34 INJURIOUS INSECTS OF KANSAS. 



Direct reports have been received by the writer during the past two 

 weeks from correspondents of the State Board of Agriculture in 35 dif- 

 ferent counties. Of these, 21 report the Hessian Fly as present to an ex- 

 tent varying from slight indications to very serious occupation. The 

 western line of the invading army now rests between the 97th and 98th 

 meridians, and the line is unbroken, from Sumner in the southern tier 

 of counties, to Washington in the northern tier. This line passes 

 through Sumner, Sedgwick, Harvey, Marion, Dickinson, and Clay, to 

 Washington. No counties to the west of this line report the presence 

 of the foe. No reports have been received from the southeastern coun- 

 ties excepting Cherokee, which reports a light attack of the fly. The 

 other counties reporting its presence are Cowley, Morris, Davis, Riley, 

 Pottawatomie, Wabaunsee, Shawnee, Douglas, Johnson, Wyandotte, 

 Leavenworth, Atchison, Jackson, and Doniphan. Thus there is not 

 only an unbroken line of the enemy from Sumner north to Washington, 

 but also from Sumner northeast to Doniphan, in the northeastern cor- 

 ner of the State. The counties reporting the most serious injury are 

 Doniphan, Atchison, Leavenworth, Wabaunsee, Davis, Riley, Morris, 

 Dickinson, and Marion. 



In 1885 the fly made a material spread within the State. In 

 the monthly report of the Board of Agriculture for June, 1885, 

 Professor Snow says : 



An article detailing the life-history of this insect and suggesting 

 remedies for its ravages was furnished by the writer in January last 

 for the Fourth Biennial Report of the Kansas State Board of Agricult- 

 ure. At that time the fly was reported to the writer from only 18 

 counties. At the present time it is reported from no fewer than 57 of 

 the 81 organized counties of the State of Kansas. This increase in area 

 of distribution is to be accounted for from the fact that the species is 

 two-brooded, and that the second or spring brood made its presence felt 

 in many counties in which the first brood was not sufficiently numerous 

 to attract attention. 



An analysis of the 57 counties reporting the Hessian Fly indicates 

 that the wheat has been very seriously destroyed in 16 counties, moder- 

 ately damaged in 11 counties, and but slightly injured in 30 counties. 

 The 16 counties suffering serious damage are Atchison, Butler, Chase, 

 Davis, Dickinson, Jackson, Labette, Leavenworth, Lincoln, Marion, Os- 

 borne, Ottawa, Rooks, Saline, Sedgwick, and Wabaunsee. The 11 coun- 

 ties sustaining a moderate loss are Cowley, Douglas, Doniphan, Harvey, 

 Jefferson, Johnson, Linn, McPherson, Miami, Mitchell, and Osage. The 

 30 counties as yet but lightly afflicted are Allen, Brown, Chautauqua, 

 Clay, Cloud, Coffey, Crawford, Elk, Ellis, Ellsworth, Franklin, Harper, 

 Lyon, Marshall, Montgomery, Morris, Nemaha, Neosho, Norton, Reno, 

 Riley, Rush, Russell, Shawnee, Smith, Sumner, Washington, Wilson, 

 Woodson, and Wyandotte. 



