402 



Minnesota Plant Diseases. 



Antagonisms of bacteria, 193 



Anther-inhabiting parasites, 65 



Anthers, smuts in, 158 



Anthracnose, 151 



of bean, , 327 



of currant and gooseberry, 327 



of vines, 367, 368 



Ants, parasites of, 71 



Apiosporium, 394 



Apparatus, fixings for spray 



(Fig. Ill), 228 



Apples, 



bitter or ripe rot of (Fig. 



190), 356,357 



black rot of (Fig. 194), 363, 364 

 blight of (Fig. 19s), 364, 36s 

 brown rot of, 357, 358 



cedar, of red cedar (Figs. 



181, 182), 347, 348, 349 



leaf rust of (Figs. 181, 182), 



347, 348, 349, 350 

 powdery mildew of, 361 



ripe rot of, 152 



rot (Fig. 190), 356, 357 



rusts, 166 



scab (Figs. 183, 184, 185, l86, 



187), 138, 351, 352, 353, 354 

 slime flux of, 271 



Arcyria serpata (Fig. 100), 197 



Armillaria mellea (Figs. 6, 128), 



260, 261, 262 

 Aroids, rust of, 392 



Arsenic mixtures 213, 214 



Attack, methods of, in parasites, 61 

 Auriculariineae (see Jew's ear 



fungi). 

 Ascomycetes, 117 



Ash, 



leaf rust (Figs. 75, 76), 



162, 163, 277 

 powdery mildew of, 395 



Asparagus, 



rust of (Fig. 161), 166, 318, 319 

 spray pump for rust of 



(Figs. 109,110), 222,224 



sterile fungus rot of, 329 



Aspergillaceae, 122 



Aster, 



china, sterile fungus rot of, 329 

 Bacillus, a bacterial form, igo 



amylovorus (Fig. 97), 



193, 364, 365 

 of wet rot (Fig. 172), 340 



■Bacillus, 



sorghi, 314, 31S 



tracheiphilus (Fig. 173), 341 



Bacteria (Fig. 96), 189 to 196 



air-loving and air-shunning, 191 



and iron ore, 191 

 apple and pear blight, 364, 365 



assisting in fermentation, 119 



assisting in wood rot, 40 



bean leaf blight, 342 



black rot of cabbage, 342 

 cause of disease, 189, 193 



cause of plant disease, 192 



classification of, 190 



colorations by, 194 



coloring matters of, 189 



diseases in plants, 191 



dye-forming, 194 



fermentation by, 194 



forms and sizes of, 189 



general characters, 189 



heat-loving, 192 



in beer and wine, 196 



in bread and beer making, 195 



in cheese, 196 



in slime exudations, 120 



in slime flux, 271 



in tanning, 196 



influence of light, etc., on, 192 



light and heat forming, 194 



multiplication of, 190 



nitrifying, 195 



nodules of (Fig. 98), 195 

 of fire-bhght of apples (Fig. 



97), 193 

 of hay-curing and ensilage, 195 

 of rancid butter, 191 

 of root nodules (Fig. 99), 196 

 of vinegar, 191 

 partnerships and antagon- 

 isms, 193 

 partnerships with plants, 50 

 pathologic, 193 

 phosphorescence of, 194 

 physiology of, 191 

 relationships, 189 

 rennet, 196 

 reproduction of, 190 

 sorghum blight, 314 

 spores of, 191 

 vinegar, 195 

 wet rot of potato (Fig. 172), 340 

 wilt of cucurbits (Fig. 173), 341 



