How to completely eliminate red spiders
Do you know about these? Tips on how to completely eliminate red spiders and the correct pesticide application guidelines for plant cultivation, let's follow the editor to see the specific content together!
May and June are the peak blooming periods for many plants, including the common China rose, which is now in full bloom and rapidly growing leaves. It is particularly susceptible to red spider infestations, especially when growing flowers on balconies. Without early prevention, the China roses on the balcony can become heavily infested areas.
You might think your China roses will grow like this (when first bought)
The state of your China roses at home (after a while)
1. Why does the infestation recur after spraying?
Every time you find plants infected with red spiders, it's usually in the mid to late stages when the pest infestation has become very severe. Spraying at this point is difficult to achieve good results.
Tomatoes severely infected with red spiders
There is also a situation where after spraying the pesticide, the pests seem to have disappeared, but they come back after a while. This is because they were not completely eliminated. When red spiders爆发 on a large scale, you can see very distinct brownish-yellow spots on the back of the leaves, and even some small red spiders. Webbing between leaves is usually a sign of a very severe infestation.
How to completely eliminate red spiders
Detail image
At this point, even common miticides will have limited effectiveness. Spraying can eliminate most of the pests, but it's easy for eggs to remain, and the infestation can re-emerge after a few days.
2. Pesticide application guidelines in the later stage of pest infestation
In such cases, it is possible to prune the plant appropriately, reducing some of the leaves, especially the severely infested ones. Remove any残花 promptly, and it is not recommended to keep any flower buds. After pruning the leaves, they become sparse, and spraying becomes easier.
Indoor foliage plants are also prone to red spider infestations.
In terms of pesticide use, common miticides like Jinmanzhi, combined with etoxazole, can usually eliminate the pest infestation. Generally, spray every two to three days. Before spraying, water the soil thoroughly, then lay the plant on its side, and spray the back of the leaves more, making sure to spray the entire plant and soil evenly.
After red spider infestation, there will be brownish-yellow spots on the leaf surface, and the back of the leaves should be carefully inspected at this time
When red spider infestation is more severe, it is recommended to use orange essential oil, organic silicone, or palm oil (these three are adjuvants that increase the adherence of the pesticide) combined with propargite. There are also some compounded pesticides on the market, such as Abamectin-Propargite, which is made by compounding abamectin and propargite and is effective against both eggs and adult pests.
3. Precautions for pesticide spraying
After using orange essential oil, organic silicone, or palm oil combined with propargite, spray the entire plant, including both sides of the leaves, evenly. First, water the soil thoroughly, and then after three days, use another miticide, such as palm oil combined with etoxazole (mainly for eliminating eggs).