Dinitroanilines for control of soil-borne phytopathogens

A method of reducing the adverse effects of soil-borne phytophthora phytopathogens which comprises applying to soil infested with such phytopathogens a fungicidally-effective amount of a compound of the formula ##STR44## wherein X' is N(R.sup.31).sub.2, N(R.sup.33)CH.sub.2 Het', N.dbd.CHN(CH.sub.3).sub.2, N.dbd.C(R.sup.34)OR.sup.35, or N.dbd.CHOR.sup.36 ;

• R.sup.29 is H, C.sub.3 -C.sub.4 alkenyl or C.sub.1 -C.sub.4 alkyl;
• when R.sup.29 is H, R.sup.30 is C.sub.3 -C.sub.7 secondary alkyl;
• when R.sup.29 is not H, R.sup.30 is C.sub.1 -C.sub.5 alkyl, cyclopropylmethyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.3 -C.sub.4 alkenyl, halo C.sub.2 -C.sub.3 alkyl or halo C.sub.3 -C.sub.4 alkenyl;
• one of R.sup.31 is H or CH.sub.3 and the other is H, SCC1.sub.3, CH.sub.3, phenylthio, OH, C.sub.1 -C.sub.4 alkoxy or NH.sub.2 ;
• Het' is 2,5-dimethylpyrrolidino, piperidino, morpholino, C.sub.1 -C.sub.2 alkylpiperidino, hexahydroazepino, 2,2-dimethylaziridino, or C.sub.1 -C.sub.2 alkylpiperazino;
• R.sup.33 is H or methyl;
• R.sup.34 is C.sub.1 -C.sub.2 alkyl or phenyl;
• R.sup.35 is C.sub.1 -C.sub.4 alkyl;
• and
• R.sup.36 is C.sub.1 -C.sub.2 alkyl.