When I worked by LPT Method on mentioned ticks, mortality in control groups was above 20% (in the closed Insectarium (3*3*2 meter) with temperature between 27-28 centigrades and RH between 70-80%), whereas in other ticks such as Boophilus annulatus and Rhipicephalus bursa in this condition by LPT method mortality in control groups was between 0-10%. Why?