Occurrence and Control of Garlic Clam

First, the symptoms of damage Garlic larvae eat garlic bulbs, the bulbs rotten, aboveground leaves yellow, wilting, and even death. Pulling out the victim can be found in maggots. The damaged garlic skin is yellow-brown and rot. The garlic is drilled into holes by the larvae. The incomplete, incomplete, garlic cloves are exposed, burst, and accompanied by foul smell. Victims are easily pulled out and pulled off.

Second, the occurrence characteristics of Garlic can cause harm before the winter, after the winter phlegm overwintering, the following year in March the pupa emerged into adults. Adult eggs are produced in the earth seams or clumps under the garlic roots and even in leaf sheaths. Eggs can be hatched into larvae after 5 to 7 days. The larvae can crawl to garlic for food. Garlic maternal period is the peak period of egg hatching of garlic sprouts.

III. Control Measures According to the weather and the characteristics of garlic sprouts this year, the following effective prevention and control measures should be taken. (i) Artificial trapping of adult worms. You can use brown sugar, vinegar, and water in a ratio of 1:1:2.5 to prepare a trapping liquid, and add sawdust and trichlorfon and mix well, and put it into a trap basin to trap and kill adult insects in a piece of garlic. In this way, killing adults before spawning can have a multiplier effect. (b) to kill adult worms. In the adult spawning period, 1.8% of Qiding Ding was used to spray adults and eggs, sprayed every 7 days, and sprayed twice to reduce the number of adult ovipositors and reduce the damage. (C) Topdressing nitrogen and sulfur fertilizers. Combined with water and topdressing, the nitrogen and sulphur fertilizers that have a deterrent effect on garlic sprouts can reduce the damage. (d) Chemical control. In the field, when a plant affected by Garlic Sprouts is found, it can be treated with phoxim, chlorphenirone, chlorpyrifos, etc., with irrigation or rain. Seriously block every 10 to 15 days and then again.

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