Abstract: Compounds of the formula: ##STR1## wherein X is independently halogen, lower alkyl of 1 to 6 carbon atoms, lower alkoxy of 1 to 6 carbon atoms, nitro, lower alkylsulfinyl of 1 to 6 carbon atoms, lower alkylthio of 1 to 6 carbon atoms, amino or trifluoromethyl; n is 0, 1, 2 or 3; R is hydrogen, alkyl of 1 to 10 carbon atoms, cycloalkyl of 3 to 8 carbon atoms, lower alkenyl of 2 to 6 carbon atoms, or lower alkynyl of 2 to 6 carbon atoms, all optionally substituted with 1 to 3 of the same or different halogen atoms; or aryl of 6 to 12 carbon atoms; or substituted aryl substituted with 1 to 3 substituents independently selected from lower alkyl of 1 to 4 carbon atoms, lower alkoxy of 1 to 4 carbon atoms, and the group --S(O).sub.k R.sup.2 where k is 0, 1 or 2 and R.sup.2 is lower alkyl of 1 to 4 carbon atoms, nitro, cyano or halogen; and R.sup.1 is lower alkyl of 1 to 6 carbon atoms, lower cycloalkyl of 3 to 8 carbon atoms or aryl of 6 to 12 carbon atoms, provided that R and R.sup.

Abstract: Compounds of the formula: ##STR1## wherein R is aryl or aryl substituted with 1 to 3 substituents independently selected from halogen, lower alkyl of 1 to 4 carbon atoms, lower alkoxy of 1 to 4 carbon atoms, lower alkylthio of 1 to 4 carbon atoms, nitro, cyano, --S(O).sub.n R.sup.2 wherein n is 1 or 2 and R.sup.2 is lower alkyl of 1 to 4 carbon atoms; or alkyl, cycloalkyl, lower alkenyl or lower alkynyl, all optionally substituted with 1 to 3 halogen atoms; and R.sup.1 is lower alkyl, trialkylsilylmethylene, aryldialkylsilylmethylene, aryl; aralkyl, or substituted aryl or aralkyl are fungicidal.

Abstract: Compounds of the formula: ##STR1## wherein X is independently halogen, lower alkyl of 1 to 6 carbon atoms, lower alkoxy of 1 to 6 carbon atoms, nitro, the group R.sup.1 --S(O).sub.m -- wherein R.sup.1 is lower alkyl of 1 to 6 carbon atoms and m is 0, 1 or 2, amino, or trifluoromethyl; n is 0, 1, 2 or 3; and R is alkyl of 1 to 10 carbon atoms; cycloalkyl of 3 to 8 carbon atoms; lower alkenyl of 2 to 6 carbon atoms; or lower alkynyl of 2 to 6 carbon atoms, all optionally substituted with 1 to 3 of the same or different halogen atoms, or aryl of 6 to 12 carbon atoms or substituted aryl substituted with 1 to 3 groups independently selected from lower alkyl of 1 to 4 carbon atoms, lower alkoxy of 1 to 4 carbon atoms, lower alkylthio of 1 to 4 carbon atoms, oxidized alkylthio, nitro, cyano, or halogen are fungicidal.

Abstract: Compounds of the formula: ##STR1## wherein R is aryl of 6 to 10 carbon atoms; substituted aryl substituted with 1 to 5 substituents selected from halogen, nitro, lower alkyl of 1 to 6 carbon atoms, lower alkoxy of 1 to 6 carbon atoms, lower alkylthio of 1 to 6 carbon atoms, trihalomethyl, or ##STR2## wherein R.sup.2 is lower alkyl of 1 to 4 carbon atoms; alkyl of 1 to 8 carbon atoms; cycloalkyl of 3 to 8 carbon atoms; 1-alkylcycloalkyl of 4 to 9 carbon atoms; 1-alkylthio-1,1-dialkylmethyl of 4 to 7 carbon atoms; 1-alkoxy-1,1-dialkylmethyl of 4 to 7 carbon atoms; furyl; thienyl; or pyridyl; and R.sup.1 is lower alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 8 carbon atoms, aryl of 6 to 10 carbon atoms, substituted aryl of 6 to 10 carbon atoms substituted with 1 to 5 lower alkyl groups of 1 to 6 carbon atoms or aralkyl of 7 to 12 carbon atoms are fungicidal.

Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently lower alkyl having from 1 to 4 carbon atoms; and R.sup.3 is lower alkyl having from 1 to 6 carbon atoms, lower cycloalkyl having from 3 to 6 carbon atoms optionally substituted with methyl or ethyl, lower alkoxyalkyl having up to a total of 8 carbon atoms or lower alkylthioalkyl having up to a total of 8 carbon atoms are insecticidal.

Abstract: Compounds of the formula: ##STR1## wherein X is oxygen or sulfur; R.sup.1 and R.sup.2 are independently lower alkyl having from 1 to 4 carbon atoms; and R.sup.3 is lower alkyl having from 1 to 6 carbon atoms, lower cycloalkyl having from 3 to 6 carbon atoms optionally substituted with methyl or ethyl, lower alkoxyalkyl having up to a total of 8 carbon atoms or lower alkylthioalkyl having up to a total of 8 carbon atoms are insecticidal.

Abstract: Compounds of the formula ##STR1## wherein R is hydrogen, lower alkyl or lower alkoxy, R.sup.1 and R.sup.2 are independently lower alkyl and Y is either oxygen or sulfur possess insecticidal activity.

Abstract: 2-Thiohaloalkenyl-4-dialkoxyphosphino-thioyloxy-6-alkyl-1,3-pyrimidines represented by the formula: ##STR1## wherein R and R.sup.1 are independently lower alkyl; R.sup.2 is hydrogen, lower alkyl or lower alkoxy; X, Y and Z are independently halogen or hydrogen with at least one of X, Y and Z being halogen; possess fungicidal and insecticidal activity.

Abstract: N-tetrachloroethylthio-substituted halomethanesulfonamides of the formula ##STR1## wherein R is alkyl, cycloalkyl, acyl, X is fluoro, chloro, bromo or iodo and R' is tetrachloroethyl, are useful as algicides.

Abstract: N-trichlorovinylthio-substituted halomethanesulfonamides of the formula ##STR1## wherein R is alkyl, cycloalkyl, aryl, X is fluoro, chloro, bromo or iodo and R' is trichlorovinyl, are fungicides and algicides.

Abstract: Compounds of the formula ##STR1## wherein X is halo or C.sub.1 -C.sub.4 alkyl, n=1, 2 or 3 and R and R' are hydrogen or C.sub.1 -C.sub.6 alkyl have herbicidal and plant-growth regulating activity.

Abstract: Novel sulfonamides of the formula ##STR1## wherein R.sup.1 is alkyl, cycloalkyl or aryl; R.sup.2 is haloalkyl or halovinyl; and X is hydrogen or halogen and at least one X is halogen, are useful for the prevention or cure of fungal infections.

Abstract: Thiadiazin-5-one compounds of the formula ##STR1## wherein R.sup.1 is alkyl and R.sup.2 is alkyl, alkenyl, cycloalkyl or aryl are prepared by reacting a thiosemicarbazide and an alkyl alpha-halothioacetate. Addition of a dialkylhalothiophosphate to the thiadiazin-5-one compounds produces useful thiadiazine insecticides.

Abstract: Thiadiazine compounds of the formula (I) ##STR1## wherein R.sup.1 is alkyl, R.sup.2 is alkyl, cycloalkyl, alkenyl or aryl, R.sup.3 is alkyl and R.sup.4 is alkyl, are useful as insecticides. The thiadiazine compounds are prepared by the addition of a dialkylhalothiophosphate to a tetrahydro-6H-1,3,4-thiadiazin-5-one.

Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is alkyl, alkenyl, cycloalkyl or aryl; R.sup.2 is alkyl, haloalkyl, alkenyl or aryl; and R.sup.3, R.sup.4 and R.sup.5 individually are alkyl or aryl, possess pesticidal activity.

Abstract: Compounds of the formula ##STR1## wherein R is, for example, alkyl, alkenyl, alkynyl, cycloalkyl, phenyl or substituted phenyl, R.sup.1 is halo-substituted alkyl or halo-substituted alkenyl and R.sup.2 is hydrocarbyl, possess fungicidal activity.

Abstract: Compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 individually are hydrogen, halo, alkyl or nitro; one of X.sup.1 or X.sup.2 is hydrogen, halo, alkyl or nitro and the other X.sup.1 or X.sup.2 is --SO.sub.2 N(R.sup.3) (SnR.sup.4 R.sup.5 R.sup.6) wherein R.sup.3 is hydrogen, alkyl or aryl and R.sup.4, R.sup.5 and R.sup.6 individually are alkyl or aryl, possess pesticidal activity.

Abstract: Novel thiophenes of the formula ##STR1## wherein R.sup.1 is alkyl; R.sup.2 is alkyl; one X is hydrogen, fluoro, chloro or bromo and the other X is --SC.sub.2 N(R.sup.3) (R.sup.4) wherein R.sup.3 is alkyl or aryl and R.sup.4 is hydrogen or haloalkylthio, are useful for the prevention or cure of fungal infections.

Abstract: Mite eggs are killed by applying thereto N-tetrachloroethylthio-substituted halomethanesulfonamides of the formula ##STR1## wherein R is alkyl, cycloalkyl, aryl, X is fluoro, chloro, bromo or iodo and R' is tetrachloroethyl.

Abstract: Novel thiophenes of the formula ##STR1## wherein X and Z individually are nitro, fluoro, chloro or bromo, Y is hydrogen, nitro, fluoro, chloro or bromo, R.sup.1 is alkyl or aryl and R.sup.2 is hydrogen or haloalkylthio, are useful for the prevention or cure of fungal infections.