条件筛选
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Scraping the bark of fruit trees in winter can effectively eliminate pests, diseases and pathogens
Scrape the bark to eliminate fruit tree pests, diseases and pathogens; do not neglect scraping fruit tree bark in winter
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Identification of plant physiological diseases: diagnosis of diseases caused by abiotic pathogens
Identification of plant abiotic pathogens and the diseases they cause (physiological diseases)? During the process of plant growth and development, unsuitable physical factors, chemical factors, air pollution, pesticide toxicity, as well as the plant's own physiological defects or hereditary diseases in the environment can all cause plants to develop diseases caused by abiotic pathogens