102 
F. & F. NURSERIES 
Host 
Disease 
Control How used 
When 
Oak 
Leaf 
Bordeaux 
4-4-50 
3 sprays at 2*wk. 
Scorch 
intervals, starting 
when leaves half 
grown. 
Destroy leaves 
In fall 
Leaf Spot 
Twig Bli't 
Destroy leaves 
In fall 
Prune 
Midsummer 
Pachysan. 
Leaf 
Blotch 
Bordeaux 
2-3-50 
During growing 
season until chk'd 
Pine 
Blister 
Alternate host 
species of 
rtibes. Remove Ribes 
Rust 
plants for 500 feet from pine plantations; Black 
currants for one mile. 
Needle 
Destroy fallen 
Fall & winter 
Cast 
needles 
Tip Blight 
Prune 
Early summer. 
Bordeaux 
4-4-50 
As growth takes 
place in spring, 2 
applications 
Gall Rust 
Alternate host, 
Oak. No control except separa* 
tion of hosts and pruning out galls from pine 
Plane Tree 
Leaf & 
Bordeaux 
4-4-50 
In spring, 2*3 spr., 
Twig 
Destroy leaves 
at 10*day inter* 
vals,starting when 
leaves half grown 
In fall 
Prune 
In winter 
Privet 
Twig Bl't 
Lime*sulfur 
1-9 
Dormant 
Bordeaux 
4-4-50 
3 sprays appl. at 
2*week intervals 
dur'g May & June 
Rhoio Jen- 
Wilt 
Rotation crops 
1 month before 
planting 
Increase soil 
Aluminum sulfate 
acidity with 
at 1 oz. sq. yd. 
aluminum sul* 
Sulfur at 4 oz. 
fate or sulphur 
per sq. yd. 
Leaf 
Bordeaux 
4-4-50 
Early in summer 
Diseases 
as growth is tak* 
ing place after 
blooming 
Rose 
Leaf Spot 
Sulfur 
Dust 
During growing 
Wettable sulfur 
season from May 
sprays as 
to Sept, at 10*14 
recommended 
day intervals 
Canker 
44 
44 
44 
Mildew 
44 
44 
44 
Salix 
Scab 
Bordeaux 
4-4-50 
As buds begin to 
open and at 7*day 
intervals until 
l'ves fully formed 
Spirea 
Fire Blight 
See Cotoneaster 
Spruce 
Canker 
Prune 
When noticed 
Bordeaux 
4-4-50 
2 applications late 
June, early July 
Symphori* 
Anthrac* 
Bordeaux 
4-4-50 
4-5 sprays during 
carpos 
nose 
growing season 
Vaccinium 
Leaf Spot 
Bordeaux 
4-4-50 
2-3 sprays early 
in summer at 2* 
week intervals, 
starting June 1st. 
