408 



Minnesota Plant Diseases. 



Cup fungi, 



green, rot of, 



imperfect fungi of, 



leaf spot of alfalfa, 



leaf spot of clover, 309, 



on dung, 



on fruit, 



on two hosts, 



ring disease of conifers, 



sclerotium disease of cu- 

 cumbers, 



sclerotium disease of let- 

 tuce, 



storage organs of (Fig. 4), 



tar spots of willow and 



269, 



143, 



386, 



maple, 



transition to, 



true (see cup fungi), 

 Currant, anthracnose of, 



cluster-cup rust of, 



fall of leaves, 



pore fungus rot, 



red knot of, 322, 



root rot of (Fig. 163), 



rust of, 

 Currant, wild black, sedge rust 



of, 



Cure of disease, 201, 202, 200, 

 Cure, mechanical means in 

 methods of, 

 methods of, 



Curl of leaf, 120, 



Cystidia, 



Doedalea quercina, 

 Dahlia, sclerotium disease of 



roots, 

 Damping-off fungi, 45, 108, 



degree of parasitism, 



of prothallia, 383, 



of seedlings (Fig. 34). 

 Dandelion, Chytridines on, 



leaf wart, 



stunted leaves, 

 Daphne, parasites of, 

 Dacryomycetinea-, 153, 154. 



Darnel, age stimulation, 



infection of, 

 Dasyscypha resinaria, 

 Dead stick fungi, 

 Death of plants, 

 Deer, wounds caused by. 

 Degeneration of structure in 

 animals. 



267 

 149 



309 



310 



38 



65 



145 



270 



320 



322 

 14 



270 



139 



144 



327 

 387 

 152 

 320 



323 



321 



317 

 391 



210 



2O9 

 2O9 

 121 

 171 



257 



322 



384 



77 

 105 

 399 



Si 



67 

 769 



83 



94 



268 



139 



90 



47 



10 



Degeneration of structure in 



plants, 10 



Destroyers of organs, 80 



of small areas (Fig. 35), 78, 79 



of whole plants, 80 



of host, immediate, 78 



Diphtheria, bacteria of, 193 



Dictyophora duplicata, 188 



ravenellii (Figs. 3, 94), 187 



Disease, bacteria causing, 193 



cure of, 202, 209, 210 



difficulty of definition, i 



distinction between health 



and, 90, 91 



economics of, 201 



factors of, 92 



inheritance of, 94 



in plants, 90 



in plants, bacterial, 192 



losses by, 201 



of birds, 73 



of field and forage crops, 282 

 of fis'h and lower vertebrates 



(Fig. 32), 71 



of garden plants, 316 

 of greenhouse and orna- 

 mental plants. 



of insects, 67 



of lower animals, 66 



of lower mammals, 73 



of man, 74 



of mushrooms, red, 395 



of orchards and vineyards, 347 



of plants, bacterial, 196 



of plants, organic, I 



of plants, museum of, 209 



of plants, inorganic, I 

 of timber and shade trees, 



235, 260 

 of trees, prevention of, 



237. 238 239, 240 



of vineyards, 365 



prevention and state aid. 208 

 prevention of, 202 to 209 

 Discomycetes (Figs. 4, 10. 14, 



61 to 65), 140. 141- M 2 



Distribution of spores, 26 



Docks, smuts in, 158 



Dodder, 10 



a parasitic seed plant. 203 



Dogs, fungi on. 73 



Douglas fir, ring scale on, 256 



