Bacterial Blight vs. Physiological Disorders – Know the Difference & Save Your Crop!
- durgaprasad thota
- Jul 7
- 2 min read
Bacterial Blight vs. Physiological Disorders – Know the Difference & Save Your Crop!
🧪 Why Is This Important?
Many farmers mistake physiological disorders (like cracking, spotting, internal breakdown) for bacterial/fungal diseases, and waste money spraying chemicals unnecessarily. Knowing the difference helps you apply the right remedy at the right time — especially if you're practicing organic or low-chemical farming.

🔍 Spot the Differences Clearly
Feature | Physiological Disorders | Bacterial Blight |
Cause | Non-infectious (nutrients, heat, water stress) | Caused by Xanthomonas axonopodis bacteria |
Spread Pattern | Appears randomly, often on sun-exposed or low-nutrition areas | Spreads systemically, fast & contagious |
Symptoms | Cracks, sunburns, fruit drop, breakdown | Water-soaked lesions on fruit, black spots, ooze |
Inside of Fruit | Usually no foul smell or rot (except internal breakdown) | Often leads to pulp rot, foul odour |
Response to Neem/Trichoderma | No significant change | Effective against initial stages if applied early |
✅ Organic Farmer Checklist
Observation | Suspect | Remedy |
Only few fruits have damage, no pattern | Physiological | Focus on irrigation, nutrition, pruning |
Damage is spreading to nearby fruits/leaves | Bacterial | Use Bordeaux mix 1%, Neem oil 3%, or Trichoderma spray |
Fruit is red outside but brown inside | Internal Breakdown | Boron & calcium spray |
Circular dry patches on rind | Sunburn | Kaolin spray, canopy cover |
Soft, sunken brown patches with ooze | Bacterial Blight | Remove infected fruits, copper-based sprays |
🪰 AEDAA Smart Traps: A Must in Both Cases
Whether it’s physiological or pathogenic, your orchard is always at risk of insect vectors like:
Thrips (cause injuries, spread disease)
Fruit borers (entry points for pathogens)
Aphids/mealybugs (sap suckers weaken tree health)
✅ AEDAA's Solar and Pheromone Traps:
Protect both healthy & stressed trees
Reduce pesticide load, improve fruit quality
Save 25–30% of fruit from pest-linked secondary disorders
📦 Starting ₹3000 – Bulk discounts available!📲 Call: +91 7288077029 | ✉️ aedaaequipments@gmail.com
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