Wheat sowing period is a key period for controlling underground pests and some soil-borne and seed-borne diseases. The use of chemical dressing and soil treatment methods can effectively control and reduce the number of insects and disease bases at the seedling stage, reduce the degree of damage, and lay a good job for the next year's wheat harvest. basis.

 

Based on my recent county unit of corn, soybean, peanut and other plots excavation survey, soil pests (grubs, wireworms, mole crickets) worm square was 76.6%, with an average population density was 1.51 / m2, equivalent to an average per acre There are 1011 insects , the highest density of 8762 heads per mu, mainly cockroaches, followed by golden worms, accounting for 48.4% and 47.1% respectively . The density of locusts in soybean fields and some peanut fields is high.

 

Control method:

 

( 1 ) Agricultural control:

 

Underground pests are generally heavier in weeds, extensive cultivation or application of unfermented manure. Therefore, agricultural measures such as intensive cultivation, crop rotation, deep tillage, and application of decomposed manure should be adopted to reduce the density of insects and reduce the occurrence of hazards.

 

( two ) , chemical control

 

1, the occurrence of heavy soil pests plots per acre with 3% methyl isofenphos phoxim granule or granule 2.5 --3 kg fine soil against 25--30 mu kilograms or 50% phoxim or 40% methyl isofenphos 200--250 mL against fine soil 25--30 kilograms made toxic soil, mix applicator on the ground, buried plowing, it may be spread on the mattress head after cultivation, and then mixed with deep rakes In the soil.

 

2 , poison bait trap: per acre with 50% phoxim 200 ml plus water 0.5 kg mixed with 3 kg of bait ( sautéed bran or corn bran ) made of poison bait after the plow, sprinkle before the shovel.

 

3 , pesticide dressing: 40% methyl isoflavone 100 ml or 50% phoxim 100 ml plus appropriate amount of water diluted and mixed with 100 kg of wheat, fully mixed and piled up for 2 - 3 hours after planting ; While controlling underground pests, attention should be paid to the prevention and control of soil-borne and seed-borne diseases such as total ecstasy, smut, smut black powder disease, etc. These diseases can only be effectively prevented and controlled through pesticide seed dressing, and then found after the discovery. Spray control is too late and does not have any control effect. The whole eclipse field can be deep- turned before planting, 70% thiophanate or 50% carbendazim 2-3Kg per acre , 12.5% thiamethoxazole 20ml or 3% phenyl ether ring oxazole 60-80ml wheat seed mix 10kg prevention measures such as; 15-20g with 2% or 3% gram show enemy Committee Dan 40ml 10kg mixed wheat seed, effective prevention and control of Ustilago, smut stalk, Rhizoctonia Diseases and other diseases.

 

Source: Treasure Island Fertilizer Information

 

 

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