Abstract: Compounds of the formula: ##STR1## in which R.sub.1 is hydrogen, optionally halogenated alkyl, optionally halogenated cycloalkyl, optionally halogenated alkenyl, optionally halogenated aralkenyl or aryloxyalkenyl mono or bicyclic aryl (optionally substituted by halogen, alkyl, trifluoromethyl, nitro, cyano, amino, hydroxyl, alkoxy, aminosulphonyl or alkylcarbonyloxy), or monocyclic or bicyclic heterocyclic of 5-11 chain members and having one or two hetero-atoms (optionally substituted), and R.sub.2 is a carboxylic acid group or a salt or ester thereof, is found to have plant growth regulating activity.

Abstract: Plant growth-regulating compounds of the formula ##STR1## wherein X and Y are separately oxygen, sulfur, N-B where B is hydrogen, lower alkyl, or acyl; R and R' are separately lower alkyl, acyl, amido, or form a cycle with ##STR2## corresponding to the formula ##STR3## in which R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are separately hydrogen, lower alkyl, halogen-substituted lower alkyl, NO.sub.

Abstract: The invention pertains to certain oxadiazolinones of the formula: ##STR1## in which R represents an alkyl radical containing 1 to 4 carbon atoms and R.sub.1 represents an alkyl radical containing 2 to 4 carbon atoms, an alkoxy radical of which the alkyl part contains 1 to 4 carbon atoms, an alkylthio radical of which the alkyl part contains 1 to 4 carbon atoms, or trifluoromethyl, and to their preparation and the compositions in which they are present, which compounds and compositions have utility as nematocides, acaricides and insecticides.

Abstract: Aluminum ethyl phosphite, useful as a plant fungicide, is made in an industrial process in high yield and good quality by reacting an excess of a ternary mixture of diethyl phosphite, monoethyl phosphite and phosphoric acid, with alumina at 20-200.degree. C. under subatmospheric pressure, while eliminating water formed during the reaction.

Abstract: Insecticide compositions suitable for the treatment of soil. They contain 0,0-diisopropyl-0-p.nitrophenol thionophosphate as active material.Compositions suitable for controlling animal parasites in agriculture or market-gardening.

Abstract: Fungicidal compositions are disclosed which contain as active material at least one compound of the formula ##STR1## IN WHICH EACH OF R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 may be identical or different and represent hydrogen, alkyl or halogenated alkyl containing 1 to 5, and preferably 1 to 3 carbon atoms,M represents hydrogen, a metal, an ammonium radical, an alkyl-ammonium radical or an alkanol-ammonium radical, and n is a whole number equal to the valency of M.

Abstract: Compositions and methods for their use are described for controlling parasitic fungi in and on plants containing, as active material, at least one compound corresponding to the formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6, which may be the same or different, represent hydrogen; halogen; nitro; alkyl, halo-alkyl or alkoxy carbonyl radical containing from 1 to 5 carbon atoms, andn = 0 or 1.The compositions are topically and systemically active and are applied to the susceptible plants, seeds, soil or its transportation or handling means and may be associated with an agricultural vehicle which facilitates its application. Compositions may also contain other agriculturally acceptable components including insecticides and other fungicides.

Abstract: Plant growth-regulating compounds of the formula ##STR1## wherein X and Y are separately oxygen, sulfur, N--B where B is hydrogen, lower alkyl, or acyl; R and R' are separately lower alkyl, acyl, amido, or form a cycle with ##STR2## corresponding to the formula ##STR3## in which R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are separately hydrogen, lower alkyl, halogen-substituted lower alkyl, NO.sub.

Abstract: Fungicidal compositions are disclosed which contain as active material at least one compound of the formula ##STR1## AND ##STR2## IN WHICH EACH OF R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 may be identical or different and represent hydrogen, alkyl or halogenated alkyl containing 1 to 5, and preferably 1 to 3 carbon atoms, M represents hydrogen, a metal, an ammonium radical, an ammonium radical or an alkanol-ammonium radical, and n is a whole number equal to the valency of M.

Abstract: Organophosphorus compounds of the formula ##STR1## wherein R is alkyl of 1-4 carbons, R.sub.1 is hydrogen, halogen, nitro, trifluoromethyl, or an alkyl, alkoxy or alkylthio radical of 1-4 carbons, and X and Y are sulfur or oxygen. The compounds are useful as insecticides and acaricides.

Abstract: A method of treating and protecting plants from fungal infections by topical and systemic application with hypophosphites is described. The hypophosphites are selected from the group consisting of hypophosphorous acid (H.sub.3 PO.sub.2) and its salts with monovalent, and multivalent inorganic ions.

Abstract: Fungicidal compositions containing as the active ingredient at least one compound of the formula, (RN).sub.6 P.sub.4, wherein R is an alkyl group containing 1 to 4 carbon atoms are disclosed, as well as a method of controlling fungus diseases of plants by applying such compositions.

Abstract: A composition for selective weed control in vineyards and orchards containing as active material at least one of the following compounds: ##STR1##