Disclosed are selected trichloroacetamidines having the formula ##STR1## wherein R is selected from the group consisting of ##STR2## wherein n is 2, 3 or 4 and R.sup.1 is a lower alkyl group having 1 to 4 carbon atoms; and R.sup.2 is selected from the group consisting of H, SCCl.sub.3 and COCCl.sub.3. These compounds are disclosed to be agricultural fungicides.