180 MISCELLANEOUS PUBLICATION NO. 725, U.S. DEPARTMENT OF AGRICULTURE 
Septotinia populiperda, new 
species, 2132 
Sequoia, giant 
injury from tourists, 1388, 
1390 
Sequoia gigantea--SEE Sequoia, 
giant 
Sequoia sempervirens--SEE 
Redwood 
Shade trees 
California, 2079 
care, 1303, 1339, 1340, 
construction damage, 536 
damaged, care, 1303 
dieback, 1301 
SEE ALSO UNDER names of 
dieback and hosts 
diseases--SEE UNDER Dis- 
eases and names of hosts 
drought effects, 2077 
fertilizing, 1329 
mycorrhizae, 465 
Northeast, 2136 
Pacific Northwest, 267 
Plains, 2258 
Rockies, 550 
Southeast, 1217 
Sphaeropsis canker, 1301 
windthrow and root rot, 248 
Shelterbelts 
adaptability of trees, 2264 
diseases, 567, +2249 22435 
2245 
Shoestring root rot, 
1437 
1865, 1875 
Schrenk, Hermann von, --SEE 
von Schrenk, Hermann 
Siggers, Paul V., 915, 
1305, 1905 
Silktree--SEE Mimosa-tree 
Simblum sphaerocephalum, 
1226 
Simblum texense var. albidum, 
1265 
1060, 
Sims, I. H., 1488, 1489 
SlagesiC. IMS 2263 
Slash 
decay, 265, 1147, 1242, 1839, 
1845, 1846, 1853, 1894 
disposal, 1010, 1703, 1834, 
1839 
fire danger, 1895 
Sleet damage, 2024 
Sleeth, Bailey, 981, 1099, 1100, 
1159;<16105161 1 
Slime: flux si3Za75¢ 1335 
Slowata, Stanley S., 1969, 1970 
Smelter injury, 858, 869, 870, 
Siel, S82eahorr 
and mistletoe, 1249 
and winterkilling, 854 
Smith;,nA rds. .) 39 
Smoketree, common 
Verticillium wilt, 504 
Smucker, Milton M., 1971, 
EGS 
SniveKer, wo codny ol; 
Snell, Walter H., 42, 
ZEUNL, heer 
Snow damage, 243, 1459, 1596 
snyder, SW .oC. 574955, 19735 
EOMA,S ASS 
Soil acidity 
fungicides, 1085 
root diseases, 769 
Soil aeration 
disease control, 1066 
plant growth, 1066 
Soils 
Asiatic chestnut response to, 
1166 
disinfection, pine plantation, 
1278 
SEE ALSO UNDER Nursery 
diseases 
fertilizer, 1278 
fumigation, 917, 918, 922, 
1283 
SEE ALSO UNDER Nursery 
diseases 
littleleaf disease, 235, 237, 
349, 350, 351, 948, 958 
Phytophthora cinnamomi, 233, 
2344 5235} 92357; 2958 
Spackman, William, Jr., 1941 
Sparassis radicata, new spe- 
cies, 2178 
Spaulding, Perley, 251, 344, 
579, 916, 1309, .1497,. 1584, 
2064, 2274 
Sphaceloma magnoliae, new 
species, 1107 
Sphaeria radicalis, 1691 
Sphaeropsis 
cankes:, K301 
Sphaeropsis ellisii, 361, 1301, 
2115 
Sphaeropsis malorum, 503, 
1308s 21.20 
Sphaeropsis quercina, 1301 
Sphaeropsis ulmicola, 1301 
Spongy white rot, 1866, 1876 
Spradling, Mae--SEE Chides- 
ter, Mae Spradling 
1941 
1504, 
