Minnesota Plant Diseases. 



409 



Dothideacea? (black knot), 



(Fig. 59), 135, 136 



Downy mildews (Fig. 44), 



80, 109, no, III 



of beans, peas, etc., 336, 337 

 of beets, 339 



of burreed elder (Fig. 45), in 

 of clovers, 314 



of cucumber, melon, etc. 

 (Figs. 168 to 171), 



334- 335- 336, 338 



of grape on leaf (Fig 196), 368 

 of lettuce, 337, 339 



of mustards, cabbage,, etc., 331 

 of onion, 333. 334 



of potato (Figs. 1 66, 167) 



no, in. 112, 331, 332, 333 

 of seedlings, 365. 382 



of spinach. 339 



of vines (Figs. 196, 197, 



I9), 368.369.370 



of violet, 384 



sucker threads of (Fig. 2). n 



Dragon flies, parasites of. 71 



Drain pipe molds (Fig. 43). 101, 108 



Drop of lettuce, 322. 380. 381 



Dry bordeaux powder, 218, .'.'7. 2<W 



Dry rot (Figs. 120, 121, 122), 



245. 247, 248. 249, 250 



Dry rot fungus. 175 



strands of (Fig. 5). 15 



Duckweed, alga: in, 198 



Dung, bird's-nest fungus on. 187 



constituents of. 137 



cup fungi on. 144 



-dwelling fungus (Fig-, id. 



17*. 37-3* 



-dwelling fungus, sapro- 

 phyte. 37 

 fungi, spore distribution, 30 

 fungi and allies ( Fig. 60). 



136. i.?7 



gill fungi on. 17^ 



Dusts, method of cure. _>ixj, _>io 



powders for. _'_'7 



Dutchman's breeches, rust of. 380 



Dye-forming bacteria. i<>4 



Early blight of potatoes u<> 



Earth, basidium-bearing fungi 



on. 154 



-dwelling fungi (Fig. iS). 38,39 



gill fungi on, 179 



hard -kinned puff-balls on, 183 



Earth, 



long stalked puff-balls on, 182 



pore fungi on, 178 



Earth-stars (Fig. 93), 185, 186 



Earth tongues, 147 



Eau celeste, 219- 



Economics of diseases, 201 



Edible gill fungi (Fig. 8)), 179 



pore fungi, 178 



puff-balls, 186 



Effect of disease on anatomy of 



host, 2, 87 



of host on parasite, 88 



of parasitic fungi on tissues. 84 



Egg, hen's, fungi on, 73 



-inhabiting fungi, 44 



of carrion fungi, 188 



Elder, rust of. x 



Electricity, effect on bacteria. 192 



use in timber treatment. 240 



Elm. black spots on leaves, 136 



I'leurotus rot ( Fig. 2O>. 



40, .'65. 266 

 powdery mildew on ( Fig. 



135^- 1-5- -77 



slime llux of. 271 



velvet Clemmed Collybia on, 265 



Elynuis. orange leaf rust on, _><)i 



Endomyces decipiens. 394 



in slime rlux. .'71 



Endomycetacear, 120 



Endophytic fungi. (n 



spraying of. 21 I 



Endophytic parasite in cells of 



grass grain (Fig. 28). 60 



Ensihgc, bacteria of. i<>5 



Entomophthorinea- < inject 



molds), (Fig. 47). 115. 116 



F.pichlu- typhina, 306 



Epidemic*. 100. 101. lo_> 



and pure cultures of iT"ps, 206 



checked by spraying ( Fig. 



40), 101 



condition.- and cau.-e> of. IO_' 

 examples of (Fig. 3<;l. 99 



]o-*e- by. -'01 



i if downy niihk w-. I IM 



i-f lish molds. 107 



of mildew "ii cuc;;mber- 



i l-'ig. 40 i. 

 of iowder ihiKlew-. 



J>re\ elltioll 

 Mate aid in 



101 

 I_'5 



f. JO_'. -'07 



ombating. 208. 2oj 



