Raising roses on the balcony: 10 roses
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Excerpt from the "Three-Step Method of Raising Roses" series of articles
In yesterday's article, the prevention and treatment methods for rose aphids were introduced, and many flower friends left messages, inquiring about the prevention and treatment methods for rose red spiders. Today, we will focus on the prevention and treatment of rose red spiders.
Rose red spiders are a common rose pest in spring, summer, and autumn, especially in enclosed balcony-raised roses, which are more susceptible to red spider infestation.
Brief introduction to red spiders:
The scientific name of red spider is leaf mite, mainly represented by the cinnabar leaf mite in China, which is widely distributed and can pose a threat to more than 110 plants.
Red spiders have a very high reproductive capacity, laying about 100 eggs at a time. In summer, they can reproduce a generation every 5-7 days.
Although red spiders are despicable, they are great mothers. When the eggs of red spiders start to hatch, the mother red spiders start to guard the birth of their children day and night, and are willing to use their own bodies as the first food for their children, teaching the little red spiders to catch prey, sacrificing themselves.
Environment suitable for red spiders:
Red spiders are most likely to occur in high-temperature and dry environments, so when raising roses in enclosed balconies indoors, they often suffer from red spider infestations due to poor ventilation and no rain.
Especially from May to November, it is the most active time for red spiders, so special attention should be paid to prevention, and treatment should be carried out immediately upon discovery of red spiders.
How to detect red spiders?
The characteristics of red spiders are relatively obvious and can often be detected by observing the leaves.
Rose leaves infested with red spiders will have many needle-like spots, and there will often be many black dots on the back of the leaves, which are the bodies of red spiders.
Characteristics and harm of red spiders:
Red spiders mainly harm the leaves of roses, feeding on the sap from the back of the leaves, causing the roses to grow slowly and the front of the leaves to appear unevenly colored needle-like spots, leading to the leaves being unable to perform normal photosynthesis.
Many red and black dots can be seen on the back of the leaves, with the red ones being red spiders and the black ones being the bodies of red spiders.
Methods for controlling red spiders:
Prevention should be the main approach for red spiders. Normally, attention should be paid to improving ventilation, appropriate pruning, and enhancing the internal permeability of the rose plants. Once red spiders are detected, immediate treatment measures should be taken.
Chemical control methods for red spiders:
There are many drugs available for treating red spiders, such as Jinmanzhi, Aikamian, and other imported drugs, as well as Mianwei, Daliming, Dingfulu, LBZ, Yimiaozi, Thiazin, Lufenone, Abamectin, and Kemet.
No matter which drug is used for treatment, it should be noted that continuous medication is required. In spring and autumn, it can be used once every 7 days, and in summer, once every 5 days, for 3-5 consecutive times to completely eradicate.
Moreover, it is best to use two or more drugs alternately to avoid resistance and achieve better results.
Physical control methods for red spiders:
Many people raise rose flowers on their enclosed balconies, which are more prone to red spider infestations. However, due to the inconvenience of applying pesticides indoors, we can also use physical methods for treatment.
1. Rinse with water
When a rose pot is infected with red spiders, it can be tilted under the faucet and rinsed.
2. Use mosquito coils for fumigation
Enclose the rose pot with a plastic bag and then light a mosquito coil to fumigate. Generally, an hour later, the red spiders will be killed. For safety, it is best to repeat this process several times.
3. Wipe with laundry detergent
When a small number of rose leaves are infected with red spiders, you can wipe them with 500 times the concentration of laundry detergent, then rinse the laundry detergent off, which can achieve a good therapeutic effect.
4. Homemade insecticide
Raising roses on the balcony: 10 roses
In addition, soaking citrus peel in water can also kill insects. Flower friends who are not convenient for applying pesticides can try several methods and rotate them to completely control the red spiders.
Have you encountered any other pests in the process of raising roses? Feel free to leave a message below for Green Plant Enthusiasts.
The above content about raising roses on the balcony: 10 roses, with 9 of them dying from this little creature, is brought to you by Green Plant Enthusiasts. Have you understood it?