What about yellow flowers?

There are many reasons for yellow leaves of flowers, but most of them are caused by too much watering, too strong light, leaf blight, improper use of fertilizer and so on. If it is caused by too much watering, it is necessary to control the water in time and discharge excess water; caused by too strong light, it needs to be moved to a cool place for maintenance to avoid the sun exposure; caused by leaf blight, it is necessary to clean up the diseased leaves in time and spray 1000 times of carbendazim wettable powder; caused by improper use of fertilizer, it is necessary to control the amount of fertilization, not too much at a time.