Question: asking about control of charcoal stump rot in tea

Answer: cultural control: uproot diseased plant together with a ring of apparently healthy bushes surrounding the diseased one when detected. isolate large
area diseased patches by 90-100 cm deep and 30 cm wide trench surrounding the area connected to the nearest drain until uprooting can be
undertaken.
b. biological control:
during planting: use premixed compost or well rotten cattle manure with trichoderma biocide @ 200g/pit mixing thoroughly with the excavated soil.
for premix preparation spray 30l or 30kg trichoderma biocide @10% aqueous suspension in 3000 kgs of organic manures and keep in heap for 72
hrs. for multiplication.
standing tea: for top dressing, spray 5% spore suspension of trichoderma around the collar region @ 100 ml/plant during april/may or sep/ oct ????? the soil gets dry. soil must be forked before spraying.