What's the matter with the white frost on the leaves of Impatiens? What should I do?

What's the matter with the white frost on the leaves of Impatiens? What should I do?

1. What is the reason for the white frost on the leaves of Impatiens?

The white frost on the leaves of Impatiens is most likely caused by powdery mildew. This disease mainly harms leaves and tender shoots. It usually occurs in June every year, and by July there will be a layer of white powder on the leaves. In the later stage, it will slowly turn into yellow dots and the color will deepen, which is called dark brown. This is mainly caused by high temperature, high humidity and poor ventilation.

2. What to do if there is white frost on the leaves of Impatiens

If there is white frost on the leaves of Impatiens, it must be disposed of as soon as possible. All diseased leaves should be cut off and completely destroyed. If the disease is serious, the entire plant should be disposed of directly. Afterwards, you need to spray oxycarboxin to completely cure the disease, or you can use thiophanate-methyl, and spray it several times.

3. How to avoid white frost on the leaves of Impatiens

Now that we understand the reason why there is white frost on its leaves, we need to adjust the maintenance methods when caring for it in the later stage. It is best to pay attention to the density when planting, not too dense, so that all plants can be well ventilated and exposed to the sun. In addition, during normal management, you should apply fertilizer frequently and apply more phosphorus and potassium fertilizers to promote vigorous growth. Be careful not to use too much nitrogen fertilizer. Vigorous growth will enhance disease resistance and make it less susceptible to diseases.

<<:  What should I do if the leaves of Impatiens curl and dry up? What is the reason for the leaves curling?

>>:  What to do if orchids don’t bloom? How to make orchids bloom

Recommend

The efficacy and function of short-leaf tiger lily

1. For viewing This plant is divided into two var...

Where is Niu Dali suitable for planting?

Niu Dali Planting Place Rhizoma Dioscoreae is a d...

Can persimmon trees be planted in the yard?

Can I plant a persimmon tree in my yard? Persimmo...

How to care for dahlias

1. Water Dahlias prefer a humid environment and g...

When is the best time to sow watermelon?

Suitable time for watermelon planting Watermelon ...

How to grow Chinese evergreen in winter

1. Maintain temperature When caring for Chinese e...

The difference between Biguanghuan and branch Aixing

Green Ring Form The leaves of the green halo ring...

Potato planting time and method planting method steps

Potato planting time The planting time for potato...

Cultivation methods and precautions of black pine

1. Maintenance methods 1. Temperature: It is not ...

Which month is the best for planting allium? What season is it usually planted?

Which month is suitable for planting allium Alliu...

What to do if the new buds of the fortune tree wither

1. Increase the amount of water 1. Reason: When t...

What is rapeseed?

What is rapeseed? Rapeseed is a vegetable of the ...

When does Cymbidium bloom?

1. Time This flower is very popular in China, lar...