Johnson, Fred R. <br/><br/>
Papers on deciduous fruit insects and insecticides.  Spraying experiments against the grape leafhopper in the Lake Erie Valley in 1911 / 
 Spraying experiments against the grape leafhopper in the Lake Erie Valley in 1911 
by Fred Johnson. 
 - Washington :  Govt. Print. Off.,  1912. 
 - iii, 13 p., [3] leaves of plates :  ill. ;  23 cm. 
 - United States.  Bureau of Entomology.  Bulletin ;  no. 116, pt. 1. .
<br/><br/> From: U.S. Bureau of Entomology bulletin, no. 116, pt. 1. 
<br/><br/><label>LCCN: </label>agr12001176  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Grape leaf-hopper.<br/>Spraying.
<br/><br/><label>LC Class. No.: </label>SB823  / .A2 no. 116, pt. 1