everttime ive seen a rollie pollie ive had sumtin on da plant nibbled on ...the stem and leaf with a microscope....but go ahead put alot in there see what happens then u should know if its aiight...ive caught sum rollie pollies on plants stem and leaf once ...i always thought they was harmless till i narrowed it down to 2many rollie polles around the plant ,,,,i juss dont trust them bastards