayed. When the rape grows up to 60 cm high, the branches are large and the leaves should be sprayed. More than 2.5 barrels of good liquid (atomizer bucket), and to spray carefully, spray nozzle should be up, down, left, right spray, so that all plants attached to the liquid. 4, group defense, joint defense, timely, centralized control. During the peak period of Plutella xylostella, its generation overlaps seriously. If it fights in this area, its adults fly to another land egg. Therefore, in a natural village, a method of centralized prevention and control shall be adopted to concentrate the whole planter's uniform time on a plot-by-slice plot for spraying and all of them shall be played in 3-5 days. This will serve the purpose of killing larvae as well as escaping adults to lay eggs in the field. Spraying 3-4 times in a serious year of the diamondback moth can effectively control its damage, and the control effect can reach more than 90%.

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As a professional manufacturer of health care products, from product design to mass production, We gradually establish a complete set of strict and effective modularized quality control system, and have passed 1509001:2008, ISO13485:2003 authentication.

Massage Cushion is one of our main product series, we Focus on The R&D and Production of Massage Cushion 14 Years, our product includes smart back shiatsu massage cushion series, neck and back kneading massage cushion with heat series, full body shiatsu massage cushion with heat series, kneaidng and vibrating massage cushion series, etc. you can see some models of our massage cushion .

                  

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