Introduction

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• Biochemistry:
º Primary basis to classify fungicides, developed by Fungicide Resistance Action Committee (FRAC) using their
general Mode of Action on fungi and their chemistry.
º All fungicides within a group share a common mode of action and resistance mechanism.
º Fungicides within a group may have different chemical structures.
º Resistance management strategies required wherever resistance is known or there is a risk of resistance
development
º See Table 1.