Wheat seedling pest control should be treated as early as possible

In recent years, due to the influence of climate, variety, cultivation management and other factors, the pests and diseases of wheat seedlings are aggravating, which needs attention and early prevention.

 

Wheat seedling pests

 

The main pests of wheat seedlings are aphids, gray planthoppers, bandits, small tigers, and crickets.

 

In addition to direct damage to wheat seedlings, aphids and gray planthoppers are also insects that transmit viral diseases such as wheat yellow dwarf disease and clump dwarf disease. The prevention and control methods of these two pests are as follows: one is to remove the weeds at the edge of the field and the canals, and the other is to control the pesticides. After the wheat seedlings, add 10% imidacloprid WP 1000 times or other pyrethroid insecticides. Silicone additive, sprayed 5 to 10 meters wide on the edge of the field and the ground .

 

For the control of soil mites, generally 50 ml of pyrethroid pesticide plus 20 ml of worms and wheat bran are mixed with about 10 kg of wheat bran , and evenly applied to the wheat field after 10 am at 2 am .

 

Control the small tigers. After the wheat emerges, use 3% phoxim granules, and apply 6 to 8 kg per acre to the vicinity of the wheat seedlings.

 

Control crickets per acre with 4.5% cypermethrin EC 40 ~ 60 ml, or 2.5% bifenthrin EC 80 to 100 ml, 20 ml attractant alkenyl, watered 30 kg, in a uniform spray of adult stage.

 

Wheat seedling disease

 

Wheat seedling diseases mainly include rust, total eclipse and sheath blight.

 

When wheat rust occurrence rate of 5%, 15% mu Triadimefon WP 50 grams, or 20% triadimefon EC 40 ml, or 12.5% Poly WP speed 15 to 30 grams, 50 to 70 kg of spray watered.

 

For plots where total erosion has occurred, 20 to 30 days after sowing of wheat , 120 to 200 grams of 20% rusting emulsifiable concentrate per acre , 50 to 60 kilograms of water , spray seedlings along the ridge, and spray once again in the next year. To treat both powdery mildew and rust.

 

For the severely affected plots of wheat sheath blight, use 150 % of 20% of rusting emulsifiable concentrate per acre , or 150 to 200 grams of 5% of Jinggangmycin aqueous solution , or 50 to 5% of carbendazim WP, 50 to 75 grams. 50 to 75 kilograms are sprayed along the ridge.

 

( Source: Henan Daily Rural Edition )

 

 

 

 

 

 

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