

DISEASE 
FOLIAR 
NEMATODE 
(See Picture 
on Page 3) 
MILDEW 
(See Picture 
on Page 4) 
ROOT KNOT 
NEMATODE 
(Eelworm) 
ROOT ROT 
RUST 
(See Picture 
on Page 2) 
SEPTORIA 
LEAF SPOT 
(Leaf Blight) 
(See Picture 
on Page 3) 
VERTICILLIUM 
WILT 
(Seidewitz Disease) 
(See Picture 
on Page 4) 
Pies Pid: 
ST C 

Leaves first turn black or chocolate 
brown and leathery, then shrivel 
up, become brittle. Begins,at base 
of stem and may work up to the 
flowers. Most troublesome out of 
doors. 







Whitish powdery growth on upper 
surface of leaves. 
The nematodes or eelworms bore 
into the roots of the plants and 
cause knots or galls to develop on 
the root systems. As a result the 
plants are weak, yellowish and 
stunted in growth. 






Entire plant will wilt and recover 
during the evening. Foliage turns 
yellow, entire plant will die in a 
very short time. A number of soil 
borne organisms cause the loss of 
the roots. 









Chocolate brown powdery pustules 
on the lower surface of the leaves. 


Distinct circular spots on the leaves. 
These are greyish brown in color 
and-become brittle in the center. 
Affected leaves may turn yellow and 
die. More prevalent out of doors. 
Some varieties are more susceptible 
than others. Sea Gull is very sus- 
ceptible. 






Margins of leaves turn yellow and 
eventually wilt or dry up. This be- 
gins at base of plant and works up 
the stems, May affect one side of 
a stem or plant more than the other. 
No distinct spots. Varieties vary in 
resistance to this disease. 




ONTROL 
wher Ceetol, 
etetnete 
CONTROL 
Sodium selenate applied in liquid form 
to the soil at the rate of 1/4 gram per 
square foot of bed area is very eftec- 
tive. Wait 2 to 4 weeks after benching 
before applying. (See Page 13 for 
further information.) 
Spray at regular weekly intervals with 
a good Wettable Sulfur, | lb. per 100 
gallons of water to which a good 
commercial spreader has been added. 
Fermate, | ounce to 4 gallons of 
water is effective. 
Soil sterilization, preferably with 
steam, is very effective in eliminating 
the root knot nematodes from the 
soil. Dowfume G is a good soil fumi- 
gation that will kill nematodes. 
Do not plant any cuttings that have 
been infected with damping off, Use 
sterilized soil. Remove all affected 
plants when noticed. Do not keep the 
soil too moist. 
Fermate, | ounce to 4 gallons of 
water is most effective. 
When cuttings are received dunk 
roots and tops into Fermate (2 table- 
spoonsful to a gallon). Spray the 
plants with Fermate | ounce to 4 gal. 
water plus !/3 teaspoonful of DuPont 
Spreader Sticker every ten to four- 
teen days. Cloth house mums should 
be kept covered until the buds can 
be seen. May we recommend that 
you add the sticker and a little water 
into a jar then add the Fermate, 
shake thoroughly. Then dump Fermate 
from the jar into sprayer with proper 
amount of water. 
Plant only disease free cultured cut- 
tings in soil which has been steam 
sterilized. 
