56 LITTLEFIELD-WYMAN NURSERIES 
Host 
Diseases 
Control 
How used When 
Almond 
(Flow’g) 
Brown rot 
of leaves 
& twigs 
Bordeaux 
4-4-50 
Spring and early 
summer 
Ampelopsi. 
Leaf Spot 
Bordeaux 
4-4-50 
Thruout season at 
10-day intervals 
Androm’d 
(Pieris) 
Leaf Spot 
Bordeaux 
2-3-50 
Thruout season at 
2-week intervals 
Azalea 
Leaf sc’rch 
Leaf Gall 
Bordeaux 
4-4-50 
July & August 
Barberry 
Leaf Spot 
Bordeaux 
Prune out dead 
twigs 
4-4-50 
Spring & early 
summer 
Beech 
Canker 
Prune 
Control scale 
Dormant 
Winter & spring 
Early March 
Birch 
Leaf Spot, 
Rust, Mild. 
Bordeaux 
4-4-50 
Spring 
Boxwood 
Canker 
Prune dead 
twigs 
Bordeaux or 
Lime-sul. 
4-4-50 
1-49 
At any time 
Spring & summer 
Spring & summer 
Leaf Spots 
Bordeaux 
4-4-50 
Spring & summer 
Buckeye 
Leaf Blotch 
Bordeaux 
4-4-50 
As leaves are un- 
(Horse- 
chestnut) 
Lime-sul. 
1-49 
folding and 10 
days later 
Cotoneast. 
Fire Blight 
Prune 
Any time noticed 
Crata gus 
Fire Blight 
Prune 
Bordeaux 
2-3-50 
Any time noticed 
At blooming 
Leaf Spot 
Bordeaux 
4-4-50 
2-3 sprays June 
& July 
Elm 
Leaf Spot 
Dutch Elm 
Disease 
Cankers 
Bordeaux 
Burn leaves 
Control Europ. 
elm bark beetle 
Prune 
4-4-50 
When leaves are 
half-sized & again 
in 10 da. or 2 wk. 
Prune out in win¬ 
ter all dead and 
weak wood 
Winter 
Junipers 
Twig Bl’t 
Rusts 
Bordeaux 
Prune dead twg. 
See Mt. Ash 
4-4-50 
Early spring, espe¬ 
cially on young 
stock 
Early spring 
Kerria 
Die-Back 
Bordeaux 
4-4-50 
At 2-wk. intervals 
during July-Aug. 
Laurel 
Leaf Spot 
Bordeaux 
4-4-50 
June, July & Aug. 
2-week intervals 
Lilac 
Mildew 
Sulfur 
Dust or 
spray 
Late summer 
Leaf and 
Twig Bl’t 
Bordeaux 
4-4-50 
Early in spring. 2 
applications at 10- 
day intervals after 
growth starts 
Linden 
Large Leaf 
Blotch 
Bordeaux 
4-4-50 
3-4 applications 
at 2-wk. intervals 
Spr. & early sum. 
Maple 
Leaf 
Scorch 
Fertilize 
4-8-6 
mixture 
Applied in spr. be¬ 
fore growth starts 
Leaf Spot 
Bordeaux 
4-4-50 
2 appl. 10 days 
apart early spring 
Wilt 
Fertilize 
4-8-6 
mixture 
In spring before 
growth starts 
Japanese 
Cankers & 
Prune 
When noticed. 
Maple 
Twig Bl’t 
Bordeaux 
4-4-50 
During spring & 
early summer 
Mountain 
Rust 
Alternate host Juniper. Separation of hosts only 
Ash 
known control. Lime-sulf. 1-49 in spr. might help 
