36 Chapter 2 Table 2.1. Fungicide Resistance Action Committee (FRAC) designations for fungicide mode of action (MOA) codes and resistance groups for active ingredients used for turf disease control FRAC MOA codea
Fungicide active ingredient
Basic manufacturer product
FRAC resistance group
Nucleic acid synthesis
A
mefenoxam
Subdue Maxx
4
Microtubules, mitosis, and cell growth
B B1
thiophanate-methyl
Cleary 3336
1
B5
fluopicolide
Stellar
43
C2
boscalid flutolanil
Emerald Prostar
7 7
C3
azoxystrobin fluoxastrobin pyraclostrobin trifloxystrobin
Heritage Disarm Insignia Compass
11 11 11 11
C4
cyazofamid
Segway
21
E2
fludioxonil
Medallion
12
E3
iprodione vinclozolin
Chipco 26GT Curalan
2 2
F3
chloroneb PCNB etridiazole
Chloroneb Turfcide Koban
14 14 14
F4
propamocarb
Banol
28
Metabolic or cellular target
Respiration processes (mitochondria)
Signal transduction—cell wall and cell membrane components
Lipids and cell membrane systems
C
E
F
Ergosterol biosynthesis (cell membrane)
G
cyproconazole fenarimol metconazole myclobutanil propiconazole tebuconazole triadimefon triticonazole
Sentinel Rubigan Tourney Eagle Banner Maxx Torque Bayleton Trinity/Triton
3 3 3 3 3 3 3 3
Glucan (chitin) synthesis in cell walls
H
polyoxin D
Endorse/Affirm
19
Multi-site activity…nonselective inhibition of enzyme function reactions with cellular constituents.
M
chlorothalonil mancozeb thiram
Daconil Fore Spotrete
M M M
copper sulfur
Assorted products
fosetyl Al phosphonic acids
Chipco Signature
Uncertain mode of action a
U
See http://www.frac.info/frac/publication/anhang/FRAC_Code_List_2010.pdf for an explanation of FRAC codes.
U U