Table of Contents
Herbicide Classification by Mode of Action
Inhibit photosynthetic electron transport
Triazines
Inhibit photosynthetic electron transport
Phenylureas
Inhibit photosynthetic electron transport
Uracils
Inhibit photosynthetic electron transport
Diazinones
Inhibit photosynthetic electron transport
Bipyridyliums
Inhibit photosynthetic electron transport
Benzonitriles
Inhibit amino acid biosynthesis (ALS)—Imi’s
Imidazolinones (Imi’s)
Inhibit amino acid biosynthesis (ALS)—SU’s
Sulfonylureas (SU’s)
Sulfonylureas (SU’s) cont.
Inhibit amino acid biosynthesis (ALS)—SU’s
Inhibit amino acid biosynthesis (ALS)—SU’s
Inhibit amino acid biosynthesis (ALS)
Sulfonamides
Inhibit amino acid biosynthesis
Phosphono amino acid derivatives
Inhibit protporphyringen oxidase (PPO’S)
PPO’s
Inhibit lipid biosynthesis (ACCase Inhibitors)
ACCase Inhibitors
Act as growth regulators
Growth Regulators: Oldest compounds
Act as a growth regulator
Inhibit carotenoid biosynthesis (Pigment inhibitors)
Pigment inhibitors
Inhibit seedling growth (Shoot inhibitors)
Shoot inhibitors (Chloroacetamides)
Inhibit seedling growth (Shoot inhibitors)
Shoot inhibitors (Thiocarbamates)
Inhibit seedling growth (Root inhibitors – DNA’s)
Root inhibitors (Dinitroanalines)
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Author: Ron Ritter, University of Maryland |