Control methods of diseases and insect pests of dragon fruit

Dragon fruit is now a well-known fruit, and its market sales are quite considerable. At the same time, it also appears in large and small videos to tease that it has too many seeds, too little flesh to eat, and too much trouble to eat. Due to the publicity of various channels, so the popularity of dragon fruit has increased by several levels. What the editor wants to share with you today is about some diseases and insect pests that will occur during the growth of dragon fruit and its control methods. Let's take a look at it.

1. Anthrax

Anthracnose usually occurs in the flowering period of dragon fruit or just after fruit setting, due to relatively high temperature, coupled with excessive rainfall, and lack of field management will lead to the occurrence of anthracnose. The method of prevention can strengthen the daily management of the field, discharge the water in the field in time, cut off some old branches in places with very low density, and enhance the permeability of the field. The initial symptoms of anthrax are usually characterized by red spots on the stem, then slowly blackening, and in severe cases, black spots penetrate into the fruit, and large and small black spots can be seen on the pericarp. First of all, the treatment is to remove the infected plants from the field, clean up that piece of soil, disinfect it with a layer of quicklime and fill it with clean, virus-free soil. In addition, it is sprayed with 2000 times of 450g/L prochloraz water emulsion, which can be prevented and treated for two to three times.

2. Scab

The cause of scab is that there is too much water in the air, especially when it grows new seedlings, that is, it occurs more frequently in spring and autumn, so we have to take precautions in advance in these two seasons. cut off the branches and leaves that show signs of senescence and have been damaged by diseases and insect pests, and clean up the weeds and other debris in the field. Then, if we see a small number of plants with brick-red spots on them in the field, we should start chemical control in the field, generally using Bordeaux solution or 50% carbendazim wettable powder 500x solution to spray, if the disease is relieved, then we need to change the agent, for example, 72% methyl thiophanate wettable powder 1000 times solution, the effect will be better.

3. Red and yellow spiders

Red and yellow plants prefer to eat the tender shoots of dragon fruit, seriously affecting the metabolism of dragon orchard and the yield of dragon fruit, it will slowly gnaw off the plant, and then move to the root, which is root rot, resulting in plant death. There are two ways to prevent and cure them. The first is to buy some traps specifically aimed at red and yellow spiders and trap them. The second is to spray 73% carotene EC 2000 times or 15% chlorpromazine EC 1500 times, once every five or six days, usually two or three times in a row.

4. Inchworm

Inchworm is a kind of harmful pest, if you are bitten by it in the field, you must do disinfection, otherwise there will be a large area of redness and swelling, and very painful. It mainly harms the new branches and leaves of dragon fruit, and it is light green itself, so it makes a good camouflage for itself, if it is not careful, it really finds them and does not consider them. The method of prevention and control is to spray 1.5% methamyl salt EC 1500 times or 15% A suspension 1000 times spray two or three times, of course, you can also choose to trap and kill, but the effect is not particularly good for inchworm.

The above are several common diseases and pests of dragon fruit introduced to you by the pro-agricultural network, as well as their causes and control methods, as well as some other diseases, such as Fusarium wilt, soft rot, and so on. It's just that the editor has limited energy to share these kinds of diseases first. if you find some other diseases in the process of planting and don't know how to deal with them, you can leave us a message.