What causes yellow leaves on container eggplants?
Written by
Kiana Okafor
Reviewed by
Prof. Charles Hartman, Ph.D.Yellow leaves on container eggplants are a symptom of deeper issues that require immediate attention. After ten seasons of balcony gardening, I've encountered this very common problem numerous times. Once you identify the issues present, you can implement the correct Troubleshooting action to prevent further damage to your plants. In this post, you'll learn how to recognize water issues, nutrient deficiencies, or insect infestations.
Excessive watering will result in wet soil conditions that can drown roots. Inadequate oxygen intake will cause the lower leaves to yellow. Always check the soil moisture before watering to ensure optimal watering. I either use my finger to go at least two inches deep into the soil. Water only after you've reached that depth, and it is totally dry. If I care enough about the plant in the soil, I usually place perlite in the potting mix to increase drainage.
Watering Correction
- Check soil moisture before watering
- Ensure pots have drainage holes
- Add perlite to improve soil structure
Nutrient Management
- Apply balanced 10-10-10 fertilizer
- Use foliar spray for quick correction
- Add compost for micronutrients
Pest Elimination
- Spray leaves with strong water stream
- Apply neem oil weekly
- Introduce beneficial insects
Deficiencies of nutrients exhibit uniformity. For example, a nitrogen deficiency causes the plant to turn uniformly yellow, while magnesium deficiency results in yellowing of the veins. I also use a balanced liquid fertilizer every three weeks during the growing period. For magnesium deficiencies, an Epsom salt foliar spray will bring instant relief in a matter of days.
Yellow stippling on leaves is caused by spider mites. Spider mites prefer dry conditions. I spray many plants with water daily during hot weather. I apply neem oil weekly to suffocate the eggs. Ladybugs can help with biological control. I make a point of releasing ladybugs every spring to avoid outbreaks.
Prevent regrowth by consistently monitoring your plants over time. You can check the underside of each leaf weekly to catch pests as early as possible. When you implement watering and feeding schedules, stick to them. My plants are always a bright green because I have committed to watering and feeding them regularly. Start inspecting your eggplants today to encourage better growth.
Read the full article: How to Grow Eggplant in Containers
