01020cam a22002651 4500 agr12001176 DLC 20260227110934.0 921209s1912 dcuaf 000 0 eng agr12001176 (OCoLC)27281646 DLC MdBJ DLC premarc SB823 .A2 no. 116, pt. 1 SB933 .U18 no. 116, pt. 1 Johnson, Fred R. Papers on deciduous fruit insects and insecticides. Spraying experiments against the grape leafhopper in the Lake Erie Valley in 1911 / by Fred Johnson. Spraying experiments against the grape leafhopper in the Lake Erie Valley in 1911 Washington : Govt. Print. Off., 1912. iii, 13 p., [3] leaves of plates : ill. ; 23 cm. From: U.S. Bureau of Entomology bulletin, no. 116, pt. 1. Grape leaf-hopper. Spraying. United States. Bureau of Entomology. Bulletin ; no. 116, pt. 1. 8113 8113