52 - 
Trr.f ida phis phaseoli ------- 
^Tjjy~^ ; ^r "-~t~"~j - — .. = _ 
T"uliptree aphid- --------- 
Tuv t3 -------- - - 
• - 
■e Ery*bhrorif:"ur8 ocmes 
?iDn pie les i sr ------ 
Tilhitefly ---.----,-- - - - 
Woolly— 
Pag< 
47 
71 
71 
71 
71 
2. 3 
arvol e 
21. g; 
ia- 
Yellow re 3.1'e 
21 
74 
■Hlfci..J . 
