Late-maturing citrus varieties also need to start controlling fruit flies, and it is too late when a large number of fruits fall

In previous years, during the citrus coloring period, there were often growers who consulted and were stung by fruit flies, what should I do if the fruit fell?

The fruit is not remedied by a fruit fly, and when the skin is found to be partially decayed, the flesh inside is also rotten. Sugar begins to accumulate about 1 month before the fruit turns color, and fruit flies will come to harm, and the prevention and control work needs to be advanced until the coloring period.

Fruit fly hazards to citrus

Citrus fruit flies are divided into small fruit flies and large fruit flies, which are similar in appearance to bees and are also known as "needle bees".

It has a tail needle (egg laying) in the tail, and in the middle and late stages of rapid fruit expansion to coloring, it likes to pierce into the fruit to lay eggs, and the larvae feed inside the flesh, causing the flesh to rot and cause fruit drop.

Citrus fruit fly control difficulties

Fruit flies not only reproduce quickly, but also have strong migratory properties, and chemical control alone is not ideal.

Spraying is only a repellent effect, such as when spraying it flies away, after a period of time after spraying it comes back. The control of fruit flies requires physical control and chemical control to be effective.

Citrus fruit fly control time

Time: About one month before the fruit turns color to the coloring period.

The maturity period of each variety is different, and the control time is also different. For example, early maturing varieties began to be controlled in June and July, medium-maturing varieties began to be controlled in July and September, and late maturing varieties began to be controlled in September.

Citrus fruit fly control programme

Physical control: about a month before the fruit turns color, hang yellow plates, hang insect bottles, hang insect balls, etc. Mainly in the orchard periphery of the fruit trees hung a few meters apart a few meters / zhang, the orchard inside the fruit trees appropriately hung some. Orchards with a large number of fruit flies are found and hung again during the coloring period.

Insect attractants specifically for the control of fruit flies ¥30 purchase

Chemical control: During the period of high incidence of harm, when more fruit flies are found, spray drugs in time to drive away. The prevention and treatment drugs are: cypermethrin, high-efficiency cypermethrin, rice scattered high-chlorofluoride, high-efficiency cypermethrin + pyridin, etc.

Post-victimization treatment: the fallen fruit is concentrated, first killed (octyl thion) and then buried deeply, or thrown into the fire and burned, completely eliminating the larvae to reduce the source of insects.

Orange Youfeng Xiaolu: After the fruit fly and the fruit sucking night are harmed, the peel will have symptoms of decay, the biggest difference is that there are maggots in the flesh of the fruit fly that has been harmed by the fruit fly.

Most orchards can be prevented by physical control, because in the high incidence period, there are sprays to control insect pests, and generally have a repellent effect on fruit flies. 【Disclaimer】The content of this article is for reference only!