Katte disease of cardamom is caused by:

Correct option is C

✔️ (c) Virus: Katte disease is a viral disease of cardamom caused by the Katte virus, also known as Cardamom Mosaic Virus (CdMV).
· It is transmitted by banana aphid ( Pentalonia nigronervosa)
· Symptoms include:
· Mosaic pattern on leaves
· Stunted growth
· Poor flowering and yield reduction
· Management includes use of virus-free planting material and vector control
❌ (a) Protozoa: Protozoan diseases are typically found in animals or insects, not plants like cardamom.
❌ (b) Bacteria: Bacterial wilt does affect many crops but not Katte in cardamom.
❌ (d) Fungus: Fungal diseases affect cardamom (like capsule rot), but Katte is viral.