The sowing period of wheat is a critical period for controlling various pests and diseases of wheat. This stage can prevent labor, time, and medicine, and can control a variety of diseases and insect pests with remarkable effects. The main control targets for wheat diseases and insect pests during the sowing period are underground pests, cockroaches, cockroaches, golden needles, wheat midge, wheat sheath blight, total erosion, virus disease, yellow dwarfism, bushy dwarfism, and smut. Its prevention measures are:
First, choose pest resistant varieties. Select pest-resistant species for the main pests and diseases in the area and do a good job of rational distribution of varieties.
Second, create a disease-resistant ecological environment. Fine soil preparation, clearing the field of sickness and weeds. Persist in increasing the use of mature farmyard fertilizers to scientifically balance fertilization. By means of cultivation methods such as planting in sufficient amounts, planting in late period, and semi-precision seeding, the strong seedlings of wheat were cultivated to increase the disease resistance of wheat itself.
Third, deal with the soil. In the re-emergence areas of underground pests and wheat midge insecticide, 50% phoxim or 40% methylisothiphos EC 0.5-1 kg/mu, 2-3 kg water, and 20-25 kg of fine sandy soil can be used as a poisonous soil plow. Spread the ground evenly before the ground and plunge into the soil with the plough. For re-emerging land masses, use 50% carbendazim or 50% thiophanate-2.2.5 kg/mu, mix 15-20 kg of fine soil, spread the ground evenly before plowing, and plow the soil into the ground. in.
Fourth, drug seed dressing. For the general area of ​​the ground pests, 40% methamidophos or 50% phoxim EC 50g, 4 to 5 kg of water, and 40 to 50 kg of wheat seed can be used. Rhizoctonia solani, smut, stripe rust, available as 2% rickettsia at 0.1% to 0.15% of the seed weight, or 20% triadimefon EC as seed weight at 0.15%, or 12.5% ​​podrolidine (carbenol) ) Seed dressing at 0.12% of seed weight. Excessive use of triadimefon and pods has an impact on the emergence and growth of wheat. It is necessary to strictly control the dosage so as not to cause phytotoxicity. Wheat whole eclipse disease, available 2.5% Coke 100 ml, add 1.5 ~ 2 kg of water, mixed with wheat seed 50 ~ 100 kg, dry after sowing. Wheat yellow dwarf disease, bushy dwarf disease, use 75% of Phorox EC 100 ~ 150 ml, add 3 ~ 4 kg of water, mixed with 50 kg of wheat seed, mix and piling for 12 hours after sowing. In the mixed area of ​​pests and diseases, we must vigorously promote the mixed dressing of fungicides and insecticides, and calculate the amount of each, first mix the insecticide and then mix the bactericide, and strictly follow the seed dressing operation procedures to prevent poisoning of humans and animals.
Fifth, the seed coating. Seed coating agent is a new type of pesticide produced by compound processing of insecticides, fungicides, trace fertilizers, plant growth regulators, and film formers. Seed coating has the advantages of simple, sustained-release and long-lasting effects. Besides controlling pests and diseases, it also has the effect of seed fertilizer and should be widely promoted. According to the types of diseases and insect pests, the appropriate formulations of seed coating agents can be selected.
First, choose pest resistant varieties. Select pest-resistant species for the main pests and diseases in the area and do a good job of rational distribution of varieties.
Second, create a disease-resistant ecological environment. Fine soil preparation, clearing the field of sickness and weeds. Persist in increasing the use of mature farmyard fertilizers to scientifically balance fertilization. By means of cultivation methods such as planting in sufficient amounts, planting in late period, and semi-precision seeding, the strong seedlings of wheat were cultivated to increase the disease resistance of wheat itself.
Third, deal with the soil. In the re-emergence areas of underground pests and wheat midge insecticide, 50% phoxim or 40% methylisothiphos EC 0.5-1 kg/mu, 2-3 kg water, and 20-25 kg of fine sandy soil can be used as a poisonous soil plow. Spread the ground evenly before the ground and plunge into the soil with the plough. For re-emerging land masses, use 50% carbendazim or 50% thiophanate-2.2.5 kg/mu, mix 15-20 kg of fine soil, spread the ground evenly before plowing, and plow the soil into the ground. in.
Fourth, drug seed dressing. For the general area of ​​the ground pests, 40% methamidophos or 50% phoxim EC 50g, 4 to 5 kg of water, and 40 to 50 kg of wheat seed can be used. Rhizoctonia solani, smut, stripe rust, available as 2% rickettsia at 0.1% to 0.15% of the seed weight, or 20% triadimefon EC as seed weight at 0.15%, or 12.5% ​​podrolidine (carbenol) ) Seed dressing at 0.12% of seed weight. Excessive use of triadimefon and pods has an impact on the emergence and growth of wheat. It is necessary to strictly control the dosage so as not to cause phytotoxicity. Wheat whole eclipse disease, available 2.5% Coke 100 ml, add 1.5 ~ 2 kg of water, mixed with wheat seed 50 ~ 100 kg, dry after sowing. Wheat yellow dwarf disease, bushy dwarf disease, use 75% of Phorox EC 100 ~ 150 ml, add 3 ~ 4 kg of water, mixed with 50 kg of wheat seed, mix and piling for 12 hours after sowing. In the mixed area of ​​pests and diseases, we must vigorously promote the mixed dressing of fungicides and insecticides, and calculate the amount of each, first mix the insecticide and then mix the bactericide, and strictly follow the seed dressing operation procedures to prevent poisoning of humans and animals.
Fifth, the seed coating. Seed coating agent is a new type of pesticide produced by compound processing of insecticides, fungicides, trace fertilizers, plant growth regulators, and film formers. Seed coating has the advantages of simple, sustained-release and long-lasting effects. Besides controlling pests and diseases, it also has the effect of seed fertilizer and should be widely promoted. According to the types of diseases and insect pests, the appropriate formulations of seed coating agents can be selected.
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