10 BULLETIN 891, IT. S. DEPARTMENT OF AGRICULTURE. 



grass, but if freshly cut grass were placed in piles, say 1 foot deep 

 on the soil, the grubs would come up and enter into the piles within a 

 few hours. Wasps 6 had learned to search for the grubs in these piles 

 of grass. The specimens sent had been caught after they had entered 

 new grass piles. This suggests that after the insects have been seen 

 to enter the piles they could be killed there by hand methods. 



In 1901. Mr. Barclay sent. May 28. a photograph showing the 

 actual damage done to the golf links at Haverford. June 6. Mr. 

 Samuel P. Hinckley. Lawrence, Long Island. X. Y., stated that on 

 his tennis grounds little hills of sand, like ant hills, were thrown up 

 and that by running a hooked wire down into them the white grub 

 could be pulled out. 



At Louisville. Ivy., special work was conducted by Mr. J. J. Davis 

 on this species. Injuries were observed and reported by him to the 

 golf grounds of the Louisville Country Club. Here the grubs were 

 not directly injurious to the grass, but worked in the putting greens 

 during the night, throwing up little hills of earth. If these were not 

 swept off early in the morning they would be trampled on by the 

 players, thus packing a thin layer of earth over the surrounding grass, 

 killing the grass in these particular spots, and roughening the green, 

 which should be perfectly smooth. At no time were the grubs observed 

 actually feeding on the roots of the grass, and there was no evidence 

 of injury to the grass other than the indirect injury noted. The 

 entire golf course was plowed and seeded in 1909. and the first occur- 

 rence of the beetles was in 1911. Each year the ground was heavily 

 fertilized with animal fertilizers, principally sheep manure. 



March 6, 1915. Mr. Wm. Buck. Waterloo. 111., described these 

 larvse as crawling on their backs and working after sunset and during 

 the night. He stated that they worked underground and that they 

 ate the roots of plants The grubs worked their way to the surface 

 and collected under pieces of manure, and in their movement upward 

 uprooted and exposed the roots of young alfalfa plants. Their 

 burrowing also made the soil porous and spongy, a condition which 

 accelerates evaporation and has a damaging effect on the plants. 

 Injury was confined entirely to the young plants, those with even 

 a moderately developed root system not being injured. Xo evidence 

 was found that the grubs actually gnawed the roots. 



October 27. 1915. this species was observed in abundance by Mr. 

 A. L. Chapman. Washington. D. C. who stated that grubs of this 

 June beetle had been eating the small terminal roots of grass, chieflv 

 Capitol lawn and crabgrass, practically ruining the entire lawn. Pre- 

 vious attacks had been noticed, but none as severe as this. On three 

 occasions a pint or more of the grubs was taken from the cement floor 



6 " Control by natural agrencies." p. 31. 



