Control method of garlic root maggot in winter

Thoroughly remove the remains of the plant. Garlic root maggots have a strong tendency to plant disease residues, especially rotten garlic plants. Garlic residues in the field, land and roadside should be thoroughly removed and destroyed during garlic harvest, so as to reduce the food source of root maggots and reduce the number of residual insects in the field. Regulate water, fertilizer and sowing plans to destroy the environment of root maggots. The application of organic fertilizer should be fully mature. Dig deep into the soil and plough and rake the topsoil to reduce the number of insects. According to the specific local conditions, the appropriate time for late broadcast. During the Eclosion and spawning period, the soil surface was kept dry to reduce the number of eggs laid by adults. Trap and kill adults. During the adult occurrence period, sweet and sour liquid (sweet ∶ vinegar ∶ water ∶ 90% crystal trichlorfon = 1 ∶ 1 ∶ 3 ∶ 0.1) can be placed per mu (1 mu = 667m2) to trap and kill adults.