Fumigation target refers to the objects or areas that are treated with fumigants, which are toxic gases used to kill pests. The two crossword solutions for this term are ROACH and PEST. Roaches are insects that are commonly found in homes and other buildings, and they can be difficult to get rid of. Pests are any organisms that cause damage to crops, livestock, or humans. Fumigation is a common method used to control these pests.