Damage characteristics of chives and maggots
The larvae gathered in the underground bulb and the base of the stem, and the newly hatched larvae first damaged the base of the leaf sheath and the upper end of the bulb. Spring and autumn mainly harm the young stem of leek, cause rot, make leek withered and yellow and die. In summer, the larvae decay down into the bulb, and in severe cases, the bulb decays, resulting in the death of pier seedlings.
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Scientific harvesting method of leek
The harvest time of leek should be suitable, generally 4-5 times a year and 2-3 crops before June in spring. Summer cultivation of leek to high yield is mainly to raise roots, so that plants produce more tillers, so generally do not harvest, to lay the foundation for high yield in autumn. Generally, 2-3 crops can be harvested in autumn. If there are too many harvests, it will lead to plants.
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Control methods of Golden Needle insect in Chinese chives
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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