Control methods of leek grub
The root was irrigated with 1000 times of phoxim, 1000 times of trichlorfon, 4000 times of 50% cyanohydrin EC, 3000 times of chlorpromazine and 2.5 times of trichlorfon. Before sowing or planting, you can also use the above agent mixed with poison bait or coated with seed coating agent.
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Characteristics of fertilizer requirement and key points of fertilization techniques for leek
In order to prevent maggots and other underground pests, 5% phoxim granules are sprinkled before sowing, with a dosage of 2 to 3 kg per mu, and in addition to prevent grass famine. 33% herbicide EC 100 to 150 ml or 48% Dile gum EC 150 to 200 ml is sprayed per mu, and then hug again to sow seeds and raise seedlings.
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Control measures of Fusarium wilt of leek
Symptoms of leek wilt: in the hot season, when it clears up after rain, it may break out within 2-3 hours. The middle part of the leaf or the tip of the leaf that touches the ground shows a water scald-like symptom, which occurs in all leaves in severe cases, and then dies completely. Although the diseased root plant can sprout a new one, it is sometimes cute.
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