ABSTRACT

Fungicides constitute an important group of pesticides

used for pre-and postharvest protection of cereals,

fruit, and vegetables from fungal diseases. This group

includes different chemical families such as acylala-

nine, anilinopyrimidine, azole, benzimidazole, dithio-

andbisdithio-carbamates,cyanopyrrole,dicarboximide,

morpholine, n-trihalomethylthio, organophosphorus,

pyrimidine, and pyrimidinyl carbinol. Representative

chemical structures of these fungicides are shown

in Fig. 1. The main physical chemical properties of

these compounds together with their chemical names

and molecular formulas are presented in Table 1.

A wide variation of physicochemical properties,

according to the different chemical structures of

fungicides, can be observed; e.g., water solubility

varies from high values corresponding to very soluble

compounds such as propamocarb (867 g/L) to the very

low values of practically insoluble compounds like

ziram (0.03mg/L).