What is the function of Qingyuan?
Main text introduction: What are the experiences of Qingyuan in green plant maintenance, and the specific details are as follows:
Recently, many friends have noticed that their roses have many yellow leaves, with black spots all over the yellow leaves. Some leaf tips look like they have been burned, and white substances can be seen in the withered areas. All of these are caused by diseases. In late autumn and early winter, roses are prone to black spot disease and sooty mold disease, and red spiders will also hide in the form of eggs to hibernate for the winter. If you want fewer plant diseases and pests in the garden next year, it is very important to do a good job of cleaning the garden now.
I. What is Qingyuan?
As the name implies, Qingyuan means to clean our garden, removing garbage and fallen leaves to reduce the hiding places for pathogen spores and insect eggs, while also killing pathogens, pests, pathogen spores, and insect eggs in the garden.
II. What is the function of Qingyuan?
Many plants are dormant in winter, and pathogens and pests are also mostly in a low-frequency activity or dormant state. Cleaning and spraying drugs to kill diseases and pests at this time can greatly reduce the incidence of diseases and pests next year.
III. How to clean Qingyuan?
How to clean Qingyuan correctly? It's not just about spraying some medicine. We need to do two steps properly.
1. -- Clean up weeds, fallen leaves, and garbage --
In autumn and winter gardens, there are inevitably many fallen leaves, weeds, and withered grass, and corners often have accumulated silt. When cleaning the garden in winter, you should first clean up the fallen leaves and weeds, because many pathogens and insects will hide in fallen leaves and withered grass to hibernate. Cleaning up these fallen leaves, withered grass, and accumulated silt on the ground not only makes our garden clean but also removes the hiding places for pathogens and pests to hibernate.
2. -- Correct use of lime sulfur mixture --
After cleaning the environment, using lime sulfur mixture correctly can kill pathogens and pests, and insect eggs lurking on plants, making the cleaning more thorough.
This winter, the temperature has been relatively high. Can lime sulfur mixture be used now? The answer is yes, but it is important to adjust the concentration of the lime sulfur mixture according to the temperature of your area.
Taking a 29% lime sulfur mixture aqueous solution as an example:
In areas where the daytime temperature is still above 20 degrees Celsius, it is recommended to control the concentration of lime sulfur mixture at 200-300 times.
In areas where the temperature is between 10-20 degrees Celsius, it is recommended to use a concentration of 100-150 times.
In areas where the temperature is below 10 degrees Celsius, it is recommended to use a concentration of 50-80 times.
The activity of lime sulfur mixture changes with temperature. The higher the temperature, the higher the activity, and the lower the concentration used. The lower the temperature, the lower the activity, and the higher the concentration needs to be. Therefore, using lime sulfur mixture at this time is very effective and saves time.
Lime sulfur mixture is recommended to be used 3-4 times throughout the winter to early spring before plants germinate for a more thorough cleaning. When spraying lime sulfur mixture, the following points should be noted to avoid affecting the use.
1. -- Use on consecutive sunny days --
Lime sulfur mixture should be sprayed on consecutive sunny days. If it rains within 10 days after spraying, it is recommended to spray again on a sunny day.
Lime sulfur mixture has a strong odor and should be sprayed on windless days. Wear protective gear and a mask when spraying to avoid getting the medicine on you and having an unpleasant smell.
2. -- Prohibited for annual herbs --
Lime sulfur mixture is an economical, low-toxic, and residue-free preparation that can also be used in vegetable gardens and fruit trees. However, it should be noted that annual herbs and succulent plants are prohibited from using it as it can easily burn the leaves. Deciduous and evergreen shrubs can use it, and hydrangeas can also be used.
3. -- Prohibited for root irrigation --
Lime sulfur mixture is a strong alkaline preparation and must not be used for root irrigation as it can damage the soil pH and easily burn the roots. Just spray evenly on the branches, leaves, and soil surface.
The introduction above about what Qingyuan is, what the function of Qingyuan is, and how to clean Qingyuan are for netizens to refer to and learn from.