Canker
Causal organism: Ceuthospora phyllosticta
Symptom Mode of spread and survival Pathogen can survive on the cankerous growth of leaves, stem or fruits. In the warm rainy season bacteria ooze out from cankers and spread through water splash and air. It enters the through stomata and wounds on the plants. Life cycle The bacterial spores present in the cankers ooze out when conditions are congenial for them and become water splash borne or air borne. When they come in contact with the host plant surface, they enter through stomata or injuries, multiply inside the plant, cause infection, and develop symptoms like cankerous growth on the surface and thus repeat the life cycle. |
Last modified: Monday, 26 December 2011, 7:37 AM