How to prevent and control pests and diseases in household flowers? These key points must be mastered
1. Prevention is more important than cure
Prevention is fundamental; cure is a measure taken only when unavoidable. Once flowers suffer from pests and diseases, even if cured, the plant's growth and development will still be affected to some degree.
2. Timely prevention and control of flower pests
Pests and diseases all go through a process from the initial stage to the peak stage. Once pests and diseases are found, corresponding measures must be taken to eradicate them at the initial stage.
3. Correctly master the use concentration and mixing principles of pesticides
If the pesticide concentration used is excessive, flowers are prone to pesticide damage. Some pesticides can be mixed and used together, while others cannot be mixed. Therefore, before use, the mixing principles of pesticides should be understood; otherwise, the purpose of preventing and controlling pests and diseases cannot be achieved.
Key points for preventing and controlling pests and diseases in household flowers
Today we will introduce the key points for preventing and controlling pests and diseases in household flowers. Let's take a look.
1. Prevention is more important than cure
Prevention is fundamental; cure is a measure taken only when unavoidable. Once flowers suffer from pests and diseases, even if cured, the plant's growth and development will still be affected to some degree.
2. Timely treatment of pests and diseases
Flower pests and diseases all have a process from initial outbreak to peak stage. Once pests and diseases are found, corresponding measures must be taken to eradicate them at the initial stage.
3. Correctly master the use concentration and mixing principles of various pesticides
If the pesticide concentration used is excessive, it is easy to cause pesticide damage to flowers. Some pesticides can be mixed and used together, while others cannot be mixed. Before use, the mixing principles of pesticides should be understood; otherwise, the purpose of preventing and controlling pests and diseases cannot be achieved.
Key points for preventing and controlling seedling pests and diseases in summer
In summer, temperatures are high and humidity is high, especially after the plum rain season when thunderstorms occur, and seedling pest and disease damage is most severe. This is particularly important for plots with high density, poor ventilation, and a high groundwater level, so this period is the key season for pest and disease control. Below are several methods recommended for controlling common pests and diseases:
I. Diseases
1. Rose and azalea: powdery mildew and black spot. Once they occur, plants become short and stunted, not luxuriant, branches develop abnormally, they cannot bloom, or they produce deformed flowers. In severe cases, leaves shrivel and dry up, affecting plant growth and even causing the whole plant to die.
2. Camellia: leaf spot and anthracnose are common diseases that occur from time to time in various places, sometimes very seriously. Affected plants lose ornamental value and cause economic losses.
3. Magnolia: red star disease and leaf spot. When severe, this disease causes most leaves or entire leaves to wither and blacken, affecting plant growth.
Commonly used agents: 70% thiophanate 600-800 times, 50% carbendazim 500-600 times, 15% triadimefon 2000-2500 times, 62.25% Xiansheng 400-600 times for spray control. Alternating use gives better results.
II. Pests
1. Scale insects normally damage boxwood, cherry blossoms, camellia, oleander, podocarpus, and others. Scale insects are the most common pests on flowers. They normally gather on branches and leaves; adults and nymphs use their specialized mouthparts to suck sap, causing branches and leaves to wither and even the whole plant to die, and they can induce sooty mold, causing great harm.
Control agents: 20% Jie Shashou 1000-1500 times, 80% emulsifiable concentrate 800-**** times, Longjian 1000-1500 times, Jiebao 1500-2000 times. Spraying is required during the peak hatching period of eggs, and spraying must be uniform and thorough. If the waxy shell has already formed, spraying is unlikely to be effective.
2. Red spider mite is a type of mite. It normally damages flowers such as osmanthus, dragon juniper, azalea, crabapple, and citrus.
Control agents: 20% amitraz 1000-1500 times, 73% propargite emulsifiable concentrate 2000-3000 times, Longjian 1000-1200 times. Alternating use of these agents all has a certain effect.