To prevent and control jujube pests and diseases, first of all, it is necessary to use the right medicine and accurately select which pesticides to use . According to the types of pests and diseases that occur in crops, the pesticides with excellent control effect should be selected, and at the same time, the selected pesticides should not be safe for crop safety, or It is basically no phytotoxicity; it is small or basically non-toxic to humans and animals; it is a high-efficiency, low-toxic and low-residue pesticide that has no pollution to the ecological environment or is basically free of pollution.
For example, control pests such as aphids, whitefly, and Liriomyza sativae, 2% of avermectin, 3% of chlorfenapyr, 2.5% of cyhalothrin, 48% of chlorpyrifos, sputum , insects, imidacloprid and other agents control.
Control pests such as mites, planthoppers, hibiscus, scales and other pests can choose 2% avermectin, 3% tianda yam, sorghum, nisolang, awei diesel emulsion, stone sulfur Mixtures and other agents for prevention and treatment.
For the control of lepidopteran pests, 25% Tianda chlorfenapyr No. 3, 20% tianda hydrazide, 2.5% lambda cyhalothrin, 2% avermectin, 48% chlorpyrifos and other agents should be used for prevention and treatment. .
Prevention and control of gray mold, sclerotinia, chalk disease, etc., can be controlled with carbendazim, procymidone (speed Keling), chlorhexidine, amishida, Ai Miao emulsifiable concentrate, Wanmuling and other agents.
For the prevention and treatment of diseases such as epidemic diseases and downy mildew, Tianda Yufeng, Kelu, Plex, Amishida, Moxacillin, Antivirus, chlorothalonil, Dasheng, Ethylene Phosphate, Retox, and Crystal Control of cyanide and other chemicals.
To control diseases such as wilt disease, root rot, verticillium wilt, rickets, blight, and other diseases such as anthrax, brown spots, and gray spots, it is necessary to use carbendazim, methyl thiophanate, and kill , squamous amine, diclosan, carbendazim and other pharmaceuticals.
Prevention and treatment of powdery mildew, rust and other diseases can be controlled by Tianda Yufeng, Pinking, Stone Sulfur, 40% Fuxing, 10% Shigao, 30% Amishida, 30% Ai Miao, and Bingqing.
For the prevention and treatment of viral diseases, Tianda Yufeng, Xiaozhuling, Virte, Shengzhifeng, Fungiqing, and Zhilingling should be used for prevention and treatment.
Prevention and treatment of jujube jujube disease should be controlled by oxytetracycline, tetracycline, Baiyu stop, Tianda Yufeng, and virus special drugs.
Bacterial diseases such as bacterial keratin, perforation, limbal blight, leaf blight, bruise, ulcer, scab, and necrosis of the marrow, can be used in the days of strontium, chlorpyrifos, serotonin, fluoropropionic acid, cyclopropane Sand star, ofloxacin, toning, poly-antimycin, bacteriostatic, DT fungicide , gram kill, collateral copper, Bailu stop and other agents control.
(1) The drug should be timely and timely, and should be used during the period of prevention and treatment of pests and diseases and the initial occurrence of the standard, so as to prevent the disease from being treated more seriously, so as to avoid the harm to the pests and diseases.
(2) Spraying should be meticulous, thorough, not leaking, and not repeated, so as to prevent incomplete control, causing re-development of pests and diseases or causing phytotoxicity.
(3) It is necessary to use pesticides alternately. Do not mix one or several pesticides continuously, so as to avoid the resistance of pests and diseases and reduce the control effect.
(4) Rainy weather should be controlled by dusting powder. Do not spray with water to prevent the humidity from increasing and provide favorable conditions for the occurrence of diseases.
(5) The concentration should be reasonable. It is necessary to ensure the safety of crops, prevent phytotoxicity, and effectively eliminate pests and diseases. It is strictly forbidden to increase the concentration of use without trial, which increases the cost of prevention and causes phytotoxicity. The phenomenon occurred, causing major economic losses.
(6) Spraying should be used together with “Tianda—2116†to improve the activity of pesticides, enhance the efficacy, reduce the amount of pesticides used and the number of uses, prevent the occurrence of phytotoxicity, and improve the control effect.
(7) China Pesticide Network recommends that the water used for dilution of pesticides should be clean neutral water. The pesticide should be used in the current exchange system. Clean neutral detergent should be used to dilute the pesticide. It is not possible to dilute the pesticide with alkaline water or well water that has just been taken out. If the well water needs to be watered in advance, increase the water temperature and increase its oxygen content, it can be used to dilute the agent. When operating, the agent should be diluted with a small amount of water to form a mother liquor, and then slowly mixed with water to spray evenly.
Dicyandiamide can be used as Adhesive. Epoxy Resin, chemical synthesis and so on.
Used as raw material for the manufacture of guanidine, special resin, flame retardant etc. Used as padding for manufacture of leatherette, and as curing agent for adhesive. used as fixing agent in drying industry, as retarding agent in leather industry, as decoloring agent or floculating agent in water treatment industry, as surface hardener in steel ant industry, and as nitrification inhibitor in agriculture.
Adhesive
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