Abstract: This invention relates to substituted 2,4-imidazolidinediones, their method of preparation and use as broad spectrum systemic fungicides effective in controlling phytopathogenic fungi such as barley net blotch (Helminthosporium teres), bean powdery mildew (Erysiphi polygoni), grape downy mildew (Plasmorpora viticola), tomato late blight (Phytophthora infestans), and wheat stem rust (Puccinia graminis f. sp. tritici race 15 B-2.

Abstract: The 4-fluoroalkyl-4'-nitrodiphenyl ethers comprise a class of compounds that are highly effective herbicides.

Abstract: The invention relates to 1-aryl-1,4-dihydro-4-oxo-5-carboxypyridazine derivatives which are not only useful as plant growth regulators and hybridizing agents for cereal crops but possess the additional utility of having an improved margin of safety as concerns plant injury and seed quality.

Abstract: This invention relates to compounds of the formula: ##STR1## wherein R.sub.1 is an optionally substituted alkyl or alkenyl group; at least one of R.sub.2, R.sub.5 and R.sub.6 is ##STR2## wherein (1) when R.sub.2 is ##STR3## R.sub.5 is a hydrogen atom, an alkyl group or a halogen atom and R.sub.6 is a hydrogen atom or an alkyl group,(2) when R.sub.5 is ##STR4## R.sub.2 is an alkyl group and R.sub.6 is a hydrogen atom or an alkyl group,(3) when R.sub.6 is ##STR5## R.sub.2 is an optionally substituted (C.sub.1 -C.sub.6) alkyl or a (C.sub.3 -C.sub.6) alkenyl group and R.sub.5 is a hydrogen atom, a (C.sub.1 -C.sub.6) alkyl group or a halogen atom, and(4) when R.sub.2 and R.sub.6 are both independently ##STR6## R.sub.5 is a hydrogen atom or an alkyl group; Y is a hydrogen atom or an alkyl group; X is a hydrogen atom, a halogen atom, a trihalomethyl group and the like; and n is an integer from 1 to 3; or the agronomically acceptable alkali metal or acid addition salts thereof.

Abstract: This invention relates to 1-aryl-1,4-dihydro-4-oxo-3,5-dicarboxypyridazine derivatives which are not only useful as plant growth regulators and hybridizing agents for cereal grain crops but possess the additional utility of having an improved margin of safety as concerns plant injury and seed quality.

Abstract: Process for preparing DDTr-free 1,1-bis(chlorophenyl)-2,2,2-trichloroethanol (dicofol).

Abstract: This invention relates to substituted azoylmethylarylsulfides, sulfoxides and sulfones, their agronomically acceptable acid addition salts, their method of preparation and their pesticidal use, especially their use as highly active fungicides.

Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is aryl or substituted aryl,R.sup.2 is alkyl, or aryl,R.sup.3 is hydrogen, alkyl, aralkyl, or halogen, orR.sup.2 and R.sup.3 taken together are --(CH.sub.2).sub.n -- where n is 3 to 8Z is oxygen or sulfur, andY is the group Z'R.sup.4 or NR.sup.5 R.sup.6whereinZ' is oxygen or sulfur,R.sup.4 is hydrogen or an agronomically acceptable salt thereof, alkoxyalkyl, alkyl, cycloalkyl, cycloalkylalkyl, haloalkyl, phenyl or benzyl or a cationR.sup.5 and R.sup.6 are independently hydrogen or alkali or when R.sup.5 is hydrogen, R.sup.6 is hydroxy or an alkyl metal salt thereof. These compounds are active as plant growth regulators, and particularly as chemical hybridization agents.

Abstract: Compositions comprising acifluorfen or one of its agronomically acceptable salts and a citrate salt, in a weight amount greater than the acifluorfen, exhibit enhanced herbicidal activity, particularly against velvetleaf.

Abstract: Herbicidal compositions which comprise 2-chloro-.alpha.,.alpha.,.alpha.-trifluoro-p-tolyl-3-carboxy-4-nitrophenyl ether, or agronomically-acceptable salts thereof, and at least one water-soluble salt of an inorganic or organic acid have enhanced herbicidal activity when compared to similar compositions lacking the water-soluble salt.

Abstract: Compounds of the formula ##STR1## wherein X is a hydrogen atom, a halogen atom, a trihalomethyl group, an alkyl group, or a cyano group,Y is a hydrogen atom, a halogen atom, or a trihalomethyl group, andZ is a hydroxy group, an alkoxy group, and alkyl group, a halogen atom, an amino group, an alkylthio group, a cyano group, a carboxy group, a carbalkoxy group, a carboxyalkyl group, an carbalkoxyalkyl group, an alkanoyloxy group, or a carbamoyloxy group,and compositions containing these compounds exhibit herbicidal activity.

Abstract: This invention relates to novel heterocyclic fungicides which are effective in controlling a broad spectrum of phytopathogenic fungi found in the four main classes of fungi namely Phycomycetes, Ascomycetes, Fungi Imperfecti, and Basidiomycetes. Certain of these compounds are especially effective in controlling sclerotial forming fungi such as Whetzelinia sclerotiorum=(Sclerotinia sclerotiorium) and Botrytis cinerea.

Abstract: The herbicidal-4-trifluoromethyl-3'-carbon-substituted-4'-substituted diphenyl ethers comprise a class of compounds that are highly effective herbicides.

Abstract: The herbicidal 4-trifluoromethyl-3'-nitrogen-substituted-4'-substituted diphenyl ethers comprise a class of compounds that are highly effective herbicides.

Abstract: The herbicidal 4-trifluoromethyl-3'-oxygen-substituted-4'-substituted diphenyl ethers comprise a class of compounds that are highly effective herbicides.

Abstract: This invention relates to 2-hydroxyarylethyl-1,2,4-triazoles, their acid addition salts and metal salt complexes. This invention also relates to the method of preparation and use of these compounds. These compounds and salts thereof are highly active broad-spectrum systemic fungicides effective in controlling phytopathogenic fungi such as barley net blotch (Helminthosporium teres), grey mold (Botrytis fabae), bean powdery mildew (Erysiphe polygoni), grape downy mildew (Plasmopora viticola), rice blast (Piricularia oryzae), tomato late blight (Phytophthora infestans) and wheat stem rust (Puccinia graminis f. sp. tritici race 158-2).

Abstract: This invention relates to .beta.-hydroxyarylethylimidazoles, their enantiomorphs, acid addition salts and metal salt complexes. This invention also relates to the method of preparation and use of these compounds. These compounds and salts thereof are highly active broad-spectrum systemic fungicides effective in controlling phytopathgogenic fungi such as barley net blotch (Helminthosporium teres), grey mold (Botrytis cinerea), bean powdery mildew (Erysiphe polygoni), grape downy mildew (Plasmopora viticola), rice blast (Piricularia oryzae), tomato late blight (Phytophthora infestans), and wheat stem rust (Puccinia graminis f. sp. tritici race 15B-2).

Abstract: This invention relates to thiophenethyl imidazoles and triazoles and their acid addition salts. This invention also relates to their preparation and their use as broad spectrum phytopathogenic fungicides.

Abstract: This invention relates to novel heterocyclic fungicides which are effective in controlling a broad spectrum of phytopathogenic fungi found in the four main classes of fungi namely Phycomycetes, Ascomycetes, Fungi Imperfecti, and Basidiomycetes. Certain of these compounds are especially effective in controlling sclerotial forming fungi such as Whetzelinia sclerotiorum=(Sclerotinia sclerotiorium) and Botrytis cinerea.

Abstract: This invention relates to N-substituted alkynyl anilines, methods for their preparation and their use as systemic eradicant phytopathogenic fungicides which are useful in controlling Oomycetes.