INDEX 



Andropogon virginicum stems as win- 

 tering place of chinch-bugs, 98. 



Annelid parasite of May-beetles and 

 white-grubs, 57-58, 65. 



Ants as enemies of chinch-bugs, 96. 



anxia, Phyllophaga, 31, 32, 35, 38, 43, 

 63. 



Apple as food plant of May-beetles, 

 29, 30, 31, 32, 33, 34, 36, 38, 40, 

 42, 43, 44, 45, 58, 60, 63, 64. 

 -growers and the codling-moth, 1, 

 6, 10-13. 



arcuata, Phyllophaga, 38, 47. 



arkansana, Phyllophaga, 42. 



Army-worm, 122. 



Ash as food plant of May-beetles, 29, 

 31, 33, 38, 39, 40, 58, 59, 60, 63. 



balia, Phyllophaga, 43. 



barda, Phyllophaga, 43. 



biimpressa, Phyllophaga, 47. 



bipartita, Phyllophaga, 35, 36, 44, 63, 

 64. 



Birch as food plant of May-beetles, 

 29, 33, 38, 40, 43, 58, 59, 60. 



Black Leaf 40, 106, 107-108. 



Blackberry as food plant of May-bee- 

 tles, 29, 30, 31, 32, 33, 35, 38, 40, 

 42, 58, 60, 63. 



Box-elder, May-beetles found on, 29, 

 33, 36, 40, 58, 59, 60. 



calceata, Phyllophaga, 43. 



Catalpa, May-beetles collected from, 



58. ; 



Cherry as food plant of May-beetles, 



29, 34, 36, 42, 44, 58, 60, 63, 64. 

 Chinch-bug, artificial measures, and 

 experiments, for control of, 97, 

 120:— 

 barriers : 



asphalt oil, 100. 



coal-tar, 100, 101, 102, 110-112. 



coal-tar mixtures and petroleum 



products, 100-104. 

 Heppe's flux oil, 100. 

 petroleum road oils, 101-104, 112. 



Chinch-bug, artificial measures, and 

 experiments, for control of — Con- 

 tinued : 

 barriers — cont. : 



road oil No. 5, 101. 

 road oil No. 6, 101, 102, 112. 

 road oil No. 7, results with, 

 1911, 1912, and 1913, 102- 

 104, 113, 121. 

 road oils Nos. 8 and 9, 102- 

 103. 

 Superior oils Nos. 1 and 2, 100. 

 estimate of results of maintain- 

 ing in 1914, 116-117. 

 expense of maintaining, 105, 111, 

 112, 114, 115, 117, 121. 

 burning out in winter, 98-99, 120. 

 destruction of, at wheat-harvest, 



99-100, 121. 

 insecticide sprays: 



kerosene emulsion, 105-106, 108, 



121. 

 tobacco preparations, 106-107. 

 soap solutions (tests of 14 



brands), 108-110; 121. 

 in wheat fields — 



Black Leaf 40, 107-108, 109, 



121. 

 decoction of cigar-clippings, 



108, 109. 

 gasoline and soap emulsion, 



108. 

 iron sulphate solutions, 108. 

 kerosene emulsion, 10S. 

 scalecide, 108. 

 repellents : 



asafetida, 105. 

 chlorhydric acid, 105. 

 crude creosote, 104-105, 121. 

 formic acid, 105. 

 sulphur, 105. 

 fungus disease of, 96. 

 increase — how far dependent on 

 weather and character of agri- 

 cultural crops? 93. 

 legislative remedy for losses by, 



117-120, 122. 

 "natural enemies" of, 97. 

 1914-campaign against, 115-117, 



122. 

 outbreak of 1910 to 1915, 71-127: 

 basis of judgment of losses dur- 

 ing, 72. 



