Weeds are plants that only 1 percent of the world's great economic damage will be caused (1). The result showed that pigweed extract on corn and interaction type extract with different time had significant difference on 1% and there were significant difference at 1% on bean seedling growth. Maximum germination percent was 55% by control level corn. Maximum germination percent in bean was control level. Root and shoot extract pigweed 12% decresed.The result showed that extracts of various organs; the level of weed control is a downward growth trend.
