THE GREEN JUNE BEETLE. 11 



of the areaway leading into the basement. The grubs were most nu- 

 merous and active on warm, humid nights, especially after rains. 

 The lawn was about 50 by 50 feet, raised about 4 feet from the level 

 of the street, and was kept constantly supplied with water by two 

 hydrants. The grass presented a yellowish brown hue instead of 

 a grass green, showing lack of proper nourishment. 



Other instances of injury to lawns and golf links have been re- 

 ported, but will receive no mention here. 



In rearing cages the grubs cut off young stalks of wheat, rye, 

 cotton, sorghum, and paspalum grass (P asp alum dilatatum) but did 

 not attack other grasses or corn which were grown in these cages. 



INJURY BY THE GRUBS TO VEGETABLE AND GARDEN PLANTS. 



Practically all cases of injury mentioned below were accompanied 

 by living specimens of the larvae of the green June beetle. 



February 4, 1901, Mr. S. J. Trepess wrote that the larvae occurred 

 in large numbers at Glen Cove, Long Island, especially where there 

 was mulching. There were large patches in lawns where the larvae 

 had entirely killed the grass. He reported that four large beds of 

 geraniums were destroyed, that they ate the epidermis off the plants 

 at the surface of the ground, destroyed strawberry plants set out from 

 pots in September, and attacked roots and crowns, so that every day 

 plants were seen to wilt. Injured plants were replanted about the 

 beginning of October on land where no trace of the insects was 

 visible. Each plant was usually attacked by from two to six larvae. 

 The soil contained much humus, which our correspondent recognized 

 as the cause of the larvae being so numerous and thriving. Mr. 

 Trepess had been bothered with these insects in his lettuce and 

 violet frames for two years, and had caught many of them in tomato 

 cans sunk in the ground, the top of the can being about half an 

 inch lower than the surface. February 5, Hon. J. H. Bromwell, 

 Cincinnati, Ohio, sent nearly mature larvae of this species, with state- 

 ment that it was acting like a cutworm in working around the stalks 

 of celery and other plants and actually cutting them off close to the 

 ground. 



June 11, 1904, Mr. Moritz E. Euther, Holyoke, Mass., sent speci- 

 mens about one-third grown, stating that they were feeding on beans, 

 beets, lettuce, potatoes, tomatoes, carrots, dahlias, roses, and other 

 plants, nipping the young plants just underneath the crown, and after- 

 wards pulling the leaves into the earth. 7 The trouble was described as 

 having begun about three years previously and attack was first 

 confined to lettuce and beets ; later they were described as attacking 



7 Unfortunately, a common cutworm was involved in this attack, and it is not known 

 positively that the grubs were responsible for the entire injury. 



