Arizona Agricultural Experiment Station 



621 



Bigelozi'ia coronopifolia and B. Hartwcgi 



(rayless golden-rod, or burro 



weed). 1919: 428; 1920: 457-459. 



B. heterophylla ("jimmy weed"). 1920: 



458. 

 B. IVriglitii. 1920: 458. 



Black arm disease of cotton, or angular 

 leaf spot. 90: 273; 1919: 418-419; 

 1921: 609-610. 

 treatment of seed for. 90: 273; 1921: 

 609-610, 611. 

 Blackberries: 

 at Prescott Dry-Farm. 1921: 594. 

 at Sulphur Spring Valley Dry-Farm. 



1920: 474. 

 at University Farm. 1921: 595. 

 injured by red spider. 87: 201. 

 Black leaf 40 (nicotine sulphate) : 

 in spray for cotton aphis. 87: 200. 

 in spray for cotton thrips. 87: 201. 

 Blackleg of potato. 1921: 612. 

 Black scurf: 



organism causing (Rhizoctonia so- 



lani). T. H. 136; 1921: 612. 

 treatment of seed potatoes for. T. H. 

 136. 

 Blaisdell, H. W. 89: 225, 226. 

 Blaisdell Orchard, the. 89: 226. 

 hgs in. 89: 260. 

 seedling date trees in. 89: 257. 

 soil. 89: 262-263. 

 weather records at. 89: 228- 230. 

 Blapstinus pimalis Casey: 



injury to cotton seedlings. 87: 203; 

 1919: 438. 

 Blastophaga grossorum (fig wasp). 89: 



259. 

 Bledo, or careless weed (Aniaratithus 



palmeri). 1919: 428-429. 

 Blight: 

 bacterial, of alfalfa. 1921: 611. 

 fire, of apple and pear. 1921: 613. 

 Blood meal: 

 in milk substitute for feeding calves. 

 1920: 465-467; 1921: 582. 

 Blossom drop of tomato. 1921: 614. 

 Blue grass: F, 



Canada. Cir. 40. 

 Kentucky. Cir. 40. 

 Bog-rush, or Juncaceae family of plants. 



1919: 431-432. 

 Boll weevil, variety (Anthotiomns gratf- 

 dis thurberiae Pierce). 87: 173. 

 Mexican. (A. grandis Boh). 87: 173- 

 175, 203-204; 90: 274. 



Boll worm: 

 "Arizona pink". 1921: 583. 

 cotton. (Chloridea obsoleta Hubn). 



87: 175-178. 

 Egyptian pink. (Pectinophora gossy- 

 piella Saunders). 87: 178-180. 

 quarantine regulations against. 87: 

 203-204. 

 Bond, C. O. 1918: 281, 314-321; 1919: 



398. 

 Bone meal: 



in milk substitute for feeding calves. 

 1920: 465-467; 1921: 582. 

 Bordeaux mixture: 



in date rot control. 1921: 609. 

 Botany: 

 experimental work in. 1918: 297-302; 

 1919: 427-432; 1920: 455-463; 

 1921: 576-579. 

 projects. 1918: 283-284; 1919: 400; 



1920: 432; 1921: 553. 

 work at Flagstaff. 1920: 456-457. 

 Boulder Canyon: 

 average stream flow at . 95: 532. 

 reservoir site at. 95: 535, 538, 539, 

 540, 543. 

 Boutcloua bromoides (Spruce top 

 grama). 1919: 411. 

 B. curtipendula. (side-oats grama). 



1919: 411. 

 B. eriopoda (woolly-foot). 1919:411. 

 B. Rothrockii. 1919: 411. 

 Bouton, Rosa. 1921: 552. 

 Bouvardia iriphylla. 1919: 431. 

 Bradshaw, T. E. 94: 493. 

 Bran, in poison bait. 87: 195. 

 Brassica pekinensis. 1920: 473. 

 BrickcUia Wrightii. 1919: 430. 

 Bridges, cement. 86: 157-161, 171. 

 Broccoli. 1918: 310. 

 Brome grass. Cir. 40. 

 Brown ,C. B. Cir. 38; 1921: 552. 

 Brown, J. G. T. H. 136; T. H. 138; 

 1918: 284; 1919: 400; 1920: 429, 

 431, 432, 455-463; 1921: 550, 551, 

 554, 606-615. 

 Browse pastures versus grass pastures. 



1921: 577-578. 

 Brussels sprouts. 1918: 310. 

 Bryan, Dr. Kirk. 1920: 478. 

 Bryan, W. E. 1918: 282, 283, 314-321 ; 

 1919: 401, 456-462; 1920: 433, 480- 

 483; 1921: 554, 601-605. 

 Biicculatrix thurberiella Busck (cotton 



leaf perforator). 87: 184-186. 

 Buckeye Valley. 85: 5, 8, 9. 



