Recently, the newspaper's technology 110 hotline received a telephone call from the reader to consult the common diseases and prevention methods of poplar. To this end, the reporter interviewed experts from the expert advisory group of the newspaper. According to experts, common diseases of poplars include ulcer disease, black spot disease, and leaf blight. First, poplar canker disease. Occurred mainly in the process of seedling transplanting, in May for the peak period of onset. The disease mainly harms the middle and lower parts of the trunk. Blisters appear on the trunk at the beginning of the disease. After the blister ruptures, the odor-laden liquid flows out. Afterwards, it shrinks and sinks into ulcer spots. Prevention: You can use strong seedlings to afforestation, avoid root damage when lifting, and keep moisture when transporting. Before rooting, the rooting powder solution was used to root the roots, and water was poured into the bottom water when the plants were planted. After the plants were planted, they were sprayed with 0.5 Baume of lime sulfur and 160 times of Bordeaux mixture to prevent trunk infection and reduce the incidence. Second, poplar black spot. The onset of disease began in early May, with the heaviest damage in summer and autumn. It can harm the leaves, petioles, tender shoots, etc. of poplars and form horny, nearly round or irregular dark brown spots on them. Prevention: The plant should be properly planted and cut in time, air and light in the forest should be kept, and the leaves in the forest should be cleaned in time to reduce the source of the disease. Treatment: 200 times the Bordeaux mixture, or 85% 250% solution of Zeson spray. For non-pathogenic poplars, spray 40% carbendazim 800 times, or 25% chlorothalonil 600-800 times, 0.3% urea and potassium dihydrogen phosphate mixture for prevention and control in early June. Third, poplar leaf blight. From the leaves of poplar leaves, the leaves, shoots, and young stems of poplars are endangered. The leaves are most susceptible to disease from May to June. Nearly round, polygonal, or irregular lesions appear on the victim's leaves, and dark brown molds appear on the lesions. Prevention: Spray 2 to 3 times of medicine throughout the growing season of poplar. The agent can be used 40% 300% aluminum phospho-aluminum, 75% chlorothalonil 500 times, 50% carbendazim 1000 times. To remove the litter in time, bring it out of the forest and burn it or fatten it. Finally, experts pointed out that the common diseases of poplars should be mainly prevention, and they should promptly consult the local technical departments in order to find out the condition and timely prevent and treat them.
Polymer material is a multi-phase composite system with polymer as the main body, that is, few products are made of pure polymer, and most of them are used together with Polymer Additives. The purpose of adding polymer Additives is: 1. to meet the performance requirements; 2. to meet the molding requirements; 3. to meet the economic requirements. Polymer additives include plasticizers (DBP, DOP), phosphate esters (TCP trimethylphenyl phosphate), aliphatic dicarboxylic acids, lubricants, heat stabilizers, processing aids, reinforcing agents, toughening agents, curing agents, antioxidants, light stabilizers, fillers, solvents, foaming agents, and resistances. Propellant, coupling agent and antistatic agent.
Our Services
1. OEM(????) service is available.
2. Fast producing time.
3.Cheapest price forproduces.
4. Reply promptly in 24 hours.
5.Free sample available.
FAQ
Q1: product specifications?
A: we will pack the product specifications according to your needs.
Q2: Do you have some videos where we can see the line production?
A: Yes, we can provide some videos for reference. (yes, we can provide some videos).
Q3: How about payment terms? What kind of payment terms do you have?
A: 30% TT deposit + 70% TT before shipment, 50% TT deposit + 50% LC bala
Nce, Flexible payment can be negotiated.
Q4: what advantages do you have?
A: the quality of the products we offer can be guaranteed and will provide you with very competitive prices.
If you have any questions, please contact with us directly. Organic Intermediate are produced by HRT bearing With High Quality and Good Appearance. Welcome you can visit our Factory. For inqury, please send mail directly to us.
Polymer Additives
Polymer Additives,Aziridine Homopolymer,Additives For Polymer,Polymer Powder Additives
Shandong Chenyi Environmental Protection Technology Co.,Ltd , http://www.chenyichem.com