Midwest Tree Fruit Spray Guide - Iowa State University Extension ...

Efficacy of Selected Fungicides Against Apple Diseases
FUNGICIDE SCAB
Bayleton*
Cabrio
Captan
Flint
Fontelis
Indar
Inspire Super MP*
Luna Sensation
Luna Tranquility
Mancozeb
(Dithane, Manzate, Penncozeb)
Merivon
Polyram
Pristine
Procure*
Rally*
Vintage*
Scala
Sovran
Sulfur
Syllit*
Topguard
Topsin-M*
Vangard
Ziram
POWDERY
MILDEW RUST
BLACK ROT
WHITE ROT
– Unknown or doesn’t apply O = none P = poor F = fair G = good E = excellent
* Many areas of the Midwest may contain strains of the apple scab and powdery mildew fungi tolerant of these chemicals.
Therefore, these fungicides may not be effective in some areas.
Efficacy of Selected Fungicides Against Stone Fruit Diseases
FUNGICIDE BROWN ROT
BLOSSOM
BLIGHT
Adament
Bravo
Captan
Captevate
Elevate
Elite*
Fixed copper
Fontelis
Gem
Indar*
Luna Sensation
Merivon
Orbit*
Pristine
Procure*
Rally*
Rovral
Rubigan (Vintage)*
Quash
Quintec
Scala
Sulfur
Syllit*
Topsin-M*
Vangard
Ziram
E
G
G
E
E
E
–
E
–
E
E
E
E
G
G
E
E
–
G
O
G
F
–
E
G
P–F
P
E
G
E
E
E
E
E
E
G
E
G
E
E
E
E
G
E
F
E
E
E
G
F
E
E
O
G
E
E
E
E
E
O
E
O
E
E
E
E
–
G
G
O
E
E
–
O
BROWN ROT
FRUIT ROT
E
–
F-G
E
E
E
–
E
–
E
E
E
E
G
G
–
E
–
G
O
G
P
P
E
G
P–F
BITTER
ROT
SOOTY BLOTCH
AND FLYSPECK
– Unknown or doesn’t apply; O = none; P = poor; F = fair; G = good; E = excellent
* Many areas of the Midwest may contain strains of the brown rot, powdery mildew, and cherry leaf spot fungi tolerant of
these chemicals. Therefore, these fungicides may not be effective in some areas.
** Excellent where the leaf spot pathogen is not resistant but only fair where sterol-inhibiting fungicides have been used
extensively.
E
–
O
G
G
E
E
G
G
G
F–G
G
E
E
E
E
–
E
O
P
E
O
–
G
PEACH
LEAF
CURL
–
E
–
–
–
–
G
–
–
–
–
–
–
–
–
–
–
–
–
O
–
–
G
–
–
G
O
–
G
G
?
O
–
G
–
G
G
G
G
O
O
O
–
G
F
P
–
G
–
P
PEACH
SCAB
E
G
G
–
–
–
–
F–G
E
–
–
F–G
G
G
–
–
P
–
G
O
–
G
–
G
–
G
45 MIDWEST FRUIT TREE SPRAY GUIDE
O
–
E
E
?
O
–
G
–
E
G
E
G
O
O
O
–
G
–
O
–
P
–
E
POWDERY
MILDEW
E
O
O
–
–
G
F
G
G
G
G
G
G
E
E
E
–
G
–
G
–
G
O
F
–
–
CHERRY
LEAF
SPOT
E
E
G
G
–
G**
G
F–G
E
E**
F–G
F–G
G**
E
G**
E**
F
E**
–
O
–
P
G
G
–
F
O
–
F–G
E
?
G
G
G
–
E
G
E
E
O
O
O
–
E
P
P
–
E
–
F–G
BLACK
KNOT
OF PLUM
–
E
G
G
–
–
P
–
–
–
–
–
–
–
–
–
–
–
–
O
–
O
–
F
–
–