INDEX 



Acridiidse, 67. 

 Aleyrodes, 273. 

 Ambush btigs, 167. 

 Andrenidae, 203. 

 Anthracnose, bean, 255. 



cotton, 256. 



raspberry, 256. 

 Ants, 169, 173. 



and aphides, 92. 

 Aphides, 87, 95, 187. 

 Aphidius, 179. 

 Aphis, apple, 91. 



corn-root, 92. 



cotton, 90. 



dock, 91. 



European grain, 89. 



melon, 91. 



orange, 91. 



spring-grain, 87. 

 Aphis lioins, 171. 

 Apidae, 203. 

 Apina, 203. 

 Apple blossom, rgs, 210. 



bitter rot, 246. 



maggot, 125. 



scab, 245. 



of Peru, 41. 

 Army worm, 107, 188. 

 Ascomycetes, 242. 

 Ascospore fungi, 242. 

 Asilidse, 166. 

 Aspen, 25. 

 Assassin bugs, 168. 

 Asters, wild, 20, 23. 



Bacillus amylivorus, 259. 

 Bacteria, nitrifying, 275. 



nitrogen-gathering, 276. 



symbiotic, 278. 



Bacterial diseases, 259, 273. 

 Bacteriosis, bean, 263. 



melon, 263. 

 Bark lice, 82, 95. 

 Barley, mouse, 15. 



wild, 15. 

 Barnyard grass, 33. 

 Bean bUght, 263. 

 Bees, 203. 

 Beetle, asparagus, 136. 



Colorado potato, 133. 



cucumber, 137. 



May, 131, 147. 

 Beetles, 131. 



click, 134. 



flea, 139. 



ground, 164. 



ladybird, 165. 



Lamellicom, 132. 



leaf, 135. 



long-horn, 140. 



predaceous, 164. 



snapping, 134. 



tiger, 164. 

 Beggar ticks, rg. 

 Bermuda grass, 61. 

 Billbugs, 143. 

 Biadweed, black, 42. 



hedge, 41. 

 Birch, gray, 25. 

 Bird's-eye rot, 256. 

 Bitter rot, 246. 

 Blackbird, Brewer, 300. 



crow, 300. 



redwinged, 300. 

 Black knot, 242, 257. 

 Black rot, 231. 

 BlattidEe, 70. 

 Bluebird, 298. 



329 



