Method for preventing and controlling early blight of cherry tomato

Abstract

The invention discloses a method for preventing and controlling early blight of cherry tomato. The method comprises the following steps of (1) adopting a 3-year intercropping system with non-solanaceae crops to plant, wherein continuous cropping with the solanaceae crops is adopted; (2) before seedling breeding, soaking seeds in warm water with temperature of 52 to 55 DEG C for 30min, spreading and cooling after seed soaking, and disinfecting a seedling bed by Zineb at the rate of 5g / m<2>; (3) reasonably performing close planting, i.e., spraying 300-400 times Bordeaux liquid before field planting, timely removing weeds after field planting, timely trimming branches, pinching and pruning, timely picking disease plants and leaves, and centrally burning; (4) forming a water drain ditch in a planting field, timely draining excessive water after raining, ventilating air after watering, applying a potassic fertilizer in a growth period for improving resistance, and applying 18 to 20kg of potassic oxide per mu; (5) preventing and controlling the early stage of early blight by 250-400 times Carbendazim wettable powder, spraying at the interval of 7d, and spraying for three times in total, so as to control the early blight. The method has the advantages that the agricultural control is used as a main method, and the disease occurrence probability of the early blight of the cherry tomato is greatly decreased.

Description

technical field [0001] The invention relates to a method for preventing and treating early blight of cherry tomatoes, which is applied in the technical field of tomato disease prevention. Background technique [0002] Early blight of cherry tomatoes mostly occurs on leaves, and also harms fruits and stems. It is the main disease that harms cherry tomatoes. It often causes leaf drop, fruit drop and broken branches. At present, the focus of prevention and treatment of cherry tomato early blight in the market is focused on western medicine treatment, that is, various sprays are used to spray the diseased fruit trees. To achieve the purpose of disease prevention from the root. Contents of the invention [0003] In order to solve the above-mentioned problems, the invention discloses a method for preventing and treating early blight of cherry tomatoes, which consists of the following steps: [0004] (1) Adopt a 3-year rotation system with non-Solanaceae crops to avoid continuo...

AI Technical Summary

Problems solved by technology

[0002] Early blight of cherry tomatoes mostly occurs on leaves, and also harms fruits and stems. It is the main disease that harms cherry tomatoes. It often causes leaf drop, fruit drop and broken branches. If the disease is serious, it can reduce production by more than 30% due to disease. At present, the focus of prevention and treatment of cherry tomato early blight in the market is focused on western medicine treatment, that is, various sprays are used to spray the diseased fruit trees. On the one hand, it requires a large amount of drug costs in the early stage. Preventing diseases from the source