Wilt disease:
Causal organism= Cephalosporium sacchari
Symptoms=
· The first symptom of the wilt disease is visible in the canes of 4-5 months.
· The effected plants are stunted with yellowing and withering of crown leaves.
· The midrib of all leaves in a crown generally turns yellow, while leaf laming remains green.
· The leaves dry up and stem develop had owner in core.
Favourable condition=
· High day Temperature: 30-35 degree.
· Low humidity: 50-60%
· Low soil moisture and alkaline soils.
Disease cycle of wilt disease in sugarcane=
Perennation=
· Through soil, plant debris, weed host.
· Through fungus is soil-borne and remain in soil as saprophyte for 2-3 years.
Primary infection=
· Through infected seed pieces, plant debris, and soil also.
Secondary infection=
· Through wind, rain and irrigation water.
Management=
Culture Method
· Adopt crop rotation.
· Grow resistant varieties: Co
356, 370, 393, 859, 1158, 617, and BP-17.
· Maintain proper moisture in the field.
· Avoid water logging condition.
· Use proper deranged application in the field.
· Proper sanitation application applies in the
field. E.g.: soil solarization.
· Proper spacing maintain row to row and plant
to plant.
· Remove infarcted part of the plant.
· Apply good weed management practices.
· Apply good irrigation application in the
filed area.
Chemical Method
·
Fungicides can be used to manage wilt disease in sugarcane
Example: Carbendazim.
Tebuconazole.
Biological control
· The application of
biocontrol agents can help control wilt disease in sugarcane.
Example: Trichoderma species.
Pseudomonas species.
