With the arrival of spring, everything recovers, and various plants also usher in the peak season of growth. In this vibrant season, a tiny pest - aphids, begins to cause considerable trouble to the growth of plants. Aphids are known for their rapid reproduction and strong adaptability. If not controlled in time, they will severely affect the growth of plants. How to effectively prevent and control the invasion of aphids? Here are some practical methods.
Understand the habits of aphids and take preventive measures1. Reproduction characteristics of aphids
Aphids have a strong reproductive capacity and can reproduce multiple generations in a year. Female aphids can reproduce asexually and lay eggs directly, while male aphids reproduce with females through mating. When preventing and controlling aphids, it is necessary to take effective measures based on their reproductive characteristics.
2. Habits of aphids
Aphids mostly absorb sap from the tender leaves, stems, and buds of plants, causing the plants to grow poorly, the leaves to turn yellow, wither, and even die. Understanding the habits of aphids can help us better prevent and control their invasion.
Preventive measures1. Choose plant varieties resistant to aphids
When purchasing plants, try to choose varieties that are more resistant to aphids. These varieties have some resistance to aphids and can reduce the damage caused by them.
2. Strengthen plant maintenance and improve the plant's resistance to diseases
Reasonable fertilization and watering, keeping the soil moist, can help improve the plant's resistance to diseases. Timely pruning of weak and diseased branches and leaves can reduce the living space for aphids.
3. Manual removal
In the early stage of aphid infestation, manual removal can be performed. Tools such as brushes and water jugs can be used to brush or wash the aphids off the plants. This method is simple and easy but requires a lot of manpower.
Chemical control1. Choose the right insecticide
When aphids are severe, efficient and low-toxicity insecticides can be used for control, such as imidacloprid, thiacloprid, and flonicamid. When using insecticides, the following points should be noted:
(1) Strictly follow the instructions and avoid excessive spraying.
(2) Alternate the use of different types of insecticides to reduce the resistance of aphids.
(3) Spray during the peak period of aphid infestation to improve control efficacy.
2. Biological control
Use natural enemies such as predatory ladybirds and aphid parasitizing wasps to control aphids. They can effectively control the number of aphids.
Aphids are major pests in the growth process of plants. Preventing and controlling aphids requires us to understand their habits and take effective measures. By choosing aphid-resistant plant varieties, strengthening plant maintenance, manual removal, chemical control, and biological control, we can effectively prevent and control the invasion of aphids and ensure the healthy growth of plants.
References:
[1] Zhang Lili, Li Xiaofeng, Wang Lihua. Research on the control technology of plant aphids [J]. Agricultural Science and Technology Communication, 2018, (03): 1-3.
[2] Zhao Ruihua, Zhang Wenhua, Li Zhiqiang. Discussion on the control methods of plant aphids [J]. Plant Protection, 2017, (02): 1-3.
[3] Chen Xiaoyan, Wang Hongbo, Yang Yongzhong. Research progress on biological control of plant aphids [J]. Biotechnology Bulletin, 2016, (12): 1-5.