TheNaturePlanet

Don't ignore the bumps on tomato stems – timely treatment is essential to ensure a good harvest! Today, we've sorted out the common causes and solutions, so even beginners can handle it easily.


### Bumps from Adventitious Roots (Physiological Response)
- **Symptoms**: Soft white/light green bumps appear on the stems, resembling "small aerial roots," mostly near the potting soil.
- **Causes**: Overwatering, compacted soil, or root burn from excessive fertilization. When roots lack oxygen, the plant "self-rescues" by growing aerial roots.
- **Treatment**: Reduce watering and let the soil dry out; loosen the soil to improve ventilation. Water with root - stimulating agents + soil conditioners to nourish roots. For root rot, spray Chunlei mycin for control.


### Bumps from Bacterial Diseases (Urgent Intervention)
- **Symptoms**: Dense hard bumps on the upper - middle parts of stems; internal vascular bundles turn brown, with leaves becoming brittle, curled, and the plant wilting.
- **Causes**: Wounds infected by bacterial髓 necrosis, canker, etc. High humidity accelerates spread.
- **Treatment**: Prune diseased branches and disinfect tools. Spray the entire plant with Chunlei mycin/quinolinone (once every 3 days, for 2 - 3 consecutive times). Control humidity and enhance ventilation to prevent spread.


### Bumps from Physiological Nutrient Deficiency (Nutritional Imbalance)
- **Symptoms**: Small scattered bumps all over the plant, accompanied by yellowing, curled leaves, slow growth, without rot or browning.
- **Causes**: Deficiency in potassium/sulfur, or poor root absorption due to compacted soil.
- **Treatment**: Increase application of compound fertilizers containing potassium and sulfur; spray potassium dihydrogen phosphate + trace element fertilizers on leaves. Loosen the soil to improve its透气性.


### Daily Maintenance Tips
1. Water only when the soil surface is dry (avoid overwatering with heavy flooding).
2. Disinfect pruning wounds promptly; enhance ventilation during high - humidity periods.
3. Isolate diseased plants. If bumps are accompanied by black - brown spots/root rot, prioritize disease - targeted treatment.


In short, by following these methods, your tomatoes will grow healthily and produce a good harvest.
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