Diseases and Pests of Gerbera and Their Control

Diseases and their control of gerbera

Spot disease

Spot disease is a bacterial disease. Generally, it is germs, which are spread by means of rain and insects. When spot disease occurs, the diseased leaves need to be removed in time and sprayed with a solution of methyl thiophanate wettable powder for treatment.

Mosaic

Gerbera can also suffer from mosaic disease, which can cause the leaves of gerbera to fade green, become deformed, have spots, and affect flowering or even kill the plant. If mosaic disease occurs, it is necessary to spray pesticides in time for treatment.

powdery mildew

When gerbera daisy breaks out powdery mildew, it mainly harms the leaves, with white spots appearing and gradually expanding. Powdery mildew of gerbera is mostly caused by pathogens, which are prone to break out when the temperature is high and ventilation is poor. When powdery mildew occurs, the growth environment needs to be improved in time and pesticides should be sprayed, such as 1500 times diluted 70% methyl thiophanate.

Leaf spot

Leaf spot is also a common disease of gerbera, and leaf spot also causes lesions on the leaves. Leaf spot is usually caused by environmental factors, such as insufficient light or poor drainage. If leaf spot occurs, you can use carbendazim to spray.

Botrytis cinerea

Gray mold is also caused by pathogens and is very harmful. It is more likely to occur when the humidity is high. Controlling humidity is the key to prevention and control. Ventilation can be strengthened, and thiophanate-methyl solution is needed for prevention and control in the early stages of the disease.

In addition, gerbera also has root rot, viral disease, nuclear fungal disease, and blight. Treatment is required according to the circumstances of the disease.

Gerbera daisy pests and their control

Whitefly

Whitefly is a common pest of gerbera. If you find the pest, you need to clean the growth environment of gerbera in time, choose the pesticide and use it correctly to avoid the whitefly repellent being ineffective due to pesticide resistance.

Thrips

Thrips are also a common pest of gerbera. When thrips are found, steaming pesticides is a good method. You can use DDT or imidacloprid for spraying.

cabbage caterpillar

The damage caused by cabbage loopers mainly includes larvae and older larvae. It is necessary to spray the pests in time and spray several times to prevent the damage from further expanding.