INJURIOUS INSECTS OF 1903. 15 



McLeod, Redwood, Le Sueur, Douglas, Rice, Cass, Wright, 

 Dakota, Ramsey, Hennepin, Washington, Pope, Freeborn, 

 Anoka, Wabasha, Sherburne, Houston, Jackson and Chisago. 

 In the accompanying map the shaded portion represents the 

 area of the state infested in 1902 and 1903. This area is 

 bounded on the north and west approximately by a line run- 

 ning northwest from the vicinity of Rush City to Little Falls 

 in Morrison county ; thence southwest to Osakis in Douglas ; 

 thence south through Redwood Falls to State Line. As in 

 the case of the Hessian Fly not all the counties included 

 within that area were infested, but all counties infested 

 lie within shaded area. Dodge county, which had much 

 rain this season, had few or no Chinch Bugs, according to 

 report, and no reports of injury came this year from Lyon 

 (which has not been included in shaded area), Isanti, Kana- 

 bec, Nicollet, Watonwan or Waseca. 



As intimated above, Stearns takes the prize as being the 

 worst sufferer last summer ; Meeker is a close second, then 

 comes Morrison, Kandiyohi and Wright in relative amounts 

 of injury, followed by Pope, Benton and Sherburne. The 

 writer found one or two Chinch Bugs near Alexandria, Doug- 

 las county, this season, while studying the Hessian Fly, and a 

 report reached us of its occurrence in Osakis, same county. 

 Farmers in this county report its presence in small numbers in 

 different districts, but not as yet numerous enough to cause 

 injury. 



Consulting reports of this department for the last nine or 

 ten years, it will be seen that the above map gives a very good 

 idea of that portion of the state usually visited by the Chinch 

 Bug. In 1887 it was reported as occurring somewhat farther 

 north in the central and eastern portions, and I have heard 

 this year from Lindsay P. O., Polk county, to the effect that 

 they occur there every year to some extent. I have not been 

 able to secure specimens from there, however, and doubt the 

 correctness of the report; my correspondent must be mis- 

 taken. 



On the Experiment Station farm on April 17th I found 

 Chinch Bugs crawling actively about under a little rubbish 

 which had afforded them a winter retreat. They were ob- 



