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Biogas Liquid to Control Pests and Diseases
Biogas is rich in various biologically active compounds, including amino acids, trace elements, plant growth regulators, B vitamins, and some natural antibiotics. These components contribute to its potential as an eco-friendly pest control agent. Among the organic acids present, butyric acid, phytohormones like gibberellin, indole acetic acid, and vitamin B12 have been found to exhibit significant inhibitory effects on harmful bacteria. Additionally, ammonia and ammonium salts found in biogas slurry can directly impact crop pests. Over time, practical applications have shown that biogas slurry can be effectively used for pest management without causing environmental pollution, leaving no chemical residues, and avoiding the development of pesticide resistance. Because of these benefits, it is often referred to as a "biological pesticide."
Biogas slurry has proven effective in controlling a range of pests and diseases, such as:
1. **Spider Mites Control**: A solution made from 50 kg of biogas slurry, after being filtered and clarified, can be directly sprayed onto affected plants. In most cases, red and yellow spider mites are neutralized within 3 to 4 hours, with up to 98% mortality observed within 5 to 6 hours.
2. **Aphid Control**: For each acre, 30 kg of biogas slurry can be mixed with 50 grams of kerosene and 10 grams of detergent before application. Alternatively, during sunny days when temperatures are high, the slurry can be applied directly under sunlight for better results.
Using biogas slurry not only helps reduce reliance on synthetic pesticides but also promotes sustainable agricultural practices. It's a natural, safe, and effective way to manage pests while supporting soil health and environmental protection. Farmers who have adopted this method report improved crop yields and reduced pest problems over time. As more research is conducted, the potential uses of biogas slurry in integrated pest management continue to expand, making it a promising tool for modern agriculture.