How to prevent and treat rose plant diseases and pests
Living knowledge series, about the green plant maintenance tips for preventing and treating rose plant diseases and pests, here is a detailed introduction.
How to prevent and treat rose plant diseases and pests
Now in April and May, roses have basically bloomed once. After the flowers have bloomed, in addition to fertilizing to help them recover quickly, the most crucial thing is to prevent diseases and pests.
Because at this point, the plant's resistance is relatively low after the roses have bloomed, and with the rise in temperature and more rain, it is easy to breed diseases and pests.
1. Preventing Pest Infestation
For preventing and treating rose plant diseases and pests, I have shared with you before that if it is for beginners in gardening or for those who find using too many chemicals too troublesome, we can directly use this 'Rose Guardian' kit, which contains both fungicides and pesticides that can effectively prevent various diseases and pests.
If there is no 'Rose Guardian', we can also decide what to use based on the different diseases and pests affecting the plants. First, let's talk about the diseases that roses are prone to in spring, which are powdery mildew and black spot disease.
For powdery mildew, it can be effectively prevented and treated. For black spot disease, tebuconazole can also be used, or dimethomorph and mancozeb, which can also be effective.
Now let's talk about the pests that are common during this period. The pests that roses are more likely to be infected with now are aphids, green caterpillars, thrips, and red spiders. Generally, to prevent these pests, we can use abamectin dimethoate.
To prevent these pests, we can use abamectin dimethoate, which contains both abamectin and dimethoate and is a complex insecticide that can effectively prevent various pests.
However, if infected with red mites, using abamectin dimethoate will not be effective. At this time, we can use etoxazole or propargite to eliminate the mites.
2. Timing and Frequency of Insecticide Application
The timing and frequency of fungicide and insecticide application are also very important. We generally apply fungicides and insecticides after the rain, which is better.
Because after the rain, diseases and pests multiply very quickly, and applying the spray directly at this time can effectively prevent them.
Do you know the detailed introduction of how to prevent and treat rose plant diseases and pests shared in this article?