Question: asking about  control of ganoderma disease
Answer:  when disease symptoms are observed, isolate the diseased plant by digging a trench 60 cm deep, 30 cm wide and 1 m away from the trunk and drench the trench with 2g /lit  of  water  captan.
 application of 5 kg neem cake per palm in addition to organic matter. 
apply 1.5 to 2 kg sulphur powder around the palm. 
 palms showing initial disease symptoms should be treated with ৩ গ/lit captan or 2g /lit  carboxin three times at monthly interval with 10 litres of solution per palm.
 soil drenching with 1 g copper sulphate + 1.5 g auriofungin solution in 100 ml of water.