Correct option is C
· Phytophthora infestans is the causal organism responsible for Late Blight disease in potatoes, affecting foliage and tubers.
· Kufri Chipsona is a variety known for resistance to late blight, reducing the need for excessive chemical control.
· Late Blight is a fungal disease, not a viral disease, making statement C incorrect.
· Planting disease-free seed tubers is one of the most effective management practices to prevent the spread of the pathogen.