Fruit fly is also known as orange small fruit fly, orange big fruit fly, moth fruit worm, yellow fly, etc., because of its body shape like a bee, also known as "needle bee".
Mention the fruit fly, so that many growers have a headache, the fruit is stung by it on the end, and the reproductive ability is strong, the migration is strong, relying on chemical control alone is not ideal for the rational effect.
The fruit fly has a needle in the tail, which is the egg layer. In the late stage of fruit expansion to the coloring period, adults will lay eggs and pierce into the fruit, and the larvae will eat the flesh inside, causing local pulp rot and causing fruit fall.
Fruit fly prevention should be early, when the fruit is found to be locally rotten, it has been harmful for a while, this time it is too late to prevent and control, and many fruits may have been harmed.
Symptoms after fruit damage: local rot of the peel, rotten flesh and maggots.
Citrus fruit fly control programme
1. The late stage of fruit expansion is about a month before the color change, and physical control can be carried out, which can hang yellow plates, insect bottles, insect balls, etc.
Mainly hang a circle around the periphery (surrounding) of the orchard, which is appropriate to hang some, and the orchard with more fruit flies is hung again during the coloring period.
2. When more fruit flies are found, chemical control is used in time, that is, spraying to drive away. Reference drugs are: cypermethrin, high efficiency cypermethrin, rice powder perchlorofluoride, cypermethrin + pyrithione and so on.
3. After being infested by fruit flies, the fruit should be treated centrally, first kill the insect (octyl thion) and then bury it deeply, or throw it into the fire, eliminate the larvae at the bottom of the side, and reduce the source of insects.
Summary: Most orchards can be physically controlled. Individual orchards did not control well, the main control is too late, about a month before the fruit turns color, it is necessary to start prevention and control, and there is a fruit pound after being killed, and there is no centralized treatment. 【Disclaimer】The content of this article is for reference only.