PEST and DISEASE CONTROL CHART 
INSECT 
Red Spider 
Leaf roller 
Mum midge 
White fly 
Leafhopper 
Ants, Scale 
Tarnished 
plant bug 
Mealybugs 
Grass- 
hoppers 
Slugs, snails, 
cutworms, 
sowbugs 
Leafminer 
and Foliar 
nematode 
Rose midge 
and Straw- 
berry root 
worm 
Mite 
Root nema- | 
todes 
CROP 
Rose and 
Carnation 
and Chrys- 
anthemum 
flowers and 
potted 
plants 
or outside 
Bulbs 
Any 
Any 
mum 
Rose 
Begonia 
Cyclamen 
Hydrangea 
lv 
Saintpaulia 
Snapdragon 

Gardenia 
Other cut 
Any, inside 
Gladiolus 
Chrysanthe- 
CONTROL MEASURES 
TEPP, parathion, 
syringe. 
TEPP, parathion, 
azobenzene, sodi- 
um selenate, Dow- 
spray |7, DN Dusts. 
TEPP, parathion, 
rotenone. 
DDT, benzene hexa 
chloride, TEPP, 
parathion. 
| 5% DDT dust, cor- 
rosive _sublimate, 
formaldehyde, Ly- 
sol. 
TEPP, parathion, 
nicotine fumigation 
or nicotine and 
soap spray, ben- 
zene hexa chloride. 
DDT, parathion. 
Nicotine and Volck. 
Loro. 
Chlordane. DDT 
second choice. 
Snarol. 
Sodium selenate, 
nicotine 1-200 and 
soap. 
\DDT. Three appli- 
ications on plants, 
soil, and walks, 12 
days apart. 
Thiocide or nico- 
tine and soap 
| sprays. 
Sodium selenate. 
HELP. ERE aos 
| parathion. 
Steam sterilize soil 
| and pots. 
| DD (not DDT). 

REMARKS 
Dow materials 
bleach above 80° 
F. 
DDT kills Kalan- 
choe. Use tartar 
emetic, nicotine or 
rotenone. 
Bulb disinfectants. 
Sodium selenate 
O.K. on tolerant 
plants. 
Syringe tender 
plants. 
With caution. 
Pinch and destroy 
heavily infested 
shoots. Tobacco 
mulch not needed. 
Regular 
necessary. 
spraying 
on tolerant 
O.K. 
plants. 
Avoid undue wet- 
ting of soil with 
spray." >. 

DISEASE 
Stunt 
i 
Chlorosis 
Damping off 
Black spot 
Mildew 
|| Alternaria 
and Septoria 
blight 
Rust 
Root rot and 
Soft rot 
Botrytis 
||blight 
Leafspot 
(bacterial 
and fungus) 
CROP 
mum 
Azalea 
Gardenia 
Hydrangea 
Any 
mum 
Ivy 
Chrysanthe- 
mum 
Hydrangea 
Rose 
Carnation 
Aster 
Carnation 
Calla 
Lily 
Aster 
Azalea 
Begonia 
Carnation 
Chrysanthe- 
mum 
Cyclamen 
Gardenia 
Geranium 

/ Ivy 
Chrysanthe- 
Chrysanthe- 
Calendula 
Saintpaulia 
Snapdragon 
Snapdragon 
| Hydrangea | 
CONTROL MEASURES 
No control known. 
Re-establish root 
action and apply 
iron sulfate at | oz. 
per 2 gal. Acid 
peat desirable in 
soil mixture. 
Destroy badly in- 
fected plants. 
Cuprocide. 
eee er oe ee oe 
Steam sterilize soil 
mixture, or treat 
soil with Formacide. 
ASA UN UL RAL 
| lb. Fermate per 
100 gal. with San- 
tomerse S_ 1-2000; 
Kopper Queen, 
Fungtrogen. 
| Ib. Fermate, Zer- 
late or Parzate per 
100 gal. with San- 
tomerse S_ 1-2000. 
Wettable sulfur 
sprays. Sulfur dusts. 
Greenol, Kopper 
Queen, Grape and 
Roc 
1-2 lb. Fermate, 
Zerlate or Parzate 
per 100 gal. with 
spreader every 2-3 
wks. in houses, and 
every 7-10 days in 
field. 
Fermate, Zerlate or 
Parzate sprays. Sul- 
phur dusts or sprays. 
| Ib. New Improv- 
ed Ceresan to 50 
gal. water. Soak | 
hour and plant. 
Formaldehyde 1-50 
for | hour. 
Fermate, Zerlate or 
Parzate sprays. 
Fermate, Zerlate 
or Parzate sprays. 
Avoid overhead 
syringing, give 
plenty of space 
and air. 


REMARKS 
In case it is a virus, 
keep insects under 
control to prevent 
spread. 
May be caused by 
high pH, over- 
watering, root 
nematodes, sym- 
phylids. 
Sometimes called 
yellows. Spread by 
aphids and leaf- 
hoppers — kee 
them under contee 
Treat seeds. Dust 
infected areas to 
prevent spreading. 
Regular 
necessary. 
spraying 
Both cause some 
bleaching of flow- 
ers. 
Avoid overhead 
syringing. 
Steam sterilize pots 
and soil. 
Avoid overhead 
syringing. 
Discard badly in- 
fected plants. On 
English ivy it is re- 
ported that keep- 
ing soil at pH 5.0 
reduces leafspot. 
Compiled by 
OHIO FLORISTS ASSOCIATION 

