Bacterial Soft rot potato: Erwinia carotovora subsp caratovora Symptom: Infection at two phases is blackleg and soft rot. The black lesion appears on the base of the plant. Systemic and browning […]
Diseases (रोग)
Posted on:
Brown rot or Bangle blight Potato
Brown rot or Bangle blight: Ralstonia solanacearum Symptom: At the time tuber formation wilt is the main characteristic symptom. In leaf symptom -wilt, stunt and yellowing. Browning of xylem […]
Diseases (रोग)
Posted on:
Common scab or corkey scab
Common scab or corkey scab: Streptomyces scabies Symptom: Corkiness of the tuber periderm is the characteristics symptoms. 1/4 inch into the tuber surface are russette appearance. Slightly pitted on […]
Diseases (रोग)
Posted on:
Black scurf Potato
Black scurf: Rhizoctonia solani Symptom: Black speck, black speck scab, russet scab on tubers. At the time of sprouting dark brown colour appears on the eyes. Affected Xylem tissue […]
Diseases (रोग)
Posted on:
Post-harvest tuber rots Potato
Post-harvest tuber rots: Sclerotium rolfsii Symptom: Wilting is the initial symptom. Yellowish brown coloured Sclerotia appeared on the infected tuber. Rotting of the tuber. Milky white and floccose appearance […]
Diseases (रोग)
Posted on:
Early blight of Potato
Early blight of potato: Alternaria solani Symptom: It is present in both hills & plains. Brown-black necrotic spot-angular, an oval shape characterized by concentric rings. Several spot coalesce & […]
Diseases (रोग)
Posted on:
Late blight of Potato
Late blight of potato: Phytopthora infestans Symptom: It affects leaves, stems and tubers. Water soaked spots appear on leaves, increase in size, turn purple brown& finally black colour White […]
Diseases (रोग)
Posted on:
Onion Purple blotch
Onion Purple blotch: Alternaria porri Symptom: This disease occurs mainly at the top of the leaves, the infection starts with whitish minute dots on the leaves with irregular chlorotic […]
Diseases (रोग)
Posted on:
Onion White Rot
Onion White Rot: Sclerotium cepivorum Symptom: The leaves become yellow and die-back and when the plants are pulled up, roots are found to be rotten and the base of the […]
Diseases (रोग)
Posted on:
Onion Smut
Onion Smut: Urocystis cepulae Symptom: Black smut sori are seen at the base of the leaves and leaf surface. Black powdery mass is seen after rupturing of sorus wall. […]
Diseases (रोग)
Posted on:
Onion root rot
Onion Pythium root rot: Pythium aphanidermatum, P. debaryanum and P. ultimum Symptom: This disease causes seed rotting, pre-emergence damping off. The disease appears in circular patches in the field here and there. […]
Diseases (रोग)
Posted on:
Onion Leaf Blight (Blast)
Onion Leaf Blight (Blast): Botrytis spp. Symptom: Botrytis is the major disease of onions in cool climate areas. Light infections do not affect yields but heavy infections causing major yield reductions […]
