Pest control
2022-11-05 07:08:21
Hummer should pay close attention to the timing of the prevention and treatment of the land where the population of plague horses whose larvae reach more than one hundred locusts and where the symptoms are infested. Can choose 15% arginine EC 1200 times, or 45% cypermethrin EC 1500 times or biological pesticide Zhongnong No. 1 water agent 800 times 3 kinds of pesticides, the efficacy of a single application can reach more than 95%, the effective period of up to One month. Should pay attention to the alternate use of pesticides, it is strictly prohibited to use the same pesticide continuously in the same plot, especially beta-cypermethrin is easy to produce pest resistance.
In the mid-June period, the locust infestation in seed bases and lands that cannot be cut in time were controlled 1500 times with 25% imidacloprid wettable powder, 2000 times with 25% pyrooxychlorine or 1000 times with biological pesticide BTA, which can achieve significant Control effect.
Once it is discovered that new seeds are found on elephant weeds, they can be treated with poisonous soil immediately. They can use chlorpyrifos 800 times or phoxim 500 times in the afternoon to spread their soil around the roots.
Grassland larvae found 1 to 2 larvae per square metre, or a large number of adult worms 7 days to 10 days after the chemical control, the selection of low toxicity chemicals 15% arginine EC 1200 times, 4.5% beta cypermethrin 1500 times Or bio-pesticide Zhongnong No. 1 water agent 800 times, and 0.3% Kulinsang No. 3 water agent 800 times, control effect can reach 100%.
The leaf miner should choose high-efficiency and low-toxicity systemic insecticides such as avermectin series, which can be sprayed and sprayed with 2000 times liquids such as spot latent nets and acetylephrine.
Downy mildew should follow the principle of “prevention of weight and treatment†for diseases. For plots that cannot be cut ahead of time or in time, it is recommended to use metalaxyl, netophylum net, and poisonous locust 600 to 800 times in the middle and late May. 1 to 2 times.
The brown spot is selected and disinfected by seeds. The Bordeaux mixture and the lime-sulfur yellow mixture can be used for control.
In the mid-June period, the locust infestation in seed bases and lands that cannot be cut in time were controlled 1500 times with 25% imidacloprid wettable powder, 2000 times with 25% pyrooxychlorine or 1000 times with biological pesticide BTA, which can achieve significant Control effect.
Once it is discovered that new seeds are found on elephant weeds, they can be treated with poisonous soil immediately. They can use chlorpyrifos 800 times or phoxim 500 times in the afternoon to spread their soil around the roots.
Grassland larvae found 1 to 2 larvae per square metre, or a large number of adult worms 7 days to 10 days after the chemical control, the selection of low toxicity chemicals 15% arginine EC 1200 times, 4.5% beta cypermethrin 1500 times Or bio-pesticide Zhongnong No. 1 water agent 800 times, and 0.3% Kulinsang No. 3 water agent 800 times, control effect can reach 100%.
The leaf miner should choose high-efficiency and low-toxicity systemic insecticides such as avermectin series, which can be sprayed and sprayed with 2000 times liquids such as spot latent nets and acetylephrine.
Downy mildew should follow the principle of “prevention of weight and treatment†for diseases. For plots that cannot be cut ahead of time or in time, it is recommended to use metalaxyl, netophylum net, and poisonous locust 600 to 800 times in the middle and late May. 1 to 2 times.
The brown spot is selected and disinfected by seeds. The Bordeaux mixture and the lime-sulfur yellow mixture can be used for control.
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