March to May is the double-growth period of vegetative growth and reproductive growth of wheat. It is also a crucial moment for a bumper harvest. It is also the serious occurrence of three diseases and three diseases of wheat. If this is not properly managed, it will reduce production.
So how do you prevent it?
Let me talk about rust: from late March to the end of April, wheat leaf stems have been infected and leaf rust, strip rust and stem rust have occurred, causing the green leaves to fade and the stems to be damaged, resulting in weak photosynthesis and loss of nutrients, affecting yield.
The prevention and treatment method is: from the end of March to the beginning of April, it can control the occurrence and spread of rust by spraying 15% of rusting 50-100 grams or 50-100 grams of green hunger 50-100 grams of water for two or three times. It can also be treated with 500 times of daisen zinc solution, 1000 times of broth, and 2000 times of Shibaoling solution.
Powdery mildew: The leaves, stems and ears of wheat can be infected, and can be affected from the seedling stage to the ear stage. Especially in late March and mid-April, there is more rain and humidity, and the disease is the heaviest. The prevention and treatment method is : Thoroughly clearing the ditch and scientifically using the water and fertilizer; the medicinal agent can be treated with 1000 times of rust, carbendazim, thiophanate, retort, and disease-killing, and can be effectively controlled.
Scab: Around the end of March, wheat can be flowered and panned, until the grout is mature, it can be infected with scab, and light red or orange spots appear on the grains and awns. This is scab.
From April to May, if there is too much rain and high humidity, it will aggravate the occurrence and deterioration of this disease. Therefore, on the one hand, it is necessary to thoroughly carry out the three ditch support in place so that the clear water can be discharged, and the dark stains can be filtered to ensure that the rain stays in the field and eliminate the ecological conditions in which the disease occurs. The chemical control is: at the end of March, the middle of April, and the first half of May, it can be prevented and controlled. The effective agent can use 25% carbendazim 500 times, 40% dysentery 1000 times, 50 tsubuki 1000. The solution is sprayed with a solution such as 40 times, 40% of the broth, and 1000 times of the anti-mold.
In the middle and late period, if there are mites, snails, and armyworms, you can add 1000 times of Kung Fu or Wanling in the above-mentioned disease prevention agents, and remove the worms, worms, and sweeping, and mix and spray them.
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