Minnesota Plant Diseases. 



Epiphytic fungi, 60 



spraying of, 211 



Ergot disease of grasses (Figs. 



154, 155), 306 to 309 



Ergot fungi (Figs. 53, 54), 



128, 129, 130 

 fruiting bodies and spores 



(Fig. 55), 130 



inoculation by, 98 



Ergot of grasses (Figs. 53, 54), 



127, 128 



of rye, 64 



of rye, spore distribution, 28 

 of rye, storage organs, 14 



storage organs (Figs. 53, 



54), 127, 128, 129 



Ergotism, 309 



Erysiphaceae (Figs. 50, 51, 52), 



124, 125 

 Erysiphe cichoracearum (Fig. 



210), 324, 325, 380, 396, 397 



communis, 395, 396 



galeopsidis, 397 



graminis (Fig. 152), 304 



Exoascaceae (Fig. 49), 120, 121 



Exoascus cerasi, 363 



pruni (Fig. 193), 361, 362 



species of, 271 



Exobasidiineae, 170, 171 



Exobasidium (Fig. 37), 83 



yaccinii, 385 



Explosive apparatus, 31 



ball-throwing fungus, 33 



for spore distribution (Fig. 



14), 3^ 



External fungi, spraying of, 211 

 Exudations, fungi in, 120 



Factors of disease, 2, 92 



Fairy rings (Fig. 8), 18,20 



False tinder-fungus rot, 250 



False truffles, 123 



Fatty Pholiota rot (Fig. 129), 



262, 263 



Feathers, blue mold allies on, 123 



fungi on, 42, 121 



Fermentation, bacterial, 194 



caused by yeasts, 119 



Ferns, damping-off of prothallia, 383 



molds on sexual plants of, 116 



rusts of, 165, 387 



Fern worts, 198 



Fertilizers and prevention of 



disease, 206 



Field crop diseases, 282 



Fire blight of apples (Fig. 



195), 364, 365 



Fish eggs, fungi on, 72 



Fish hatcheries, Chytridines in, 105 

 Fish molds (Figs. 32, 42), 



71, 72, 105, 1 06, 107 



distribution of spores, 27 



half saprophytes, 37 



on crabs, 67 



saprophytic habit, 36 



spore case of (Fig. 33), 72 



Fish oil, in resin bordeaux, 218 



Fish, parasites of (Fig. 32), 71 



Fixings for spray apparatus 



(Fig. in), 228 



Fixation of nitrogen by bacteria, 



195 

 Flattened pore fungus rot 



Fig. 123), 251,252 



Flax wilt (Figs. 156, 157, 158, 



I59)i 3io to 315 



Flies, parasites of, 68 



spore distribution by, 188 



water molds on, 107 



Flowering plants, 7 



Flower-pot algae, 9, 49 



Flowers of sulphur, for dusting, 227 



Flowers, smuts on, 65 



Flux slime, on trees, 271 



Fly cholera, caused by molds 



(Fig. 47), H5 



explosive apparatus, 31 



Fly wood, wood rot, 240 



Fodder grasses, smothering 



fungus of, 306 



Fomes applanatus (Fig. 123), 



251, 252 



fomentarius, 251 



igniarius, 250 



ribis, 320 



Food mold habit, 43 



stuffs, destroyed by molds, 122 



Forage crop diseases, 282 



Formalin, a steep, 221, 223 



for fruit soft rot, 356 



for onion smut, 320 



for oat smut and stinking 



wheat smut, 



221, 223, 293, 294, 296 



for potato scab, 223, 326 



prevention of timber rot, 240 



Formulae for sprays, 215 



