Pinus tabulaeformis seedling disease is one of the common diseases of Pinus tabulaeformis seedlings. Rainy years are more frequent, and the disease generally begins in mid-August, and September-October is a prosperous period. After November, the damage is gradually weakening.
The harm of leaf blight of Pinus tabulaeformis
The disease often develops gradually from the lower needles of the seedlings. The diseased leaves begin to appear yellow-brown spots, then expand into segmented spots, and wither to death, the color is dark, and many black spots are formed on the lesions. Although the leaves are dry, they do not fall off. If all the needles are infected, the seedlings die.
Prevention and Control of Leaf Blight of Pinus tabulaeformis
The improvement of environmental conditions is the most effective method to enhance the disease resistance of seedlings and Supplement with the sterilization of drugs to reduce or stop the occurrence of diseases.
1. In the nursery where the crop rotation pattern is applied in successive years, the crop rotation should be implemented, and the rotation of coniferous broad-leaved trees can reduce the disease. For nurseries that can only be used as continuous crops, the diseased seedlings should be completely removed in winter to reduce the number of pathogens.
2. Strengthen Water and Fertilizer Management Winter deep plowing will bury the remnants of the diseased plants in deep soil, apply sufficient basal fertilizer, and pay attention to drought irrigation at the right time in the summer. It is best to divert water to the trails to infiltrate the seedbed.
3, chemical control from the beginning of August with 1:1: 100-200 (copper sulfate: quicklime: water) Bordeaux spray to prevent disease, spraying once every two weeks, the amount of 75-100 kg per acre; or with wave The United States 0.2-0.3 degrees of lime sulfur mixture, the same amount as above. The onset of the disease was controlled with a 50% thiotrexate 800-fold solution and the effect was significant.
Raw materials for animal medicine
Conventional veterinary drug raw materials are: oxytetracycline hydrochloride, doxycycline, chlortetracycline hydrochloride, lincomycin sulfate, gentamycin sulfate, tylosin tartrate, florfenicol, water-soluble amoxicillin, sulfamethoxazole, enno Floxacin lactate, ciprofloxacin hydrochloride, ciprofloxacin hydrochloride, metronidazole, ribavirin, vitamin C, astragalus polysaccharide, penicillin potassium.
The traditional Chinese medicine extracts in veterinary medicines are derived from natural Chinese herbal medicines.
It is purified, concentrated and purified in a different ratio from the original drug. It not only retains the natural state and biological activity of the original drug composition structure, but also retains the harmless and
The beneficial exogenous substance essence realizes the micro-quantification and standardization of Chinese herbal medicine raw materials, and provides a new way for the breeding industry to realize green production. The following herbal extracts for veterinary use: Anti-pathogenic microorganisms Chinese medicine: Anything that can inhibit or kill the reproduction of pathogenic microorganisms and improve the immunity of the body is called anti-pathogenic microorganisms
Chinese herbal medicine. According to the theory of traditional Chinese medicine, it can be divided into heat-clearing medicines, exopathic medicines, diarrhea and water-repelling medicines, damp-damping and diuretic medicines, phlegm-relieving and cough-relieving medicines, qi-regulating and Xiao-shi pharmacological blood medicines, and phlegm-relieving and anti-asthmatic medicines.
Raw materials for animal medicine,Nicarbazin in Feeds,Nosiheptide Veterinary,Nosiheptide Antibacterial,Human Gastric Mucin
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