The latest common diseases of jackfruit and their control

Jackfruit is a very heavy, very large fruit, its tree body is also very high, generally an average of about 15 meters, there is a relatively large planting area in our country. But despite the fact that jackfruit is tall, if not properly managed, there will still be many diseases, which will have a great impact on the normal growth and development of jackfruit. If it is not dealt with in time, it may lead to extinction. So what are the diseases that affect the growth of jackfruit? How to prevent and cure it? Let's take a look at it.

1. Fruit rot

Disease characteristics: the main pathogen of jackfruit fruit rot is cystosporium, which is mainly harmful to the fruit. After the fruit is infected, it will produce brown spots on the surface of the pericarp, and then gradually expand and soften. It gradually deepens and blackens in the middle of the spot, and many black dots occur on the surface of the verrucose polygonal bulge on the pericarp. When the infection is serious, they will gradually connect together, encounter wet conditions to emit a large number of black and white strips, the bacteria will begin to extend to the stalk, the fruit will fall ahead of time. Bacteria usually invade through wounds and some pests, spring and summer is the peak period of disease, overcast and rainy weather, the growth of weak plants will aggravate the disease.

Control methods: to strengthen the management of the orchard, the correct cultivation of the tree, winter is to pay attention to the proper pruning of the tree, topdressing some organic fertilizer. Choose a good time to thinning flowers and fruits, spray chemicals for prevention and control, fruit picking should be light to prevent mechanical damage. After ripening, the fruit can be sprayed with appropriate amount of Bordeaux liquid and other chemicals for control, at least once a week.

2. Anthrax

Disease characteristics: anthracnose is one of the most common diseases of all crops. it mainly harms the fruits and leaves of trees and has a great impact on fruit ripening and decay during storage and transportation. When anthracnose harms the leaves, it begins to develop in the middle of the leaves, then spreads to the top along the veins, and finally extends to the lateral veins, resulting in poisoning and deterioration of the veins and finally necrosis. Or on the leaf tip, the disease begins to occur, resulting in irregular spots, usually brown. When the fruit is sick, it will show irregular brown patches on the pericarp, making the fruit brown and begin to rot, and there will be many small black spots on the diseased part. these are the fruiting bodies of the bacteria.

Prevention and control methods: prevention and control of anthrax is mainly based on prevention, I can choose to spray at an appropriate time for protection on the basis of strengthening management. After picking the fruit, we should begin to loosen the soil and remove the diseased branches and diseased fruit from the tree. After the death of flowering and young fruit stage, chemical spraying protection was carried out.

3. Split fruit

Disease characteristics: jackfruit's fruit cracking is a physiological disease, which usually begins to crack when the fruit is gradually ripe, which is a very common phenomenon. The main cause of the disease is caused by jackfruit's lack of trace elements, especially calcium, which is generally shown in longitudinal cracking and a few in transverse cracking. The flesh will appear yellow and white at the crack, and the black substance will grow and begin to blacken and rot. It can easily be triggered by a sudden rainy day in a long-term drought or vice versa.

Control methods: during the fruit expansion period, the orchard must be ploughed deeply to make the soil more loose, promote the growth and development of the root, and improve its absorptive capacity. In the growing period, pay attention to scientific fertilization, appropriately increase the use of calcium fertilizer, but also wet bio-organic fertilizer. Avoid keeping jackfruit in a dry or rainy day for a long time.

The above are several common diseases that jackfruit will encounter when planting. In addition to these diseases, there will also be the threat of insect pests, because the threats of insect pests are almost several, so the editor did not elaborate. Most of the diseases are caused by improper management, so when planting, we must always pay attention to the hygiene of the orchard, reduce the pathogen and reduce the incidence.