22 



CEEEAL AND FORAGE INSECTS. 



vicinity of Trenton, Mich., a having received material with the com- 

 plaint that "the corn is badly eaten * * * ." These are the 

 only instances on record of the depredations of this beetle previous to 

 the outbreak in Ohio in 1906. 



OUTBREAKS NEAR NEW PARIS, OHIO, IN 1906, 1907, AND 1908. 



Some time during the first week of June, 1906, Mr. Wm. G. Baker, 

 of New Paris, Ohio, reported that serious injury had been done b} T a 

 little brown beetle in his cornfield, which was planted on black, 



Fig. 13.— A cornfield near New Paris, Ohio, about the first week in July, 1906, showing results of depre- 

 dations by the slender seed-corn ground-beetle. (From Webster. ) 



swampy land. Specimens sent to the writer at Richmond, Ind., 

 proved to belong to this species. On the 15th of June a personal 

 examination of the field was made, and the beetles found still work- 

 ing in the replants, as man}^ as iive being taken from one kernel. 

 Twenty beetles were counted within a few inches of a single hill. 

 The corn was planted in checks, with three to four kernels to a hill, 

 and in many cases every kernel was destroyed. This field contained 

 about 40 acres, only about 10 to 15 of which were injured, this being 

 the lower part of the field, where the soil was black and peaty. In 

 some places over a third of the corn, replants and all, was missing. 

 Figure 13 shows the condition of the field a few weeks later. 



a Bul. 233, Mich. St. Agr. Coll. Exp. Sta., p. 50, figs. 51, 52. 



