Flowers first prevent diseases and insect pests in summer

Leaves of Chinese rose with brown spot

Due to the high temperature and humidity in summer, the resistance of plants decreases, coupled with some diseases and insect pests, it is easy to reproduce under high temperature, and the threat of diseases and insect pests is greater than that in other seasons. Therefore, in summer, the prevention and control of diseases and insect pests is a top priority.

For people recommended by flower cultivation, the first thing to make clear is that diseases and pests are two different concepts, and it is important to keep in mind that insect control drugs should not be used to prevent and treat diseases and confuse each other.

With the rise of temperature and the increase of Rain Water, the pathogen infection which is easy to cause plant disease follows. In the prevention and control of diseases: we must give priority to prevention and treatment as a supplement. Diseases are easy to occur under the conditions of high temperature, high humidity and lack of ventilation and the source of bacterial infection. Therefore, plants and flowers, whether planted on the ground or in pots, should first consider its ventilation and ventilation conditions, and then selectively prescribe the right medicine for various diseases according to the disease resistance of flowers and plants. In the use of the proportion of pesticides for disease prevention and treatment, we must adopt a scientific attitude, strictly match and put prevention in the first place. In other words, under the climatic conditions of high temperature and humidity, even if there is no disease, anti-bacterial drugs should be sprayed regularly.

In addition, for rose, rhododendron, orchid and other flowers that are prone to brown spot and anthracnose, we should not only prevent them first, but also regularly dilute methyl thiophanate or chlorothalonil with water in a ratio of about 1 to 400 and spray the foliage of the plants. Especially when the temperature reaches 25 ℃-35 ℃, or in the rainy season, when the air humidity is high, be sure to spray every 7-10 days.

After the rainstorm, the outdoor plants, although they have been treated with anti-bacterial potions, have been washed by Rain Water and must be re-sprayed. Once the plant disease occurs, the diseased leaves and branches should be cut off in time to prevent cross-infection. Otherwise, the occurrence of diseases will not only lead to poor plant growth, or even death.

Insect pests often occur because insect larvae feed on and chew branches and leaves. As the saying goes, "the grass should be pulled up and the insects should be cured early." Therefore, elderly friends who like to grow flowers and recommend them also need to master the exact incubation period of all kinds of pests, such as aphids, butterflies, night moths, red spiders and other larvae, and spray them in time. For all kinds of pests that harm flowers and plants, especially those with short reproductive cycle, in addition to timely pest control, it must be strictly proportioned according to the concentration and action of pesticides to prevent drug damage. Because the insecticidal drugs are relatively toxic, we should also pay attention to personal safety when using them. We must wear gloves and masks to prevent accidents. After spraying insecticides, you should also clean your hands, face and clothes with soap in time.

In addition to chemical control, attention should also be paid to the environmental hygiene around the plant, such as the surrounding weeds, withered branches and leaves in the flower field, etc., which are the best places for germs and many pests to hide and breed, and should be cleaned up in time and then incinerated.

Flowers first prevent diseases and insect pests in summer

Leaves of Chinese rose with brown spot

China Garden Network, June 10: due to the high temperature and humidity in summer, the resistance of plants has declined, coupled with some diseases and insect pests, they are easy to reproduce under high temperature, and the threat of diseases and insect pests is greater than that in other seasons. Therefore, in summer, the prevention and control of diseases and insect pests is a top priority.

For people recommended by flower cultivation, the first thing to make clear is that diseases and pests are two different concepts, and it is important to keep in mind that insect control drugs should not be used to prevent and treat diseases and confuse each other.

With the rise of temperature and the increase of Rain Water, the pathogen infection which is easy to cause plant disease follows. In the prevention and control of diseases: we must give priority to prevention and treatment as a supplement. Diseases are easy to occur under the conditions of high temperature, high humidity and lack of ventilation and the source of bacterial infection. Therefore, plants and flowers, whether planted on the ground or in pots, should first consider its ventilation and ventilation conditions, and then selectively prescribe the right medicine for various diseases according to the disease resistance of flowers and plants. In the use of the proportion of pesticides for disease prevention and treatment, we must adopt a scientific attitude, strictly match and put prevention in the first place. In other words, under the climatic conditions of high temperature and humidity, even if there is no disease, anti-bacterial drugs should be sprayed regularly.

In addition, for rose, rhododendron, orchid and other flowers that are prone to brown spot and anthracnose, we should not only prevent them first, but also regularly dilute methyl thiophanate or chlorothalonil with water in a ratio of about 1 to 400 and spray the foliage of the plants. Especially when the temperature reaches 25 ℃-35 ℃, or in the rainy season, when the air humidity is high, be sure to spray every 7-10 days.

After the rainstorm, the outdoor plants, although they have been treated with anti-bacterial potions, have been washed by Rain Water and must be re-sprayed. Once the plant disease occurs, the diseased leaves and branches should be cut off in time to prevent cross-infection. Otherwise, the occurrence of diseases will not only lead to poor plant growth, or even death.

Insect pests often occur because insect larvae feed on and chew branches and leaves. As the saying goes, "the grass should be pulled up and the insects should be cured early." Therefore, elderly friends who like to grow flowers and recommend them also need to master the exact incubation period of all kinds of pests, such as aphids, butterflies, night moths, red spiders and other larvae, and spray them in time. For all kinds of pests that harm flowers and plants, especially those with short reproductive cycle, in addition to timely pest control, it must be strictly proportioned according to the concentration and action of pesticides to prevent drug damage. Because the insecticidal drugs are relatively toxic, we should also pay attention to personal safety when using them. We must wear gloves and masks to prevent accidents. After spraying insecticides, you should also clean your hands, face and clothes with soap in time.

In addition to chemical control, attention should also be paid to the environmental hygiene around the plant, such as the surrounding weeds, withered branches and leaves in the flower field, etc., which are the best places for germs and many pests to hide and breed, and should be cleaned up in time and then incinerated.

Common diseases and insect pests in summer flower production

Flowers (Flower ['flauflowers]; plural: Flowers), which are used to appreciate plants, are abnormal short branches with reproductive function, and there are many kinds of them.

A typical flower bears calyx, petals, and stamens and pistils that produce germ cells on a limited growth axis. Flowers are composed of Corolla, calyx, receptacle and stamens, with a variety of colors, some of which are very gorgeous and fragrant.

In summer, flower production should also pay special attention to the prevention and control of diseases and insect pests. Due to the decline of plant resistance in the high temperature season, coupled with some diseases and insect pests, it is easy to reproduce under high temperature conditions. Therefore, the threat of diseases and insect pests is greater than other seasons. The main pests of summer flowers are mites, aphids, leaf-eating moths, etc., and the diseases that should be controlled are root rot, leaf spot, anthrax and so on. To prevent and cure diseases and pests, in addition to chemical control, emphasis should be placed on environmental hygiene, such as the surrounding weeds, withered branches and leaves in the flower land, etc., these are the best places for bacteria conidia and many pests to hide and reproduce, and should be cleaned up in time and then incinerated. At the same time, summer is also a good time to use land for stubble disinfection. In addition to chemical disinfection, film steaming is a good way to save money and effort. The specific approach is: after ploughing, the land is watered once, and then the surface is covered with a layer of black plastic film and sealed with soil all around. Under the sun exposure, the soil temperature under the film can reach more than 50 ℃. After a period of steaming, most harmful microorganisms and pest eggs can be killed, and a better disinfection effect can be obtained.