XII 
White Grubs—Continued. 
food of imagos, 101-102. 
preference of separate 
species, 101. 
of larve, 96, 100-101. 
fluctuation of numbers, 96. 
injuries, 97-102. 
life history and habits, 102-107. 
locust eggs as food of, 101. 
natural enemies, 107-112. 
number of Lachnosterna species 
of, in Illinois, 97. 
preventive and remedial meas- 
ures against, 112- 
117. 
general, 113. 
local, 112. 
species injurious to Corn in Illi- 
nois, 100. 
Wilcox, E. V., 42, 108. 
ao leaves as food of May Beetles, 
Wireworm, Corn, 7, 18, 37-39, 47. 
under Corn Wireworm. 
Wheat, 7, 32-34, 47. See under 
Wheat Wireworm. 
See 
Wireworms, 3, 4, 6, 7, 18, 24-44, 45, 47, 
51, 129, 144. 
generic synopsis, 27. 
natural enemies, 41 
prevention and remedy, 42. 
Mops year as enemy of White Grubs, 
Weed: ae as enemy of White Grubs, 
Woodworth, C. W., 142. 
Woolly Grass Root Louse, 46, 92-94. 
description, .93. 
> 4 
Xanthium strumarium infested by Sor- 
ghum Mealy Bug, 94. 
Y. 
Yellow Sorghum Louse, 61, 63. 
Z 
zeas, Anthomyia, 14. 
