Common Diseases and insect pests of Flowers and their Control

Different flowers have different growth habits and different needs for the environment. Due to many inappropriate maintenance methods and seasonal reasons, flowers are harmed by diseases and insect pests, so what are the common diseases and insect pests of flowers and how to control them?

The common diseases and insect pests of flowers are powdery mildew, rust, black spot, leaf shrinking, yellowing, etc., as well as longicorn beetles, aphids, shellfish, beetles and other pests.

Control methods of Common Diseases of Flowers

The main results are as follows: 1. Keeping the environmental hygiene of flower cultivation can reduce the harm.

2, protect the plant, do not break the skin, be injured, beware of germs invasion.

3. Pre-disinfection of culture can kill germs and pests.

4. Strengthen daily management, keep proper water and fertilizer, smooth air, suitable temperature and daylighting, so as to make the plant grow healthily and control the breeding and spread of diseases and insect pests.

Flowers stand blight, when the temperature rises, in the environment of high temperature and high humidity, some seedlings and flowers with fragile roots are extremely vulnerable to the disease. When diseased seedlings are first found, they are irrigated with 1% ferrous sulfate or 200-400 times 50% Dysenammonium solution, 2-4 kg potion per square meter. Control watering in the young stage of the seedlings, so as not to make the soil too wet.

The control method of flower rust is to spray 15% trimethoprim 700-1000 times in the initial invasion period. The disease bud can also be removed and burned to put an end to the source of infection.

Powdery mildew of flowers, such as rose, impatiens and yellow clover, is easy to occur in May and June, causing leaves to turn yellow and new bud deformities. Prevention and control methods: pay attention to ventilation and light, less nitrogen fertilizer, more phosphorus and potassium fertilizer, the initial infection can be sprayed with 15% triadimefon 700-1000 times solution for prevention and control.

Control methods of common insect pests in flowers

The activity of flower aphids is obviously affected by air temperature. with the increase of air temperature, the reproduction of aphids is also speeded up. The control method is to spray 40% omethoate or 50% imidophos 1200-1500 times the water. A small amount of potted flowers can also be sprayed with 70-100 times neutral laundry powder.

The prevention and control method of flower red spider is to often rinse the front and back of the leaves with tap water, or spray or dip in 100-150 times the batter water that is boiled and cooled, and rinse again with clean water after a day or two, you can get obvious results.

According to its living habits, the control of flower scale insects can be manually cleaned and checked frequently before the eggs hatch, and can also be sprayed with 1000-1500 times of omethoate during the larval incubation period.