The locust is the communicator of the pepper virus disease. When the pepper seedlings are harmed by the locusts, they grow slowly. When they are severe, the growth stagnates. After the leaves are damaged, they curl up and deform, and the sucking spots form blemishes. In addition, virus diseases are easy to occur in hot and dry weather, so attention should be paid to eradicate locusts in time. Control methods: 40% omethoate EC 1500 times solution, 10% imidacloprid wettable powder 2000-3000 times solution, or 50% admixture of Luanfu Mist and Kangwei Wettable Powder 2000-3000 times solution. Or add 2.5% cyfluthrin EC 2000-3000 times solution and so on. Organic cultivation, biological control available urine washing mixture (ie, 500 grams of urea, 150 grams of detergent, add water, 50 kilograms) and other methods, do see the locust on the spray, and completely rule the lice. Chick virus disease, also known as "flower mosaic disease" or "lobular disease," the dwarfed plants are damaged, the internodes are shortened, the leaves of the veins and yellow-brown lesions are produced on the leaves, and the branches are sometimes plexiform, branches and stems. The surface of the epidermis turns brown, causing early defoliation, falling flowers, falling fruit, severe death, disease, malformation, and yellow rings and yellow-green spots on the surface. Viral disease is an important disease of pepper, which seriously affects the yield and commodity value of pepper. Control methods: (1) Eliminate aphids to prevent viral diseases, and aphids are the major mediators of viral diseases. (2) Seed soaking. Seeds were sown with 0.1% potassium permanganate or trisodium phosphate for 10 to 30 minutes prior to sowing and germinated again. (3) Agricultural control. Strengthen field management, diligent cultivator, promote root development, avoid shortage of fertilizer and water, enhance plant disease resistance, and also use marine biological Organic Fertilizer “Garden Philippine†mixed “leaf face treasure†mixed with 0.1%-0.3% potassium dihydrogen phosphate Root dressing outside. (4) Chemical control. The first is the spraying of 0.1% zinc sulfate solution on the pepper leaves. Spraying once every 10 days can promote early flowering and increase the fruit setting rate, which has the effect of preventing disease and increasing production. Followed by spraying 1:1:200 times Bordeaux mixture or 0.1% potassium permanganate solution every seven days to control the occurrence of disease. (5) Comprehensive prevention and control. In the early stage of disease, the use of pepper virus inhibitor virus A and other mixed non-polluting plant accelerator Green Wind 95 or plant activator Chi Yan, mixed with organic biological fertilizer garden Philippine or potassium dihydrogen phosphate, the effect of prevention and treatment of virus disease is good, every 7- 10 days and then prevent a better effect. (Jia Wei Liu Chunyan, Pepper Science and Technology Development Service Center, Majiang, Dangshan County, Shaanxi Province)
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