How to treat red spider mites on roses? An old flower farmer teaches you three simple tricks to keep diseases away!
How to treat red spider mites on roses? The rose is known to all as a very beautiful and elegant flower, but it is also rather delicate and must be cared for very carefully, otherwise it easily falls victim to various pests and diseases. Especially in hot, scorching weather, we must take careful care of our roses, and pay even more attention to controlling a certain pest: the red spider mite.
1. Symptoms of red spider mite damage on roses
Red spider mites very easily break out in hot, dry seasons. When they appear, there are small yellow or red dots on the leaves, and when their numbers are large they may even spin spider webs on the rose leaves. When we rub the leaves with our hands, red smears appear on the leaves. Red spider mites have mouthparts and live by sucking the nutrients from leaves and plants. When red spider mites appear, they make the leaves turn yellow and wither, and may even kill the plant, which shows just how damaging they can be.
2. How should rose spider mites be controlled?
1. Ventilation and air flow
When growing roses indoors, pay attention to ventilation. The longer they are grown indoors, the more important ventilation and air flow become. To a certain extent, ventilation and air flow reduce the occurrence of pests.
2. Water in time
Red spider mites like dry, arid environments. In dry weather, we must water in time and spray water in time to maintain relatively high air humidity. This kind of environment is unsuitable for red spider mites and can play a preventive role to a certain extent. However, it cannot control them. To control red spider mites, you still need to spray pesticide in time.
3. Chemical control
To control red spider mites, you can use abamectin, pyridaben and other pesticides alternately, so as to avoid resistance developing. When spraying these pesticides, you must spray carefully and evenly, covering the front and back of the leaves, the stems and the soil, so as to avoid any slipping through the net and causing future trouble. At the same time, fallen dead branches and leaves should be collected promptly and burned in a centralized way, so that any remaining insects and eggs do not continue to cause harm.
Overall, the rose is a very fragile variety, and growing roses requires great care, so if you keep roses, you must always pamper them a lot!
Symptoms of rose pests and control measures; how to control rose aphids and red spider mites
What do you do when your lovely roses are attacked by pests? The leaves get bitten, with black spots plus holes, very ugly, right? Newly grown tender shoots get aphids, and you cannot bear to pinch them off; red spider mites appear and spots show up on the leaves. What should you do about these pests? Today the editor will introduce to you how to control rose aphids and red spider mites.
1. Rose aphids
The harm caused by aphids is both direct and indirect. The direct harm is: sucking the sap and nutrients from tender shoots, causing leaves and flower buds to become deformed and malnourished and affecting photosynthesis. The indirect harm is: piercing the surface of branches and leaves with their mouthparts and spreading bacteria and viruses, increasing the chance of infection by various diseases.
Aphid control is very simple: spray the plant surface with imidacloprid at 800-**** times dilution once every 7 days, and 2-3 times is enough.
2. Rose red spider mites (mites)
In the process of flower cultivation, the red spider mite is a common disease pest. This insect is very small, less than 1 mm, round or oval, orange-yellow or reddish-brown. Because it is small it is not easy to find, and once its damage is discovered, the flowers have often already suffered quite serious harm. This insect causes harm by piercing its mouthparts into the flower leaves and sucking the sap, destroying the chlorophyll of the flowers, making the leaves show grayish-yellow dots or patches, and the leaves become withered and yellow, and even fall off. The red spider mite has a strong reproductive capacity, and can reproduce one generation in as fast as about 5 days. This insect likes hot, dry environments, so under hot, dry climatic conditions it reproduces rapidly and causes severe damage.
Medication: Use abamectin or JINMANZHI at 1000 times dilution, spray the pesticide solution on both the front and back of the leaves and on the branches, use alternately 2 times, and it is easily dealt with.
Well, that is all for the introduction on how to control rose aphids and red spider mites. Everyone is welcome to keep following Duorou Huapu to learn more little tips about rose care.
Control methods for red spider mites on roses
Red spider mite is also called leaf mite. The red spider mite that harms roses is mainly the common red spider mite, namely the two-spotted spider mite. This pest is widely distributed in our country. It causes relatively great harm, so there must be control methods for rose red spider mites.
Control methods for rose red spider mites:
First, in the early stage, combine pruning to remove and burn the leaves with grayish-white spots.
Second, chemical control. You can choose 20% dicofol emulsifiable concentrate at 1000-1500 times dilution, Leba wettable powder at 1000-2000 times dilution, 73% propargite emulsifiable concentrate at 2000-3000 times dilution, etc., spraying once every 10-15 days, for 2-3 consecutive sprays, to achieve a relatively good effect.
In summary: for the control of red spider mites, measures should be adapted to local conditions, adhering to the principle of "prevention first, integrated control", with chemical control as the main method, supplemented by physical control, and at the same time taking care to make full use of natural enemy resources, so as to achieve a relatively ideal control effect.