- 91 - 
Page 
-Red- 
aphid - - - - 54, 62 
cedar aphid- --'--------------■------- 21 
potato aphid ------------------------ 40 
scale 72-74 
spider --16, 53, 80 
Rhc -odendron whitefly- ------------------- 
Rh o pal o s i rh um — 
prunifoliae -------'-■---------------- 46 
pseuclobrassicae- -------------- ------ -20, 47-49 
sv 
49 
i- • * 3 
subt cr^r neum ----------------------- 4, 49 
Root aph ..as- ------------------------ 4, 50 
Rose — 
aphid - ------------------------- 41 
leaf hopper - - - - -------- 71 
pests -- ------------------------ 55 
scale - . — ______ 74 
Rosy- 
aphid -------------------------- 5 
apple aphid ----------------------- 
Rust mite ------------------------- 16,52 
Rusty plur. aphid ---------------------- 22 
Saiccetia-- 
hemisphkerica ---------------------- 79 
oleao- ~-~ ~- -75, 79-31 
San Jose scale ----------------------- 74 
Scale insects ------------------ -52, 73, 75, 76-31 
Scurfy scale -____-_--__--___--_---_ 75 
Siphoccryi'.e indobrassicae . Sea Eho pal o s i phum ^seudobrassicae. 
Siphoncphora rosae. See Macro siphum rosoe. 
Six-spotted leafhopper ----- -""-" T" - - -__„__--_ 70 
Slaty- pray aphids- ---------- ~ ---------- - 51 
So g at a furcifera ---------------------- 82 
Spinach aphid ----------------------- 43 
Spirea aphid ------------------------ 15 
Spittle bugs ------------------------ 64 
Spruce gall aphid --------------------- 64 
Stictocephala f estina- ------------------- 82 
Strawberry — 
aphid ---------- -__ __ -__-_ 20 
spittle bug------------------------ 65 
Sucking insects- --------------------- -9, 58, 60 
Thistle aphid ----------------------- 4 
Three-cornered alfalfa hopper*- ------- -------- 
Tobacco — 
aphid 43, 44, 56, 57 
pests- _-----_---------.--_-----_.- 57 
Tomato psyllid ----------------- ------ 
Tcxoptera aurantii --------------------- 49 
Treehoppor ------------------------- 82 
Irse lice ---------------- — - - ----- 58 
Trial eurodes — 
sp.' 
4. 
vap ora riorum ----------------------- 5 
