Control of common diseases and insect pests in Ponkan

Ponkan is a very popular citrus variety, and the market demand in our country is very large. Now Ponkan is grown in most provinces in the south, although it has strong growth ability and high yield. However, it is often plagued by diseases and insect pests in the process of planting. So what are the common diseases and insect pests of Ponkan? The following editor will give you a brief introduction, let's have a look!

1. Anthrax

Anthracnose is a disease that occurs in most fruit trees. It will have a great impact on the yield and fruit quality of Ponkan. In planting, we must strengthen the management work, not partial application of nitrogen fertilizer, before spring and summer shoots and fruit ripening. To spray properly for prevention, agents can choose mancozeb, chlorothalonil and so on. The canopy of Ponkan is mainly sprayed once every half a month for about two months, which can be effectively prevented.

2. Foot rot

Foot rot is also a common disease of Ponkan. Foot rot should give priority to prevention, avoid too much water in the field, and do a good job of drainage. Then prune properly to improve the permeability of the garden, and strengthen the prevention and control of pests to avoid carrying germs. When planting, it is best to use trees with strong disease resistance, such as orange, to make grafted rootstocks. This kind of rootstock can also be used to replace the diseased plants. After the onset of the disease, the disease spot should be scraped off in time, and methyl thiophanate and other agents should be sprayed for prevention and treatment.

3. Mites and pests

The common mite pests of Ponkan are red spiders, which are the most serious after the mandarin blossoms in April and around October every year. It should be controlled in time when the insect population density reaches two months before flowering and 5 heads and one leaf after flowering and autumn. Among them, the chemicals that can be used are thiazox, bromoacarate and so on. Among them, we can do a good job in the protection of natural enemies such as long-beard mites.

4. Scale pests

Scale pests include red wax scale, blow cotton scale and so on. We should often observe the growth of Ponkan, in the larval stage of the red wax scale, when a large number of treetops, the most serious period. In the period of high incidence of larvae, the scale does harm to the branches and fruits of Ponkan, and also has a great impact on fruit trees. We can use methamidophos, methotrexate and buprofezin. Then it is necessary to improve the permeability of the garden and do a good job in protecting the natural enemies of scale pests such as red ladybugs.

The above is a brief introduction to the prevention and control of common diseases and insect pests in Ponkan. In addition to the above, there are leaf miner, aphids and so on, all of which require our attention. Improper prevention and control will cause great harm to them, so we must pay more attention to them. That's all for today's introduction. This article is for reference only. Thank you for your reading and support.