NORTH ABINGTON, MASS. 
Host 
Diseases 
Control How used 
When 
Oak 
Leaf 
Bordeaux 
4-4-50 
3 sprays at 2-wk. 
Seorch 
intervals starting 
when leaves half 
grown 
Destroy leaves 
In fall 
Leaf Spot 
Destroy leaves 
In fall 
Twig Bli’t 
i’rune 
Midsummer 
Pachysan. 
Leaf 
Bordeaux 
2-3-50 
During growing 
Blotch 
season until chk’d 
Pine 
Blister 
Rust 
Alternate host species of Ribes. Remove Ribes 
plants for 500 feet from pine plantations; Black 
currants for one mile. 
Needle 
Destroy fallen 
Fall & winter 
Cast 
Tip Blight 
needles 
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 & 
Twig 
Bordeaux 
4-4-50 
In spring, 2-3 spr., 
at 10-day inter¬ 
vals, starting when 
eaves half grown 
Destroy leaves 
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 
Rhododen- 
Wilt 
Rotation crops 
1 month before 
dron 
Increase soil 
planting 
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 
a 
u 
n 
Mildew 
a 
l i 
l< 
Salix 
Scab 
Bordeaux 
4-4-50 
As buds begin to 
open and at 7-day 
t 
intervals until 
l’ves fully formed 
Spirea 
Fire Blight 
See Cotoneaster 
When noticed 
Spruce 
Canker 
Prune 
Bordeaux 
4-4-50 
2 applications late 
June, early July 
Symphori- 
Anthrac- 
Bordeaux 
4-4-50 
4-5 sprays during 
carpos 
nose 
growing season 
Vaccininm 
Leaf Spot 
Bordeaux 
4-4-50 
2-3 sprays early 
in summer at 2- 
week intervals, 
starting June 1st 
