It is the most economical and basic prevention and control measures to prevent and control flower and plant diseases and insect pests by using cultivation techniques. The author now introduces the following eight common measures for reference by farmers.
Rotation of flower gardens is practiced, which has good control effect on perennial disease such as seedling damping-off, blight, blight, and bacterial wilt and single-feeding pests.
Reasonable planting such as sticky sea bream should be avoided when planting together with cypress or other cypress trees, otherwise it will cause severe occurrence of flower rust disease such as sticky sea lice.
Varieties of pests and diseases should be selected and cultivated with the ability to resist pests and diseases according to local conditions, especially for some diseases or pests that are difficult to control or have no effective control methods. It is more important to select and cultivate pest-resistant species.
Scientific Fertilization Scientific fertilization can adjust the nutritional status of flowers and trees and increase their ability to resist diseases and insect pests. The use of properly formulated culture soils for potted rose can reduce the occurrence of rose black spot.
Reasonably watering the soil and causing poor drainage is the cause of damping-off of the seedlings and the direct cause of decay of the flower roots. The pathogens of cherry root cancer and jasmine white peony disease can spread with running water. When irrigation, pay attention to the direction of the water flow to prevent pathogens from spreading to nearby healthy plants with water. Watering in time to relieve drought can reduce the occurrence of rose powdery mildew.
Some diseases and insect pests are bred with the seeds, seedlings, bulbs, bulbs, scions, cuttings and other propagation materials of flowers. Therefore, healthy materials without pests should be selected for sowing propagation.
Thoroughly disinfecting greenhouses is more often done by fumigation. Take a break: In the evening, close the doors and windows to light the medicine and fumigate. The next day, you can open the window for ventilation. For example, use 2-3 grams of 20% quick-cylinder aerosol per 10 cubic meters, smoke once every 7-10 days, and smoke 3 times. To sterilize the flowers in the ground, 70% chloronitrobenzene and 80% zeocin WP are mixed in equal amounts. 8-10 grams per square meter is used to dip into the ground, and 50 ml of formalin can also be used. Add 8-12 kilograms of water to water.
Timely clean garden combined with plastic trimming of flowers and trees, thorough and timely removal of disease (fall) leaves, diseases (bugs) branches and diseased plants, and centralized destruction, can achieve a multiplier effect of prevention and control.
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