How to control melon fruit fly? Bitter gourd fruit fly is very common, how to control bitter gourd f

The adult worm of the melon fruit fly inserts the oviposition tube into the melon to lay eggs, and after hatching, the larvae eat the melon, and the mature larvae come out of the rotten melon and pupate into the soil. The South Asian oligomane fruit fly is a dangerous quarantine pest, and the known distribution areas in China include South China and Southwest China. The larvae have a bouncing habit and can bounce up to 5 to 30 cm tall.

The larvae bury the melon into a honeycomb shape, and the mature larvae can be popped out of the rotten melon or pupated with the rotten melon.

Control method: sweet and sour liquid traps adult insects (1 part of sugar, 3 parts of vinegar, 100 parts of water; or use melon juice and juice to add a little trichlorfon into a poisonous bait); spraying trichlorfon and phosphine solution; Young melon bagging to prevent adult eggs from laying eggs; Remove the rotten melons in time and bury them deeply.

Sponge is commonly known as moss, the sponge flocculent group in the field of the seed seed presses the seedlings, so that the seedlings are late, the seedlings die, and the water temperature will be lowered at the same time, when the sponge covers the area reaches 30%, the water temperature can be reduced 2 3; When the sponge occurs in large quantities in the field, the fertilizer applied cannot fall into the roots of the seed, and competes with the seed for water and fertilizer and growth space. The sponge field was seriously damaged, and the leaves of the sponge were yellow, and the yield was reduced by about 30%. The vitality and fecundity of the sponge are very strong, and it likes fertilizer, especially under the condition of large amount of phosphorus fertilizer, it grows vigorously and accelerates the reproduction rate.

In early June, with the increase in temperature and the effect of phosphate fertilizer and organic fertilizer in the field, it multiplied and harmed rapidly. The occurrence of flood water is as follows: Long-term water accumulation in low-lying areas, poor drainage, and deterioration of water quality.

A large amount of phosphorus-containing fertilizers is applied to form fertile and watery fields. In the previous year, the water was high. Prevention and control methods:

The first is scientific fertilization, and the reasonable formula of nitrogen, phosphorus and potassium. The second is manual salvage. When the sponge forms a small amount of flakes in the field, it is manually fished out first, although the remaining sponge filaments have been broken, but its fertilizer absorption ability is extremely strong, and it quickly reproduces to form a new group, but the broken filaments are in contact with the liquid medicine, which will make the sponge quickly poisoned and die, so the salvage should be treated in time to prevent and control.

the third is chemical control, with 1 1 200 Bordeaux liquid per mu, spraying when the sponge is in the "block stage"; After July, the amount of pesticide application will be increased in the "quilt period" of sponge.

When planting bitter gourd, fertilize first, and then spray pesticides every day, so that the bitter gourd fruit fly can be reduced, and the bitter gourd fruit fly can also be prevented.

The first is to choose those varieties that are resistant to bitter gourd fruit flies to plant, and then spray them regularly.

These situations are also due to the lack of timely sunlight exposure, so there should be sufficient sunlight to ensure that these insect disasters are avoided, and some pesticides should be sprayed in time to deal with them.

If it is a large-scale planting of bitter gourd, you can install insecticidal lamps, in the period when there are many insects, you can use professional insecticides, and you should clean the bracket in time, otherwise it will attract bitter gourd fruit flies.

The control methods and some matters to be paid attention to in the melon fruit fly.

This should be selected according to the specific situation, Lvpusen is a manufacturer of insect pheromones, in which the melon fly pasteboard is only for the target insects, highly specific, and the effect is very good.

Pharmaceutical control is a supplementary measure of agricultural control and physical control. The best way is to add brown sugar and vinegar to 800 times the solution of trichlorfon, add two metric pieces of red grain and vinegar per barrel of liquid medicine (about 15 kg), and spray the crown after fully covering it to kill the adult fruit flies.

Use insecticidal lamps: Trap male adults by hanging them on shaded trees or scaffolds on the periphery of the orchard to reduce the density of insect populations.

Yellow sticky board: Particularly fond of yellow fruits, it will lay eggs on this yellow fruit. Use a yellow or yellow-green sticky board to trap fruit flies by hanging from fruit trees. When it is full of insects and the glue is not sticky, it can trap and kill both male and female flies.