Rising Risk in Summer – Cucumber Farmers, Be Alert
Cucumber crops face a serious fungal threat in the summer months, especially in May, due to Gummy Stem Blight (GSB). This disease, caused by Didymella bryoniae, affects cucurbit crops and can lead to significant yield and quality losses if not controlled in time.
Understanding the conditions, symptoms, and effective prevention methods is crucial to protect your crop and income.
1. High Temperatures Accelerate the Disease
The disease thrives in temperatures between 30°C and 40°C, though infections can begin even from 15°C. As heat intensifies, the spread becomes more aggressive.
2. Excess Moisture Promotes Infection
Heavy rainfall, frequent irrigation, or water staying on leaves for long durations creates ideal conditions for the fungus. This stunts plant growth and reduces yields.
Leaf Symptoms
Stem Symptoms
Fruit Symptoms
To control and prevent the spread, apply the following fungicides as per recommended doses:
| Fungicide | Dosage & Application |
|---|---|
| Thiophanate Methyl | 250–600 g per acre – Use as a foliar spray |
| Copper Oxychloride | 2 g per liter of water – Spray on infected plants |
| Mancozeb | 500 g per acre – Prepare a solution and spray thoroughly |
Repeat sprays at 7–10 day intervals if the weather remains humid or warm.
To earn a good profit from cucumber farming, early detection and timely management of Gummy Stem Blight are essential. With the right fungicides and field hygiene practices, farmers can safeguard their crop and ensure high-quality produce.
Healthy fields lead to higher farmer income. Stay alert, act early, and protect your crop.
