some of it is in red brown color and some is black. few of it is white in color.
the product i using to prevent ticks is front line spray, but i has stop using it for a while because there is no ticks around her that time and if i use on her, she will keep scratch her body after awhile. since there is a lot of ticks, i bought and re-apply the front line spray on my dog, but this morning i still saw some of it on my bed. just a few but it still moving. as i know front line able to kill the ticks but why 