Why are my begonia leaves going Mouldy?

Why are my begonia leaves going Mouldy?

Begonias love good air circulation, therefore it is best to not crowd plants together. Poor air circulation amongst plants equals more humidity which results in Mildew formation. If the plants are grown in pots space them further apart. If they are grown indoors, run a fan near the plants or open a window.

Does my begonia have a fungus?

Identifying Powdery Mildew on Begonias A begonia with powdery mildew will have white, powdery or thread-like growths on the top surface of leaves. The fungus may additionally cover stems or flowers. The fungus feeds from the leaf cells, and needs the plant to survive.

What does powdery mildew look like on begonias?

The disease is easily recognizable as a white to gray powdery growth on leaves and sometimes stems and flowers. Powdery mildew may have little or no affect on the plant (other than aesthetic) or it may cause infected leaves to distort, discolor, wither,and defoliate prematurely.

How do I get rid of fungus on begonias?

Use a fungicide that is appropriate for begonias every week or so. Alternate fungicides to prevent fungi from building up resistance. You can also use biological control as begonia botrytis treatment. Botrytis of begonia was reduced when Trichoderma harzianum 382 was added into a sphagnum peat potting media.

How do you treat begonia leaf rot?

There is no product for effectively treating begonia pythium rot. You should remove infected plants from the soil and dispose of them.

What’s wrong with my begonias?

Overwatering and underwatering are the most common causes of a begonia wilting. Begonias wilt quickly once their soil dries out, but maintaining excessively wet soil can also result in dramatic wilting due to root rot. Temperature stress, transplant shock, pests, and disease can also cause drooping.

How do you clean begonia leaves?

The best ways are to wipe them with a cloth, duster or brush, rinse them with water, spray them with a dilute soap solution or use compressed air to remove dirt. Cleaning your indoor plant leaves doesn’t have to be a difficult job.

Can powdery mildew be wiped off?

Note: powdery mildew can be wiped off the leaves for a quick visual check. These fuzzy mycelium patches produce airborne spores that rapidly attack adjacent plants; mildew will eventually coat leaves and entire plants, reducing photosynthesis, plant vigor and bud quality.

How do you treat bacterial leaf spots on begonias?

Cut off and discard infected plant parts. Disinfect tools after working with diseased plants. Remove and destroy severely infected plants and discard the soil immediately surrounding them. Avoid wetting or splashing the leaves.

How do I get rid of begonias fungus?

What diseases do begonias get?

Begonia Diseases

Disease Pathogen/Cause
Powdery Mildew Oidium
Pythium Rot Pythium
Rhizoctonia Crown Rot Rhizoctonia
Viruses Impatients necrotic spot, tobacco ring spot, broadbean wilt, cucumber mosaic, tobacco necrosis virus.

How do you treat begonias fungus?