Abstract: There are described triazine derivatives of the formula I ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 independently of one another are each C.sub.1 -C.sub.5 -alkyl which is unsubstituted or monosubstituted by C.sub.3 -C.sub.6 -cycloalkyl, or mono- or polysubstituted by halogen, or is C.sub.3 -C.sub.6 - cycloalkyl which is unsubstituted or mono- or polysubstituted by halogen, or one of the substituents R.sub.1, R.sub.2 and R.sub.3 is also halogen or --NR.sub.4 R.sub.5, in which R.sub.4 is hydrogen or C.sub.1 -C.sub.5 -alkyl and R.sub.5 is hydrogen, C.sub.1 -C.sub.5 -alkyl, monochloroacetyl or dichloroacetyl. The triazine derivatives are used for the protection of maize and sorghum plants against the harmful effects of herbicidal chloroacetanilides and chloroacetamides.

Abstract: The invention relates to thiocarbamoylalkoxyphenylureas of the general formula ##STR1## wherein X is hydrogen, halogen, C.sub.1 -C.sub.2 haloalkoxy or C.sub.1 -C.sub.2 haloalkyl,Y is a thiocarbamoylalkyl group of the formula ##STR2## n is 0, 1 or 2, R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.2 -C.sub.4 alkynyl or C.sub.1 -C.sub.4 alkoxy,R.sub.2 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 alkenyl,R.sub.3, R.sub.4 and R.sub.6, each independently or the other, are hydrogen or C.sub.1 -C.sub.4 alkyl,R.sub.5 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or C.sub.2 -C.sub.5 alkoxyalkyl,R.sub.7 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.2 -C.sub.4 alkynyl, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.2 alkylphenyl, andR.sub.8 is hydrogen or C.sub.1 -C.sub.4 alkyl, while R.sub.1 and R.sub.2 or R.sub.7 and R.sub.

Abstract: A sea-water algicidal composition containing a triazine of the group comprising 2-methylthio-4-cyclopropylamino-6-(.alpha.,.beta.-dimethylpropylamino)-s-t riazine (I); 2-methylthio-4-cyclopropylamino-6-t-butylamino-s-triazine (II); and 2-methylthio-4-ethylamino-6-(.alpha.,.beta.-dimethylpropylamino)-s-triazin e.

Abstract: A sea-water algicidal composition containing a triazine of the group comprising 2-methylthio-4-cyclopropylamino-6-(.alpha.,.beta.-dimethylpropylamino)-s-t riazine (I); 2-methylthio-4-cyclopropylamino-6-t-butylamino-s-triazine (II); and 2-methylthio-4-ethylamino-6-(.alpha.,.beta.-dimethylpropylamino)-s-triazin e.

Abstract: 2-Cyclopropylamino-4,6-diamino-s-triazine and acid addition salts thereof for combatting developmental stages of insects.

Abstract: 2-Cyclopropylamino-4-formylamino-6-amino-s-triazines of the formula ##STR1## wherein R.sub.1 represents hydrogen, C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by lower alkoxy, or represents C.sub.3 -C.sub.4 -alkenyl, C.sub.3 -C.sub.4 -alkynyl, cyclopropyl, hydroxy, methoxy or ethoxy,R.sub.2 represents hydrogen, methyl or ethyl, orR.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached represent a 5- or 6-membered heterocyclic ring which can contain a further nitrogen atom or an oxygen atom, andR.sub.3 represents hydrogen or methyl,And the acid addition salts thereof for combatting developmental stages of insects.

Abstract: 2-Cyclopropylamino-4-formamidino-6-amino-s-triazine of the formula ##STR1## wherein R.sub.1 represents hydrogen, C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by lower alkoxy; or represents C.sub.3 -C.sub.4 -alkenyl, C.sub.3 -C.sub.4 -alkynyl, cyclopropyl, hydroxyl, methoxy or ethoxy,R.sub.2 represents hydrogen methyl or ethyl, orR.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached represent a 5- or 6-membered heterocyclic ring which can contain a further nitrogen atom or an oxygen atom,R.sub.3 represents methyl or ethyl,R.sub.4 represents methyl or ethyl, andR.sub.5 represents hydrogen or methyl for combatting developmental stages of insects.

Abstract: This invention relates to new pyrimidine derivatives with herbicidal activity corresponding to formula I ##STR1## wherein X is halogen, lower alkoxy or lower alkylthio Y is hydrogen or halogen and ##STR2## are aliphatic amino radicals, one or both of which contain the cyclopropyl ring. A process for their manufacture is given. Herbicidal compositions which contain these new pyrimidine derivatives as active component and their use for the post-emergent total or selective combating of weeds are also disclosed.

Abstract: This invention discloses new triazine derivatives, to herbicidal compositions containing them and to a method for selectively controlling weeds in cultivated crops with them.The triazine derivatives correspond to the formula I ##STR1## wherein R.sub.1 represents hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.4 -C.sub.7 -cycloalkylalkyl, C.sub.2 -C.sub.6 -alkoxyalkyl, C.sub.2 -C.sub.6 -cyanoalkyl, C.sub.3 -C.sub.4 -alkenyl or C.sub.3 -C.sub.4 -alkynyl,R.sub.2 represents hydrogen or C.sub.1 -C.sub.6 -alkyl,R.sub.3 represents hydrogen or C.sub.1 -C.sub.6 -alkyl,R.sub.4 represents C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.2 -C.sub.6 -alkoxyalkyl, C.sub.2 -C.sub.6 -cyanoalkyl or C.sub.1 -C.sub.6 -halogenoalkyl,R.sub.5 represents methoxy, ethoxy, methylthio, ethylthio or azido (N.sub.3), andY and Z each independently represent sulphur or oxygen.

Abstract: Insects of the families Musca, Aedes and Lucilia are combatted by application thereto of s-triazine derivatives of the formula ##STR1## wherein R.sub.2 is hydrogen, C.sub.1 -C.sub.3 alkyl, allyl or propargyl; R.sub.3 is hydrogen, methyl or ethyl; and R.sub.4 is hydrogen, C.sub.1 -C.sub.3 alkyl or propargyl.