How to Prevent and Control Zucchini Flower Rot? A Full Breakdown of Practical Methods
How to prevent and control zucchini flower rot? What methods can effectively prevent and control it? Zucchini flower rot can be prevented and controlled using the following methods: Environmental regulation: First, reduce humidity. Zucchini flower rot occurs easily in low-temperature, humid greenhouse environments, so environmental regulation should focus mainly on heat preservation and humidity reduction. Since the fruiting period of zucchini...
How to prevent and control zucchini flower rot? What methods can effectively prevent and control it?
Zucchini flower rot can be prevented and controlled using the following methods:
Environmental regulation: First, reduce humidity. Zucchini flower rot occurs easily in low-temperature, humid greenhouse environments, so environmental regulation should focus mainly on heat preservation and humidity reduction. Since the suitable temperature during the fruiting period of zucchini is 22-25°C, it is recommended that vegetable growers ventilate to remove moisture only after the greenhouse temperature rises above 25°C. Second, avoid watering on rainy days and during cold spells, and pay attention to raising the temperature and removing moisture the day after watering. In addition, promptly remove rotten flowers, rotten fruit and diseased leaves of zucchini to prevent pathogen spores from continuing to spread and cause damage. When rotten flowers or diseased fruit are found, first cover them with a plastic film bag, then carefully pick them off and take them outside the greenhouse to be deeply buried or burned.
Chemical control: To control gray mold and sclerotinia rot, adopt a chemical control method combining "spraying and fumigating": spraying means foliar application of iprodione or vinclozolin at 1000 times dilution; fumigating means that after closing the greenhouse, sprinkle dimethachlon onto burned corncobs that still retain residual heat, then move them into the greenhouse to fumigate it, at 200 grams per mu. After fumigation, ventilate early the next morning to release the residual smoke. Choanephora brown rot is caused by infection by Choanephora cucurbitarum. Spraying 72% mancozeb? cymoxanil (Curzate) at 700 times dilution or 60% flumorph? mancozeb (Mieke) at 800 times dilution before disease onset at the flowering stage or young fruit stage gives better control results. For bacterial soft rot, spray copper-based organic formulations such as copper succinate-glutarate at 500 times dilution or plant antibiotic agents such as validamycin at 2000 times dilution for control.
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