Beware of starch mildew (Oidium sp.) in peas.

Beware of starch mildew (Oidium sp.) in peas.

The weather during this period is cold with fog in the morning, hot weather in the day, warning pea growers in all stages of growth, dealing with powdery mildew (Oidium sp. fungus).

Disease symptoms are found on all parts of the plant. Early symptoms are usually found on the leaves first, especially the leaves on the bottom of the plant. White powder-like fungi are found scattered in patches above the leaves and under the leaves. If severe symptoms, fungi spread throughout the plant. See the whole white pea plant, causing the leaves and parts to twist, deform. The leaves will soak, burn and fall prematurely. If the flowering stage of the disease, it will cause the cairn tree to stick to a few pods, distorted pods, or smaller pods and seeds to atrophy.

Preventive / corrective guidelines

1. Do not plant too tightly and weed to provide good air transfer.

2. Regularly check the transplantation when you find symptoms of spraying disease with 80% WP sulfur, 30 - 40 grams per 20 liters of water, or 5% SC hexaconazole, 20 - 30 milliliters per 20 liters of water, spraying every 5 - 7 days.

* * * * Sulfur should not be sprayed in hot or sunny weather because it may burn the leaves.# 9 billion agriculture # 4 trees # Department of Agriculture # Peas # Prevent plant diseases