Troubleshooting
Snow Pea problems — and how to fix them
Snow Pea (Pisum sativum var. macrocarpon) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Powdery mildew
White powdery coating on leaves in warm, humid or dry conditions. Improve airflow, avoid overhead watering, and remove affected tissue. Sow mildew-resistant varieties for late crops.
Pea moth / weevil
Pea moth larvae tunnel into pods; pea weevils notch leaf margins. Use fine mesh row covers from flowering to deter egg-laying. Rotate crops annually to break pest cycles.
Poor pod set / bolting
Temperatures above 21°C trigger bolting and poor pod fill. Sow at the correct season (early spring or autumn), mulch to keep roots cool, and harvest daily to extend cropping.
Prevent snow pea problems before they start
Most snow pea issues are care-mismatch, not bad luck. Dial in the basics:
Looking for snow pea in general rather than its problems? Read the full snow pea care guide — light, water, soil and feeding.
Snow Pea problems — FAQ
Why is my snow pea powdery mildew?
White powdery coating on leaves in warm, humid or dry conditions. Improve airflow, avoid overhead watering, and remove affected tissue. Sow mildew-resistant varieties for late crops.
Why is my snow pea pea moth / weevil?
Pea moth larvae tunnel into pods; pea weevils notch leaf margins. Use fine mesh row covers from flowering to deter egg-laying. Rotate crops annually to break pest cycles.
Why is my snow pea poor pod set / bolting?
Temperatures above 21°C trigger bolting and poor pod fill. Sow at the correct season (early spring or autumn), mulch to keep roots cool, and harvest daily to extend cropping.