First, wheat scab: eliminate the source of disease and prevent field disease.
Control methods: continue to treat sick wheat straw and wheat bran.
Second, soybean anthrax, bacterial spot disease: to prevent seedling damage.
1. Dressing with seed coating agent.
2. Suitable sowing to prevent over-consolidation.
Third, soybean cyst nematode, root rot, root rot
Apply the new forest seed dressing agent, 80 grams per bag, mix 15 kilograms of seeds, or 35% dovecote seed coater in a 1.5% ratio. It can effectively control root diseases and underground pests, and can also prevent early pests such as thrips and fleas. For severe cyst nematode occurrence, soy root can be used to prevent bacteria seed dressing method, while preventing soybean root rot.
Four, corn smut, sorghum smut, millet white disease prevention and treatment
1. Maize smut (Umi): Reduced incidence in the field.
1 Pickled vegetables are soaked in water for 24 hours (smelling and deteriorating pickled cabbage water cannot be used). After soaking, the seeds must be dried.
2 large areas of rotation for three years.
3 New Seed Treatment: Use Bayi Agricultural AG seed coating agent for seed dressing, the dosage is 1.5% of the seed amount, which can effectively prevent root diseases and underground pests.
2. Sorghum smut (Umi): Reduces incidence in the field.
1 soaking in constant temperature water at 55°C for 5 minutes. Or use 50% thiophanate-methyl wettable powder according to the seed amount of 0.7-0.9% seed dressing.
2 More than three years of rotation.
3 Avoid sowing on rainy days. Choose continuous sunny sowing to prevent powdering.
3. Millet white incidence (see valley old): to prevent seed bacteria, reduce the incidence of late.
1 Wash with water 5 times.
2 Use 50% of seeds to mix seeds with mixed stones.
3 We do not weigh and do not greet us.
Fifth, sunflower sclerotia (bad head): reduce the late disease.
1. Select disease-free seeds.
2. Do not weigh, not greet.
3. Treat the diseased wheat straw with a disk.
Sixth, corn borer (arrow worms): deal with wintering hosts to reduce field hazards.
1. Plane the net, clean the net, pick the net and the straw.
2. Use fireweed to close the worms and their equivalent culms.
Both of the above items should be taken at the end of May and it will not be effective late.
VII. Insect worms (sweet thief): Adults and eggs are trapped and killed to prevent larvae from damaging seedlings.
1. Poison bottle traps adult worms.
2. The straw grass attracts moths.
8. Ground tigers (cutaways): Prevent larvae from damaging seedlings.
1. Physical control, using sweet and sour liquid and black light trap to kill adult.
2. The bait traps and kills the larvae, sautes 5 kg of bait, and mixes with 90% trichlorfon and 150 g of water, and spreads 1.5-2.5 kg per mu.
3. Chemical control, 3rd instar larvae were sprayed with 20% cypermethrin 2000x.
Nine, Eastern Scarab (Cockroach): To prevent larvae damage.
1. Kill adult worms: Ignite the trees in the field and ignite them in the windless evening after the age of the adult, kill them after they fall.
2. Agricultural control: Application of decomposed organic fertilizers. In open field vegetable fields, the soil is deep-turned in autumn and winter, combined with irrigation to reduce the source of overwintering insects.
3. Chemical control: When larvae happen, use 50% phoxim EC 2000-3000 times to irrigate root, or use 50% phoxim 1 part, water 50 parts, mix 600 seeds, mix and boring seeds 3-4 Hours, dry sowing. When a large number of adult pests are harmed, they are sprayed with 10% cypermethrin 5000 times solution or sprayed with 20% chlorimethanol 3000-4000 times solution.
Ten, jump A: Prevention of adult damage seedlings.
With 40% omethoate formulated into 800 times liquid, spraying 40 kg per mu. Or 2.5% deltamethrin 1 kg water 1500-2000 kg spray, mu liquid volume 40 kg. Pay attention to the seedling control of millet and sugar beet, especially when the seedlings are freshly emerged.
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