Is powdery mildew harmful to eat?

The fungus itself is not toxic, but it ruins the flavor and health of the plant. It is best to avoid eating heavily infected pods.

Does sun help with white spots?

Yes, full sun helps keep the leaves dry and discourages fungal growth. Ensure your peas get at least 6 to 8 hours of direct sunlight daily.

Pea: spots, causes and fixes

Check these first

Rub the white spot to see if it wipes off like dust.
Check if the spots are appearing on older leaves first.
Observe if the plants are crowded or lack airflow.

Likely causes

Powdery mildew
Most likely
How to tell: Leaves look like they have been dusted with flour or talcum powder. The spots eventually spread to cover the entire leaf surface.
What to do: Remove the most heavily infected leaves to reduce the spread of spores. Spray the remaining foliage with a mixture of 1 tablespoon of baking soda in 1 gallon of water.
High humidity
Possible
How to tell: The air is stagnant and the leaves stay wet for too long after watering. Fungal growth appears rapidly across the patch.
What to do: Water only at the base of the plant to keep the leaves dry. Ensure your garden has good airflow by thinning out dense foliage.

Leaf spots on other plants

Find out what's wrong with your pea

The list above covers the usual causes. Pocket Botanist looks at a photo of your actual plant and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.

When to worry

Powdery mildew is common at the end of the season as plants age. It is only a major concern if it appears early and prevents the plant from producing pods.

Stopping it coming back

Water at the base of the plant and provide plenty of space for air to circulate between vines.

Pea: spots? Check yours with a photo

Every plant is a little different. Take a photo of your pea and Pocket Botanist tells you which cause is most likely, how serious it is, and what to try first. A few checks a day are free. Save the plant and you get care reminders timed for it.

Get the app · Or check it from a photo now, free

Questions people ask

Is powdery mildew harmful to eat?: The fungus itself is not toxic, but it ruins the flavor and health of the plant. It is best to avoid eating heavily infected pods.
Does sun help with white spots?: Yes, full sun helps keep the leaves dry and discourages fungal growth. Ensure your peas get at least 6 to 8 hours of direct sunlight daily.

Guides to these causes

Powdery Mildew

Why are there white spots on my garden pea leaves?