(1) Strengthen monitoring and early warning and timely guide prevention and control work. Plant protection agencies at all levels, especially at the county level, must monitor the monitoring of midgeworms, wheat stubble, stripe rust, powdery mildew, and head blight according to production actual and task requirements in the region, identify individuals, and integrate system monitoring with large area surveys. The measures to timely grasp the pests and diseases, accurately publish forecast information, and scientifically guide prevention and treatment of drugs.
(b) Wheat soaking insects during the flood control. Based on the principle of both prevention during the flood season and prevention and control of the adult period, the key period of suctioning and larvae should be grasped, and the prevention and control of uniform soils should be emphasized in the booting stage of wheat. The use of 2.5% or 3% methyl isofluosal powder for the mu should be 2 kg. Or 5% chlorpyrifos powder 600-900g, or 40% methylisosalopus EC 200-300ml against the appropriate amount of water, mixed fine soil or fine sand made of 25-30 kilograms of toxic soil, Shunmai ridge evenly spread the wheat field surface, sprinkle Watering without timely watering of poisonous soil can improve the efficacy. Be careful not to spray medicine with dew, and use toxic materials such as broomsticks, branches, pull ropes, etc. to promptly spread toxic soil on the ground.
(c) One-spray multi-prevention technology for wheat during flowering and grain filling. This period is the peak period for the occurrence of various diseases and pests, and it is also a crucial period for wheat to strive for the number of grains per ear and 1000-grain weight. At this stage, the main monitoring and control targets were adult insect pests of midge, wheat bran and wheat sheath blight, powdery mildew, stripe rust, head blight and leaf blight, and different control techniques and formulations were adopted depending on the occurrence of field pests.
1. Control of adult midge and wheat aphids. In early May, when wheat blooms, the midge enters emergence and lays eggs, which is a critical period for adult control. During this period, the upper part of the wheat had adult midge insects and the middle and lower leaves had wheat aphids breeding. At this time, scientific control of pesticides on the road can be used to achieve two kinds of pests and cure diseases. It is best to use imidacloprid and phoxim compounded sprays, such as 30% Worm No. 1 diluted 800 sprays. Alternatively, 4.5% beta-cypermethrin 1000-fold, 50% phoxim 1000-fold, 50% chlorpyrifos 1500-fold, or 10% imidacloprid 1000-fold can be used for spray control.
2. When it is necessary to cure rice sheath blight, select 5% Jinggangmycin 100-150 ml or 20% Streptomycetella 60-100 ml to mix and spray with the above insecticide, and spray on the base of wheat stems to emphasize the use of medicine. In place.
3. When it is necessary to cure powdery mildew, stripe rust, or rain during flowering, to control scab, in the liquid medicine for controlling the aphids of midge, add 12.5% ​​diniconazole, 25% tebuconazole or 1000 according to the dilution ratio of 1500-2000. Double the dilution factor plus 20% triadimefon, 50% carbendazim mixed spray control.
(d) Remove grassy weeds. The growth of vicious weeds such as wheat, wild oats, bromegrass, and aegis is rapid and heavy. It matures earlier than wheat, and its seeds fall off on the surface as it matures, and most of the seeds of wheat have basically landed on the ground. In the following year, hidden dangers are left. Therefore, there are wheat fields such as glutinous wheat, wild oats, bromegrass, and aphrodisiac weeds. We must remove the wheat fields before heading and grouting and combine with other agricultural activities. In addition, destroy it before seeding.
(e) Prevention of hot and dry wind at the heading stage. During the grouting period until the ripening period of wheat, when the weather forecast has dry hot air or dry hot air (temperature above 30 degrees, wind power above 3, air relative humidity below 30%), take preventive measures and spray 1% urea in time. Water + 0.2% potassium dihydrogen phosphate solution (or the corresponding anti-dry hot air increasing agent), etc. to prevent dry hot wind, usually spray once every 5 days, and even spray 2 times is appropriate. For wheat and other lands that still need to be controlled, use 4.5% beta-cypermethrin 1000-fold, 3% acetamiprid and 50% chlorpyrifos (or 40% dimethoate, etc.), 1:1, 1000-fold solution plus phosphate two. Hydrogen and potassium mixing spray control, to achieve a variety of effects of pest control and increase production.
(six) to grasp the timing and methods of medication. The first is that regular disease emerges as an early medication. The second is that all effective technologies must be integrated and supported, and all battles should be connected with each other. Third, the amount of liquid per acre can not be less than 30 kilograms, to spray evenly through, all the wheat in all parts of the drug, especially the lower leaves to the drug, and avoid cherishing the water does not hesitate to drug. Fourth, after the prevention and control, we must promptly check the effectiveness of prevention and control, make good use of leaks, and leave no dead ends. Fifth, compounding drug technology should be used with compounding and do not store. Sixth, ban high-toxic pesticides and strictly implement safe drug regulations.
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