Reasons and Preventive Measures for Rose Powdery Mildew
Today's life tip brings knowledge about the reasons and preventive measures for rose powdery mildew, which will be introduced by our site editor.
Reasons and Preventive Measures for Rose Powdery Mildew
In the spring stage when roses grow new buds, they are most susceptible to diseases and pests. New buds can be eaten by caterpillars, and if they survive the pests, the tender buds may still be affected by diseases. The most severe disease in spring that affects roses is powdery mildew, and treating roses with powdery mildew is very troublesome.
Powdery mildew is a type of parasitic fungus that can penetrate into the tender branches of roses, causing the entire plant to be infected with powdery mildew. If symptoms are not treated promptly for a few weeks, the entire rose plant will turn white and become a zombie plant.
In spring, as temperatures gradually rise and rainfall increases, in the environment of significant natural changes, powdery mildew is most likely to occur. Roses are the most susceptible plants to this disease, so it is necessary to take preventive measures in advance and not to ignore them.
The fundamental cause of powdery mildew occurrence is poor ventilation in indoor environments, which is the main reason. The air is stuffy, the light is weak, roses are not exposed to sunlight for a long time, the soil is waterlogged, and frequent watering and excessive fertilization increase the likelihood of powdery mildew. There are actually three preventive measures for powdery mildew.
1. Increase Ultraviolet Radiation
Natural sunlight is the most effective means of preventing powdery mildew. Move the new rose buds to the sun, preferably without the glass barrier, as stronger ultraviolet light makes roses safer.
2. Control Watering
Control fertilization and do not over-fertilize. In spring, the air is relatively still and poorly ventilated, which can easily make the environment stuffy and humid. This environment is a prerequisite for the outbreak of powdery mildew, so ventilate more if possible.
3. Use Chemical Methods to Solve by Spraying Pesticides
For example, dilute the ratio of carbendazim to water to twice its original amount and double the dilution during the prevention period to minimize unnecessary damage to roses. There are many types of fungicides available for preventing powdery mildew, and everyone can choose according to their needs, but the above two points are most important.
This article shares all the content about the reasons and preventive measures for rose powdery mildew. Green plant enthusiasts can refer to this aspect.