INDEX 



Acridiidae, 67. 

 Aleyrodes, 273. 

 Ambush bugs, 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, oo. 



dock, 91. 



European grain, 89. 



melon, 91. 



orange, 91. 



spring-grain, 87. 

 Aphis lions, 171. 

 Apidae, 203. 

 Apina, 203. 

 Apple blossom, 195, 210. 



bitter rot, 246. 



maggot, 125. 



scab, 245. 



of Peru, 41. 

 Army worm, 107, 188. 

 Ascomycetes, 242. 

 Ascospore fungi, 242. 

 Asilidae, 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 blight, 263. 

 Bees, 203. 

 Beetle, asparagus, 136. 



Colorado potato, 135. 



cucumber, 137. 



May, 131, 147. 

 Beetles, 131. 



click, 134. 



flea, 139. 



ground, 164. 



ladybird, 165. 



Lamellicorn, 132. 



leaf, 135. 



long-horn, 140. 



predaceous, 164. 



snapping, 134. 



tiger, 164. 

 Beggar ticks, 19. 

 Bermuda grass, 61. 

 Billbugs, 143. 

 Bindweed, 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, 251. 

 Blattidae, 70. 

 Bluebird, 298. 



329 



