With the coming of rubber and pepper planting, the Ibans have adapted the Gawai Ngemali Umai (Paddy Farm Healing Festival) and Gawai Batu (Whetstone Festival) to hold Gawai Getah (Rubber Festival) to sharpen the tapping knives and Gawai Lada (Pepper Festival) to avoid diseases and pests associated with pepper planting respectively.Saribas Ibans' rite of paddy storage by Prof Clifford Santher
