How to control onion maggots in garlic? You can use 48% Lorsban

Reader Yuan Yong from Group 2, Jixing Village, Tongshang Town, Dafeng City, Jiangsu Province, wrote in to say that in 2005, @#@261@#@ broke out severely in local garlic fields. Digging up 1 garlic plant revealed 6 to 8 maggots in the root and stem, causing some fields to suffer almost total crop loss. Many garlic farmers were extremely anxious and hoped we could ask experts to provide a solution.

On this issue, we consulted relevant experts at the Plant Protection Station of the Jiangsu Provincial Department of Agriculture and Forestry. The experts said that the onion fly, also called onion maggot or garlic maggot, belongs to the order Diptera, family Anthomyiidae, and is a common pest on Welsh onions. In mild cases, it reduces yield by 10% to 20%; in severe cases, by more than 30%, or even destroys the crop. Besides damaging onion crops, it can also damage garlic, Chinese chives and other Liliaceae vegetables. The larvae bore into the bulbs of onions, garlic and the like to feed, causing rot, which makes the upper leaves turn yellow, wilt and die. Control method: you can use 48% Lorsban (chlorpyrifos) at 800 times dilution for drenching, using 500 kg per mu.