Cane, J., H. Cox, and W. Moar. 1995. Susceptibility of Ips ealligraphus (Germar) and Dendroctonus frontalis Zimmermann (Coleoptera: Scolytidae) to coleopteran-active Bacillus thuringiensis, a Bacillus metabolite, and Avermectin B1 . The Canadian Entomologist 127:831-837.