Diseases and Pests of Phlox and Their Control

Diseases of Phlox

Anthracnose of Phlox

The most common disease of philadelphus is anthracnose, which is caused by insufficient light, poor ventilation, excessive nitrogen fertilizer, etc. These conditions can cause anthracnose in philadelphus.

Symptoms of Anthracnose: Anthracnose of Phlox will cause water-soaked yellow spots to appear on the leaves, with grayish white and cloud patterns in the middle of the leaves. In the later stages, these spots will turn into small black spots, causing the plant to dry up.

Prevention and Control of Anthracnose of Phlox

Prevention and control methods of anthracnose of Phlox

In the early stage of the disease, 80% of Anthraquinone WP or 50% of Carbendazim WP should be sprayed on the leaves once every 10 days, and three or four times in a row will be enough.

When applying fertilizer during normal maintenance, pay attention to the balance of nitrogen, phosphorus and potassium, and make sure to place it in a place with sufficient light and good ventilation.

Pests of Phlox

Scale Insects of Phlox

The causes of scale insect diseases in Phlox are poor ventilation, poor light, high temperature and high humidity. Under these conditions, the plants are most susceptible to scale insect diseases.

Symptoms of scale insect disease: They will devour the leaves and cause poor plant growth.

Control of scale insects on Phlox

Methods for controlling scale insect diseases of Phlox: When the larvae are hatching, spray the plants with 1500 times diluted 25% cypermethrin wettable powder, 2000 times diluted 40% sulfamethoxam, or 1000 times diluted 40% omethoate emulsifiable concentrate to kill the scale insects directly.

Or you can catch the insects manually and then spray them with medicine to completely eliminate the pests and diseases.

Okay, the editor has told you the method, quickly save your diseased plants.