Fig 1.1
Crop: Turmeric
Scientific name :
Common / Local Name :
Fig 1.2
Fig 1.3
Turmeric
Rhizome rot/ soft rot
Causal organism: Pythium aphanidermatum, P. myriotylum, P. graminicolum.
Symptoms
- Infection occurs on the fresh or on the pseudostem which spreads to rhizomes.
- In certain cases, rhizome rot appears to be severe and affected clumps remain stunted.
- The affected plants show varying degrees of yellowing and pseudostems come off with a gentle pull.
- The affected rhizome shows varying degrees of brown shades compared to orange brown shade in healthy ones.
Management
- Select healthy seed since the disease is seed borne.
- Grow resistant varieties.
- Remove the infected clumps and drench the area with Mancozeb to check the spread.
- Treat the seeds with Mancozeb (4g/kg) at the time of planting.
- Follow seed treatment with Trichoderma harzianum and soil application of Trichoderma mixed with neem cake @ 2t/ha or FYM 30-40t/ha.
Leaf blotch
Causal organism: Taphrina maculans
Symptoms
- Appearance of translucent spots on the lower leaves which later turn dirty yellow and deepens to colour of gold and sometimes to bay shade.
- The adjacent leaf spots merge forming reddish brown patches leading to leaf blotches.
Management
- Follow crop rotation with non host plants.
- Foliar spray with Mancozeb, Copper oxychloride, Carbendazim (0.2%).
- Grow resistant varieties.
                                    ?                         �
Leaf spot
Causal organism: Colletotrichum capsici
Symptoms
- The leaf spots appear as elliptic to oblong and enlarge to 4-5 cm covering the major portion of lamina. The mature spots appear grayish white in the centre with a margin surrounded by yellowish halo.
- In the centre of the lesion dark fruiting bodies called acervuli are often seen which produce spores.
Management
- Remove the infected leaves and debris.
- Apply higher dose of potash.
- Grow resistant varieties.
- Spray the crop with Mancozeb, Carbendazim (0.2%), Bordeaux mixture (1%) after the disease incidence.
Input availability |
Address/Contact details |
Seeds |
|
Fertilizers |
For detailed list kindly click here |
Pesticides |
For detailed list kindly click here |
Machineries | |
|