Recently, a farmer consulted with a few peach leaves to ask what the disease is. In order to clarify the cause of the disease, I followed the fruit farmer to his Taoyuan view. I saw a layer of fallen leaves on the ground. The lesions on the diseased leaves were polygonal or irregular and brown. There were yellow-green halo rings around the lesions. Some lesions had dried up to form perforations, and some perforations were contiguous. Big nicks and holes. From the point of view of the disease, this is a typical bacterial perforation disease. Why did his Taoyuan occur so heavy this year?
The author carefully examined his Taoyuan, and further detailed understanding of the management situation, the final analysis is as follows:
Because of the partial application of nitrogen fertilizer by fruit growers, the peach tree grows prosperously, and the trees are long, resulting in poor ventilation and light transmission, creating conditions for the infection of pathogenic bacteria, plus two more rains in the middle and early May, resulting in relatively high humidity. This year, the disease occurred early and was heavy.
Bacterial perforation of peach is a common leaf disease on peach trees. The pathogenic bacteria overwinter in the twigs. The bacteria begin to move with the temperature in the second spring. Before and after peach blossom, the bacteria spread by wind and rain, through the stomata and branches of the leaves. Epithelial invasive, usually onset in May, the disease progresses slowly in summer drought, late autumn and late infection, warm, frequent rainfall is suitable for disease, drainage, poor ventilation and partial application of nitrogen fertilizer orchard incidence is heavier.
To control peach bacterial perforation, first of all, it is necessary to strengthen the Taoyuan fertilizer and water management, increase the application of organic fertilizer, NPK combined application, and pay attention to the application of trace elements. Second, it must be properly pruned to make Taoyuan airy and light. Combine pruning, cut off diseased branches, remove fallen leaves, and burn them together. Third, we must seize the prevention and treatment of pharmaceuticals during the key period. Spray 3-5 Baume Lithosulfurizers or 1:1:100 Bordeaux mixture before germination to kill the source of overwintering; spray the 65% Mancozeb WP in May-June. Doubling 1-2 times. In addition, the zinc sulfate lime solution with 0.5 kg of zinc sulfate, 2 kg of quick lime and 120 kg of water also has a good control effect.
Monobenzone can decompose melanin in the skin, and prevent the formation of melanin in the skin, used for the treatment of hyperpigmentation, such as various spots, age spots, melanoma. In addition as intermediates in organic synthesis.
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Function:
Monobenzone can decompose melanin in the skin, and prevent the formation of melanin in the skin, used for the treatment of hyperpigmentation, such as various spots, age spots, melanoma. In addition as intermediates in organic synthesis.
Our company offers variety of products which can meet your multifarious demands.including API Powder.Pharmaceutical Intermediates.Vitamins Powder.Plant Extracts.Food Additive.Peptide Powder and so on We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.
Function:
1.Monobenzone is a compound used as a topical drug for medical depigmentation.
2.The topical application of monobenzone powder in animals decreases the excretion of melanin from melanocytes. The same action is thought to be responsible for the depigmenting effect of the drug in humans.
3.Monobenzone may cause destruction of melanocytes and permanent depigmentation.
4.The histology of the skin after depigmentation with topical monobenzone powder is the same as that seen in vitiligo.
5.The epidermis is normal except for the absence of identifiable melanocytes.
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