Pitaya is a kind of fruit that is now famous. The market sales are quite impressive. At the same time, there are too many fruit seeds in the big and small videos. There are too few flesh to eat, and it is too troublesome to eat. The propaganda, so the popularity of dragon fruit has increased several levels. Today, Xiaobian wants to share with you some of the pests and diseases that will occur during the growth of dragon fruit and its prevention and treatment methods. Let's take a look at it. . 1. Anthrax The general occurrence of anthrax will occur in the flowering period of dragon fruit or just after fruit setting. Due to the high temperature and excessive rainfall, the treatment of the field management will result in anthrax. The prevention method can strengthen the daily management of the field, discharge the water in the field in time, and cut off some old branches in the small density to enhance the permeability of the field. The initial symptoms of anthrax are usually characterized by red spots on the stems, and then slowly turn black. When severe, black spots penetrate into the fruit, and black spots of large and small sizes can be seen on the peel. The first method of treatment is to remove the virus-infected plants in the field, clean the clods, sprinkle with a layer of quicklime, and fill them with clean, virus-free clods. In addition, it is sprayed with 450g/L of prochloraz aqueous emulsion 2000 times liquid, usually two to three times. 2, scab The cause of sores is that there is too much water in the air, especially when the dragon fruit saplings grow new seedlings, that is, they are often in spring and autumn, so we must prevent them in advance in these two seasons. In the field time, the aging symptoms and the damaged leaves of the pests and diseases are cut off, the weeds in the field and some other debris are cleaned up, and then if a small amount of plants appear on the field, there are brick red spots on the field. We are going to start the chemical control of the field. Generally, it is sprayed with Bordeaux mixture or 50% carbendazim WP 500 times. If the disease is relieved, it needs to be replaced, for example, 72%. Methyl thiophanate WP 1000 times solution, the effect will be better. 3, red and yellow spider Red-yellow plants prefer to eat the tender shoots of dragon fruit, which seriously affects the metabolism of the dragon orchard and the production of dragon fruit. It will slowly eat the plants and then move to the roots, which is the roots that rot and cause the plants to die. There are two ways to prevent and cure. The first one is to buy some traps specially designed for red and yellow spiders to lure them. The second is to spray 73% gram of emulsifiable concentrate 2000 times or 15% of eucalyptus emulsifiable concentrate 1500 times, spray once every five or six days, usually need to spray two or three times in a row. 4, ruler The ruler is a kind of pest that is relatively harmful. If you take a bite in the field, you must do disinfection. Otherwise, there will be a lot of redness and swelling in the bite, and it will be very painful. It mainly harms the newly grown branches of dragon fruit, and it is light green in itself, making a good camouflage for itself. If you don't carefully, you really find that you don't consider them. The method of prevention and treatment is to spray two or three times by spraying 1.5% of the vitamin emulsified concentrate 1500 times or 15% of the suspensioning agent 1000 times. Of course, you can also choose to trap, but the trapping effect is not particularly good for the ruler. Uv Stabilizer,Uv Curable Materials,Uv Light Sterilizer,Uv-Curing Materials Henan Tianfu Chemical Co.,Ltd , https://www.tianfuchem.com