These pea leaves have started to turn yellow when the plant was allowed to dry out.<\/figcaption><\/figure>\n\n\n\nRegularly water peas if the weather is warm. Consistent water will help to prevent yellowing leaves on peas over spring and summer.<\/p>\n\n\n\n
6. Lack of sunlight<\/h3>\n\n\n\n Peas that do not get enough sunlight can start to develop light green or yellow leaves. Peas will grow best and fastest when they get at least 6 hours of sunlight. This will help the green chlorophyll to develop in their leaves and encourage flowers and peas to form.<\/p>\n\n\n\n
If you are growing peas in pots, move them into a position that gets direct sunlight in the morning. This will help the plant to grow faster and photsynthesize efficiently.<\/p>\n\n\n\n
7. Fungal disease<\/h3>\n\n\n\n There are several diseases that can cause yellowing of pea plants. Fusarium wilt is a common fungal disease that can cause yellowing, dark spots, stunting, and wilting of the entire plant. This disease lives in the soil and can enter through the roots of the plant.<\/p>\n\n\n\n
Root rot and powdery mildew are also common diseases that can cause yellowing of the leaves. Crop rotation is a great way to stop peas from being re-infected year to year. Choose a new space in your garden each year for your pea crop to keep them healthy.<\/p>\n\n\n\n
Fungal infections like powdery mildew, downy mildew, or leaf spot diseases can lead to brown spots and yellowing of pea leaves. These pathogens thrive in moist conditions and can be managed with proper spacing, ventilation, and fungicides if necessary.<\/p>\n\n\n\n
To prevent diseases, make sure to plant your pea plants in well-draining soil and avoid overwatering. Water your plants at the root zone rather than on the leaves to reduce the chances of fungal growth. You can also use fungicides to help prevent the spread of fungal diseases. You can also remove infected plants as soon as possible to stop fungal disease from spreading.<\/p>\n\n\n\n
8. Pea Mosaic Virus<\/h3>\n\n\n\n Pea mosaic virus can cause the leaves of infected pea plants to turn yellow. Yellowing is a common symptom of mosaic virus infections in peas, along with the characteristic mosaic pattern of light and dark green areas. The yellowing occurs because mosaic viruses disrupt the plant’s ability to photosynthesize efficiently. As a result, affected leaves cannot produce chlorophyll properly, which is necessary for the green color associated with healthy leaves.<\/p>\n\n\n\n
Prevention is best for mosaic virus as there is no cure. Mosaic viruses are often spread by aphids so controlling them is key. Use insecticidal soaps, Neem oil, or beneficial insects like ladybugs and lacewings. Get rid of any plants that you think my be infected including any plant debris. Put them in your garbage bin rather than your compost to avoi <\/p>\n\n\n\n
Solutions for yellow pea leaves<\/h2>\n\n\n\n In this section, we’ll discuss some of the most effective ways to combat yellowing pea leaves.<\/p>\n\n\n\n
Proper watering<\/h3>\n\n\n\n Overwatering is one of the main causes of yellowing pea leaves. To prevent this, make sure you’re not watering your plants too frequently. Only water them when the top 1-2 inches of soil are dry. Make sure your peas are growing in well draining soil as waterlogged soil can also cause yellowing. Use good quality potting soil and improve your garden bed with organic matter before planting pea seeds.<\/p>\n\n\n\n
Nutrient management<\/h3>\n\n\n\n If your pea plants are lacking key nutrients especially nitrogen they can quickly turn yellow. I like to add a handful of pelleted chicken manure a month after planting to feed them as they grow. You can also add an organic liquid fertilizer to give them a nitrogen boost if their leaves start to yellow as they grow. <\/p>\n\n\n\n
Disease control<\/h3>\n\n\n\n Yellowing pea leaves can also be a sign of disease. To prevent this, make sure you’re planting disease-resistant varieties of peas, examples include Green Arrow, Little Marvel, Sugar Ann, Strike, Early Perfection and disease resistant sugar snap peas. Remove any plants that have been infected and an organic fungicide to help control it.<\/p>\n\n\n\n
Pest management<\/h3>\n\n\n\n Pests such as aphids and spider mites can also cause yellowing pea leaves. To prevent this, make sure you’re inspecting your plants regularly for signs of pests. If you do notice pests, try Neem oil or horticultural soaps to control them. I also find that a sharp squirt of water from the hose can quickly remove pests from pea leaves.<\/p>\n\n\n\n
3. Move potted pea plants into the sun<\/h3>\n\n\n\n If your pea plants are in shade, move the pots into a sunny position. They will develop greener leaves and more flowers to give you plenty of peas over the winter season.<\/p>\n\n\n\n