Common diseases and insect pests of lilies and their control measures

Lily is a very good meaning of the flower species, from its name can be seen that it is a beautiful flower, and lily color is pure white, very pure, many people like to cultivate potted plants at home, in the process of cultivation some novices will occur because of poor care and some other problems and pests, then the following handsome will give you an introduction to lily have what diseases and insect pests and control measures!

1. Penicillium disease

Penicillium disease is a bacterial disease. The pathogen erodes lily leaves. Once infected, it will cause some white spots on the leaves. These spots will gradually enlarge and develop into patches. Finally, the pathogen invades the basal plate of the bulb. Once there is no basal plate, the bulb will lose its own value, resulting in slow plant holy war. Moreover, the pathogen will also infect each other. We have to store the seeds at the lowest temperature. Infected germs must be soaked in aqueous solutions of fungicides such as chlorothalonil, chlorothalonil and carbendazim for more than half an hour. After soaking, they can be planted.

2. Rhizoctonia

This pathogen mainly infects only the leaves that harm the soil. The leaves will appear pale brown spots. If it is slight, it will only have a little impact. However, if the infection is serious, it will affect the growth. Then the leaves in the underground part will rot and finally wither. At this time, we should use soil disinfectant to disinfect the infected soil. For the disinfected soil, we should ensure that it cannot be infected. Otherwise, it means no disinfection.

3. Phytophthora

Phytophthora is a kind of bacteria that can make plants suddenly wither. It will make plants rot, and the stems will also rot. After decay, they will turn black and brown, and then spread around. We can use soil disinfectant to disinfect the soil first, and then use disinfectant to control foot rot. The drainage of the soil is good. In addition, we should prevent crops from being wet all the time after watering. In summer, the temperature of the soil should be kept at a minimum to prevent high temperature from breeding germs.

4. Pythium

Pythium is an endemic pathogen. It can attack not only a single plant, but also all plants in a range. The diseased plants will inhibit their development, resulting in short plants, yellow leaves and dried flower buds. If the plants are pulled out, they will see obvious light brown rot spots on the rhizomes. Maybe they have become completely soft and rotten. We should spray soil disinfectant to disinfect the soil, and spray fungicides to avoid rot mold on the crops. Spray water before spraying drugs, which is better for insecticidal effects, preferably in the evening.

The above is common lily pests and control measures, we have not learned it? For more information, please continue to pay attention to the pro-agricultural network!