Aphids are common wheat pests. According to Xiaobian, it is particularly strong in reproduction. As long as they have aphids, they can cause severe reduction or no harvest of wheat. Do you know how to control mites? I don't know how to learn with Xiaobian.
Aphids are the main pests on wheat. Once the control is not timely, the production will be reduced, and the plots will be severely damaged. Even today, the hazards and control methods of wheat aphids are mentioned.
First, the symptoms
1. Seedling damage symptoms
The wheat seedlings grew a few leaves, and the aphids began to harm because they did not pay attention to prevention and control in the early stage. In the late seedling stage, aphids occur severely.
The mites are seriously damaging, and the wheat seedlings are dying. This piece of wheat is also beginning to yellow, and it is already malnourished.
2, the ear damage symptoms
Since the seedling period has not been controlled, the wheat has just emerged from the ear, and some plants have begun to die. At this time, the occurrence of the field, the yellowing of the pieces, is the serious damage of the mites. At this time, the close-range damage is caused, and the wheat ears are full of mites.
This piece is more serious, and the black pressure is all mites. How horrible to look at this piece carefully, if you don't control it, you have to stop it.
Is the little locust quite scary?
Second, prevention and treatment methods
When the temperature is suitable, the aphids have an amazing breeding speed. Therefore, once the outbreak occurs, it is difficult to control. It is necessary to monitor the pests and diseases, prevent and prevent them early.
1. Seed treatment: Before sowing, 27% of the Sussula suspension seed coating agent can be mixed with 1:300, and the effective period is up to 120 days, which can effectively control the aphid damage during the seedling period and reduce the wintering base in the field. Time, cost-effective, is the best way to prevent and cure.
2. Soil treatment: When planting wheat, 8% imidacloprid granules can be sown with the seed, using 2-4 kg per mu, and the effective period is more than 100 days. It can also effectively control the damage of aphids in the seedling stage and reduce the wintering base. It is also a good prevention method.
3, early prevention and control: If the imidacloprid seed dressing or soil treatment is not used in the early stage, in the wheat greening, jointing stage and heading stage, it should be regularly visited in the field. Once the harm center is found, rapid spraying and control can be used, 5% beta-cypermethrin 2000 times + 5% imidacloprid EC 1000 times solution, spray control, must be sprayed carefully in the early stage, if this time the prevention is thorough, then the aphid is easy to control a lot.
When it is serious, it can be sprayed with 48% chlorpyrifos emulsifiable concentrate 1000 times liquid + 80% dichlorvos emulsifiable concentrate 1000 times. It is necessary to pay attention to spraying flag leaves and wheat ears. Spraying should be even and meticulous, and use two barrels of water per acre.
At this time, 99% of potassium dihydrogen phosphate can be added to the water per barrel during spraying, which can prevent the dry hot wind and increase the 1000-grain weight of wheat.
According to Xiaobian, the most common pests in wheat planting are aphids, so growers should prevent them as early as possible so as not to cause wheat to be reduced or not.
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