The commodity value of parasitic fruit flesh loss of flies how to control mango fruit flies

Fruit flies can not get the desired effect by using general methods to control pests. Larvae parasitic in the flesh of mango should be used carefully to prevent pesticide residue. Once mango is sent by fruit flies to produce eggs, it is equal to lose commercial value. Through the control in the past two years, it is concluded that in the mango ripening period, the comprehensive control can reduce the fruit fly population density and reduce the loss. The comprehensive control methods are as follows:

Mango fruit fly

1. Orchard cleaning method. For the affected orchards, once a week, clear the ground to drop fruit, carry on the centralized treatment. Methods: ① dug a pit (more than 50 cm) and disinfected it with quicklime on the deeply buried rotten mango. ② water immersion method, after cleaning up the rotten fruits of diseases and insects, put them into dung tanks and biogas digesters, rot and ferment to make fertilizer, or put fish ponds to raise fish. Do not leave wormwood mangoes in orchards or in ravines.

two。 Physical entrapment. Methyl eugenol, a special attractant for fruit flies, was used to trap ①. Open two small openings above the empty mineral water bottle to facilitate the fruit flies to enter, put methyl eugenol, and then hang the bottle on the fruit tree, changing every 15 seconds; ② adhesive: spray the physical adhesive-sticky king directly to the inside and outside of the empty mineral water bottle at the bottom, plastic cup, fertilizer bag, plastic board, etc., and hang it in the cool and ventilated place of the mango tree. Replace every 15-20 days, put 8-10 per mu, after the end of control, remove and clean up and burn. ③ yellow board trap. Hang 8-15 yellow boards per mu.

3. Fruit bagging. The mango was bagged in an all-round way, and the mango was harvested together with the bagging when the fruit was picked. After the fruit was sold, the bag and the diseases and insect pests were cleaned up and burned centrally.

4. Chemical control. ① tree spraying method: the hanging fruit trees were sprayed with cypermethrin and methylvitamin salt. Until the end of 20 days before harvest; ② ground spraying method: the hanging fruit orchard was sprayed on the ground every 15 to 20 days until the end of harvest; ③ plate spraying method: quicklime or phoxim was applied to the mango tree plate for 3 times, especially in winter.

The prevention and control of fruit flies must be diligent, long-term persistence, comprehensive use of a variety of methods, and the cleaning of mango orchards is the key.