Prevention skills of Violet Diseases and insect pests in preventing and controlling Plant Diseases

Common diseases and pests in violets include downy mildew, Fusarium wilt, Verticillium wilt, mosaic, leaf spot, and diseases caused by aphids. Do not see do not know, a look is really startled, a small plant, there will be so many diseases. So how to control Violet diseases and insect pests? What are the correct methods? Let's get to know it.

The main results are as follows: 1. The prevention and control of downy mildew is mainly due to the infection of bacteria in the soil, which can be caused by over-dense sowing or poor drainage. The disease is the appearance of light green spots on the leaves, yellowing in the later stage, and a white frost layer on the back. Prevention and control methods are: Violet sowing gap is slightly larger, to ensure good ventilation, pay attention to drainage, the water content in the soil is appropriate. For diseased plants, it is necessary to remove them in time and spray a little fungicide aqueous solution around them.

2. The control of Fusarium wilt is caused by Fusarium oxysporum. The symptoms are as follows: the plant becomes shorter and shrinks, there are obvious veins on the leaves of the young plants, and the leaves of the larger plants droop. Control method: soak the seeds in warm water of 50-55 degrees for a few minutes to kill germs, while the soil can be disinfected with 1000 times potassium permanganate solution before planting. Plants that have been infected need to be removed in time.

3. Prevention and control of mosaic disease caused by Daphne genkwa mosaic virus, which is transmitted by aphids and can also be transmitted by juice. Control method: the infected plants need to be isolated in time, and then sterilized with 1.2% nicotinine 2000-4000 times solution.

4. The prevention and control of insect pests is mainly caused by aphids. Aphids pierce into the plant tissue to absorb juice, making the damaged parts appear macula or black spots, while the damaged leaves will shrink and fall off in the later stage, and the buds will be deformed. Control method: remove weeds around the plant, spray 40% dimethoate or omethoate 1000-1500 times solution to kill insects. The prevention and control of the above several kinds of violet diseases and pests are only common plant diseases, and there are other plant diseases that we need to understand and do a good job in prevention and control. Do a good job in the prevention and control of diseases and insect pests in time, let violets grow healthily and bloom beautiful flowers, while you harvest the beautiful scenery, you also get a small sense of achievement.

| | Family Garden | sunken Garden | balcony Garden | |

What diseases are easy to get in violets? What are the techniques and methods of pest control in Violet?

When it comes to violets, I believe we are no stranger to them. Violets are common grass flowers with long flowering period, charming fragrance and beautiful colors. Most of them are purple, and their ornamental value is very high. Many flower lovers have also had the experience of cultivating violets, so do you know what diseases violets are easy to get? Do you know what techniques and methods are available for pest control in Violet? Today, the editor will give you a detailed introduction. Let's study with the editor.

Fusarium wilt

The disease is caused by Fusarium oxysporum. The main symptoms are plant dwarfing and wilting. The young plants produced obvious veins on the leaves and caused the leaf sagging on the larger plants.

Prevention and cure method

The seeds can be soaked with 50-55 ℃ warm water for 10 minutes, which can kill the germs carried by the seeds; the soil used for growing violets should be disinfected and reused, and the medicament can be used 1000 times potassium permanganate solution; if seriously infected plants are found, they should be removed and burned immediately to prevent transmission to other healthy plants.

Verticillium wilt

The disease is characterized by yellowing and wilting of the lower leaves of the plant. The diseased plant was seriously dwarfed and the tissue of bundle management changed color rapidly. The method of control is the same as that of Violet Fusarium wilt. Violet white rust is caused by white rust. After the Violet plant is infected, the diseased part turns yellow and later becomes brown. Chains of colorless spores are produced under the epidermis of the leaves.

Prevention and cure method

The disease is also seriously harmful to other cruciferous plants. Violets can spread to each other if placed together with other cruciferous plants, so weeds of Cruciferae should be eradicated and isolated from other cruciferous plants; Violet plants should be sprayed with Baume 3-4 degrees stone sulfur mixture to prevent the disease, and 65% zinc wettable powder 500-600 times or rust sodium 250-300 times should be sprayed during the growing season.

Mosaic disease

The disease is caused by Daphne mosaic virus, also known as cabbage virus 1. The virus is transmitted by 40 and 50 species of aphids, mainly peach aphids and vegetable aphids, and can also be transmitted through juices. The virus can harm many cruciferous plants and other non-cruciferous plants. Therefore, it should be isolated from these plants.

Prevention and cure method

Isolated from other poisonous plants; aphids should be eliminated in time. 1.2% nicotinine 2000-4000 times or 10% imidacloprid 2000 times can be sprayed and controlled.

Epidemic disease

Violet leaves show a large round disease spot, soft rot when wet, bluish white when dry, easy to crack late. The disease of the stem is watery and dark green, and the diseased part is generally constricted, but the vascular bundle does not change color, and the leaves above the affected part wilt. If there are several stem diseases in the plant, the whole plant will wilt and wither quickly. The seedlings are susceptible, the growth point is often dark green, water stains, and dry tip after soft rot.

Prevention and cure method

In addition to the selection of disease-resistant varieties and rotation cultivation and management, the use of drugs for the disease should be emphasized in time, and the central disease plants should be used immediately.

Insect pest

Mainly aphids, accumulating on leaves, buds and buds, piercing and sucking mouthparts into plant tissues to absorb juice, resulting in macular or black spots in the damaged parts, shrinking and shedding leaves, shrinking or abnormal growth of buds, and death of plants in severe cases. Aphids can secrete honeydew, leading to bacterial growth, soot disease and other diseases. [4]

Prevention and cure method

Eliminate by removing nearby weeds; spray 40% dimethoate or omethoate 1000-1500 times, or fenvalerate 2000-3000 times, or 80% dichlorvos 1000 times, etc.

That's all I know about violets today. I hope it will be helpful for flower friends to read this article. If you want to know more about violets, please continue to follow the succulent flower beds and we will provide you with more related knowledge!

Violet planting skills how to Control Violet Diseases and insect pests

Violets grow up naturally in the wild, and there will be a lot of problems when they are transplanted indoors, which is related to their adaptability. Plants growing in the wild are more resistant to wind and rain, and there are more nutrients in the field, making it easier to survive. Growing indoors is greatly affected by the environment, and the resistance is much lower. How can violets be planted to grow better and produce more beautiful flowers? Come and study today.

Planting skills of Violet

1. Reproductive characteristics

Violets are also propagated by seeds, through sowing, and then take root and sprout, blossom and bear fruit. Violet is cold-resistant and afraid of high temperature. it belongs to winter and spring plants and begins to sow after September every year. The seedlings can emerge after half a month, and blossom for 3 months.

2. Soil requirements

Violet prefers neutral and alkaline soil, if in acidic soil, it is difficult to germinate and the seeds will go bad. In addition, sudden drainage is better, and too much water accumulates, which can cause seeds to rot, or germinated violets to rot.

3. Temperature requirement

Violet is a cold-loving plant. It can grow well only in places with low temperature and good ventilation. If the temperature is relatively high or the air is relatively dry, it is easy to get disease. Violet is cold-resistant and does not like shade, so you can plant it in a place with better light.

4. Training requirements

After planting, violets need to be watered from time to time, and be careful that the amount of water is not too large; when violets take root and sprout, they need to add a little flower fertilizer after a period of time to supplement the nutrition in the soil and be careful when loosening the soil. don't destroy the rhizome, because violets are taproot plants. When the plant grows up, we should pay attention to insect control. Violets have a lot of diseases and should be prevented in time.

If you master the correct method of planting violets and know how to plant violets, you can grow beautiful violets. Put these plants on the bedroom windowsill, balcony, is also a beautiful scenery. It plays a role in embellishing our room, but violets can also get sick, so how to control violet diseases and insect pests?

Control of Violet Diseases and insect pests

Common diseases and pests in violets include downy mildew, Fusarium wilt, Verticillium wilt, mosaic, leaf spot, and diseases caused by aphids. Do not see do not know, a look is really startled, a small plant, there will be so many diseases. So how to control Violet diseases and insect pests? What are the correct methods?

1. Control of downy mildew.

The disease is mainly caused by germs in the soil that infect the roots, which can be caused by over-dense sowing or poor drainage. The disease is the appearance of light green spots on the leaves, yellowing in the later stage, and a white frost layer on the back. Prevention and control methods are: Violet sowing gap is slightly larger, to ensure good ventilation, pay attention to drainage, the water content in the soil is appropriate. For diseased plants, it is necessary to remove them in time and spray a little fungicide aqueous solution around them.

2. Control of Fusarium wilt.

Fusarium wilt is caused by Fusarium oxysporum. Its symptoms are as follows: the plant becomes shorter and shrinks, there are obvious veins on the leaves of the young plants, and the leaves of the larger plants are sagging. Control method: soak the seeds in warm water of 50-55 degrees for a few minutes to kill germs, while the soil can be disinfected with 1000 times potassium permanganate solution before planting. Plants that have been infected need to be removed in time.

3. Prevention and treatment of mosaic disease

Mosaic disease is caused by Daphne mosaic virus, which is transmitted by aphids and can also be transmitted by juices. Control method: the infected plants need to be isolated in time, and then sterilized with 1.2% nicotinine 2000-4000 times solution.

4. Pest control

Insect pests are mainly caused by aphids, which pierce into the plant tissue to absorb juice, making the damaged parts appear macula or black spots, while the damaged leaves will atrophy and fall off in the later stage, and the buds will also be deformed. Control method: remove weeds around the plant, spray 40% dimethoate or omethoate 1000-1500 times solution to kill insects.

The prevention and control of the above several kinds of violet diseases and pests are only common plant diseases, and there are other plant diseases that we need to understand and do a good job in prevention and control. Do a good job in the prevention and control of diseases and insect pests in time, let violets grow healthily and bloom beautiful flowers, while you harvest the beautiful scenery, you also get a small sense of achievement.

After reading the above introduction on violet planting techniques and pest control, do you know more about violet planting techniques? if you want to know more about violet planting techniques, please continue to pay attention.