Question: asking about control of ganoderma wilt
Answer: ganoderma disease:
 1. drainage should be improved. 
2. recommended dose of fertilizer should be applied. 
3. 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 0.2% captan.
 4. application of 5 kg neem cake per palm in addition to organic matter.
 5. apply 1.5 to 2 kg sulphur powder around the palm.
 6. palms showing initial disease symptoms should be treated with bordeux  mixture  @ ১০গ/lit  of  water   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