Fitopatologi: Prinsip pengendalian penyakit tanaman

Summary

Key Points

• Resistance is achieved by breeding, genetic engineering, using superior varieties, or inducing systemic resistance with weak strains or dsRNA. 2:10
• Exclusion prevents pathogen entry by using regulations, seed certification, and clean planting material. 2:59
• Plant disease control is based on four principles: exclusion, eradication, resistance, and protection. 4:22
• These principles can be implemented through five main methods: legislation, cultivation techniques, biological control, physical control, and chemical control. 4:36
• Eradication removes existing pathogens or their hosts via destruction, crop rotation, sanitation, drainage, pruning, and weed control. 7:03
• Physical methods like soil solarization, mulching, and temperature management create environments unfavorable to pathogens. 7:11
• Protection employs cultivation practices, biological agents (parasitism, antibiosis, competition), and chemical pesticides to shield plants from infection. 8:14
• Biological control agents such as Trichoderma spp., Bacillus subtilis, and PGPR act through competition, antibiotic production, enzyme secretion, and induced systemic resistance. 17:40
• Chemical control includes various fungicides classified as inorganic, non‑systemic organic, and systemic organic, each with contact or systemic modes of action. 22:35
• Improper pesticide use can cause human poisoning, environmental pollution, resistance development, and economic and trade impacts. 35:33