Microbicide is a metabolite derived from radioactive bacteria. When diluted at 600–800 times, a 4% fruit tree-specific formulation can effectively prevent diseases such as apple powdery mildew, apple scab, and anthracnose. Applying a 200-times diluted solution directly to affected areas can provide effective treatment for rot diseases. Nongken 120 contains over 10 amino acids, and when applied, it helps enhance plant resistance to various diseases.
Polyoxin, also known as Polyoxoamphenicol or Polaroid, is available as a 10% wettable powder. Diluted 1000 times, it can be used to prevent apple leaf spot disease. After the apple buds open and during flowering, spraying twice is highly effective in controlling apple heart rot.
Liuyangmycin, a 10% emulsifiable concentrate, when diluted 1000 times, is effective in preventing red spider mites on fruit trees.
Bt (Bacillus thuringiensis) bacterial insecticide, when sprayed at a 500-times dilution, can control larvae of leaf-feeding caterpillars and fruit borers on fruit trees. Adding 0.1% detergent to the solution enhances its effectiveness.
Avermectin, an antibiotic produced through microbial fermentation, is commonly sold under names like Zeadin or Insect Dawn. A 1% aloe vera oil solution diluted 4000 times has proven very effective in controlling spider mites, particularly the difficult-to-control two-spotted spider mite, also known as the white spider.
These biological pesticides offer eco-friendly alternatives to chemical treatments, reducing environmental impact while maintaining high efficacy against common fruit tree pests and diseases. Always follow the manufacturer's instructions for proper dilution and application methods to ensure safety and optimal results.
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