Planting Tips

Chapter 50

Flowers, like other plants, are often infected by pathogens or affected by adverse environmental conditions during their growth and development, resulting in poor growth, deformation and discoloration of leaves, or the formation of various disease spots on branches and leaves, and even wilting. Death, affecting the ornamental value of flowers, and causing economic losses, all of which are caused by diseases.

Flower diseases are divided into two categories: physiological diseases and infectious diseases.Physiological diseases are caused by unsuitable environmental conditions, such as too much or not enough water, too much or not enough light, too high or too low temperature, insufficient or imbalanced nutrition, and pollution from smoke and harmful gases.Infectious diseases are caused by biological infection. The organisms that cause flower diseases mainly include fungi, bacteria, viruses, nematodes, mycoplasma, etc. Among them, fungal infections are the most common.For physiological diseases caused by poor environmental conditions, as long as the cultivation management is improved in time to meet the requirements of flower growth and development, it will generally return to normal.The diseases infected by germs can spread rapidly under suitable environmental conditions, so they must be prevented and controlled in time.But these two types of diseases are closely related and mutually causal.When the growth of flowers is weak, it is often easy to cause diseases; sometimes flowers are attacked by insects, which can also lead to the occurrence of diseases.

(End of this chapter)