Abstract: The invention relates to novel active compound combinations having very good insecticidal and acaricidal properties and containing (a) cyclic ketoenols having the formula in which the groups W, X, Y, Z, A, B, D, AND G have the meanings given in the disclosure, and (b) the active compounds (1) to (29) listed in the disclosure.

Abstract: A method is provided for modulating transpiration in an organism that is capable of photosynthesis, where the method includes contacting the organism with a composition including an effective amount of an oxygen antagonist. Also provided is an apparatus for modulating transpiration in an organism that is capable of photosynthesis.

Abstract: A stable aqueous concentrate comprising a polymeric biguanide, a chelating agent and a water-miscible organic solvent for controlling the growth of algae, fungi and pathogenic organisms in water.

Abstract: The present invention relates to a method of inhibiting the growth of killing algae, bacteria, yeast and/or fungi in a recirculating water system which comprises adding to the water a polymeric biguanide and an adjuvant of the Formula (1) or a salt thereof: wherein: R1 is an optionally substituted C8 to C12 or C18 to C22 alkyl group; and R2 and R3 each independently is H or optionally substituted C1-4-alkyl.

Abstract: The present invention relates to a method of inhibiting the growth of killing algae, bacteria, yeast and/or fungi in a recirculating water system which comprises adding to the water a polymeric biguanide and an adjuvant of the Formula (1) or a salt thereof: wherein: R1 is an optionally substituted C8 to C12 or C18 to C22 alkyl group; and R2 and R3 each independently is H or optionally substituted C1-4-alkyl.

Abstract: The present invention provides compositions and methods for controlling the growth of algae, especially nuisance algae, in recirculating water systems. The water systems encompass industrial and recreational applications. The compounds for use in the compositions and methods of the invention possess anti-algal activity and are selected from a herbicide and an agricultural fungicide or a combination thereof.

Abstract: This invention is directed to a broad spectrum antimicrobial composition which comprises a mixture of an iodopropynyl compound in combination with 2-(methoxycarbonylamino)benzimidazole and, where desirable, an algicide said mixture provided in an amount sufficient to protect a substrate from attack by one or more organisms. The composition can be used broadly in industrial systems and more particularly with substrates such as paints, coatings, stucco, concrete, stone, cementaceous surfaces, wood, caulking, sealants, textiles, leather, wood, preservatives, metal working fluids, drilling muds, clay slurries, glazes, optical brightness, carpet backing, pigments and as a preservative for other aqueous and wet state products, and the like.

Abstract: The present invention relates to an algicide combination of triazine derivatives and N,N-dialkylurea derivatives and to its use for protecting industrial products against infestation and destruction by photoautotrope microorganisms.

Abstract: Compositions comprising an ionene polymer and a pyrithione salt are disclosed which are synergistically effective compared to the respective components alone in controlling the growth of microorganisms in or on a material or medium. Methods to control the growth of microorganisms and prevent spoilage caused by microorganisms with the use of the compositions of the present invention are also disclosed.

Abstract: An anti-fouling composition comprising a carrier, and a binder, the improvement which comprises an effective amount of at least one insecticide. The composition is applied to the surfaces of articles which come into contact with seawater or brackish water, especially wood. Other conventional anti-fouling agents may also be present.

Abstract: A method for controlling algae and marine fouling organisms is described. The method employs N-acetonylbenzamides compounds provided in an effective amount to kill or inhibit the growth of the algae or fouling organisms.

Abstract: The present invention relates to a method to inhibit bacteria from adhering to a submergible surface. The method contacts the submergible surface with an effective amount of at least one amide to inhibit bacterial adhesion to the submergible surface. The present invention also relates to a method for controlling biofouling of an aqueous system. This method adds an effective amount of at least one amide to inhibit bacteria from adhering to a submerged surface within the aqueous system. This method effectively controls biofouling without substantially killing the bacteria. The amide used in the method of the invention has the following formula: ##STR1## The present invention also relates to compositions containing amides and useable in the above methods. The compositions comprise at least one amide in an amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.

Abstract: Methods for inhibiting microbial growth in aqueous systems by the use of synergistic mixtures comprising poly(hexamethylammonium) chloride and at least one compound selected from the group consisting of poly (iminoimidocarbonyliminoimidocarbonyliminohexamethylene hydrochloride ("PHMB") , dodecylguanidine hydrochloride ("DGH") and poly[oxyethylene (dimethylimino) ethylene-(dimethylimino) ethylene dichloride] ("PDED"). Antimicrobial compositions comprising the synergistic mixture and a carrier are also disclosed.

Abstract: Stable, concentrated aqueous suspensions of 2,2-dibromo-3-nitrilopropionamide which contribute minimal chemical oxygen demand to systems treated therewith and methods of preparing and using said suspensions in biocidal applications have been discovered. The formulations comprise from about 3 to about 70 weight percent 2,2-dibromo-3-nitrilopropionamide suspended in about 30 to about 97 weight percent water in the presence of a suspending amount of a thixotrope that exhibits Ellis-Plastic behavior, such as xantham gum and locust bean gum, at a pH of from about 1 to about 4.

Abstract: A composition comprising a water-dispersible ionene polymer and a water-dispersible di-lower-alkyl ammonium halide polymer (for example, a polymer of dimethyl diallyl ammonium chloride) is disclosed. These polymers are present in the composition in a ratio effective to function synergistically as an algistatic or algicidal agent when an effective amount of the composition is dispersed in a body of water. Examples of suitable bodies of water are swimming pools, spas, lakes, rivers, or water in an industrial water system, such as a cooling water system. Also, a method of treating water which is susceptible to the growth of algae is disclosed. The method is carried out by incorporating in the water an at least algistatic amount of the composition.

Abstract: A method for inhibiting or preventing emergence and growth of algae, comprising use of a germanium compound and a herbicide, and an antialgal composition comprising a germanium compound and a herbicide. The method of the present invention inhibits and prevents emergence and growth of algae, and can be used safely with little influence on aquatic animals. The method is advantageously used for a fish tank in which fish for appreciation is kept, so as to keep good appearance of the tank and to reduce burden of cleaning the tank by preventing emergence and growth of attached algae. Particularly, the composition for artificial seawater of the present invention shows no toxicity to marine animals to be raised in the artificial seawater prepared using the composition of the invention, and can inhibit and prevent emergence of algae. Therefore, the composition of the invention can be beneficially used for raising, culture, study, and the like of marine animals.

Abstract: Methods for inhibiting microbial growth in aqueous systems by the use of synergistic mixtures comprising poly(hexamethylammonium) chloride and at least one compound selected from the group consisting of poly(iminoimidocarbonyliminoimidocarbonyliminohexamethylene hydrochloride ("PHMB"), dodecylguanidine hydrochloride ("DGH") and poly[oxyethylene (dimethylimino) ethylene-(dimethylimino) ethylene dichloride] ("PDED"). Antimicrobial compositions comprising the synergistic mixture and a carrier are also disclosed.

Abstract: The growth of algae, fungi and pathogenic organisms in commercial and recreational waters, such as cooling towers, swimming pools and spas, may be controlled by adding to the water a primary sanitizing agent, preferably poly(hexamethylene biguanide) ("PHMB"), and a potentiating adjuvant comprising a calcium ion-chelating agent, preferably ethylenediamine tetraacetic acid ("EDTA"), in amounts such that the adjuvant renders the composition algicidal and fungicidal in water. The water may be further treated with a peroxy salt as a backup agent, preferably sodium perborate, or the calcium ion-chelating agent and peroxy salt may be combined as a shock treatment to water being treated with the primary sanitizing agent.

Abstract: Compounds of the formula ##STR1## wherein A is selected from the group consisting of (1) phenyl, (2) naphthyl, (3) phenyl substituted with one or more halo, cyano, (C.sub.1 -C.sub.4)alkyl, nitro, (C.sub.1 -C.sub.4)haloalkyl, and (C.sub.1 -C.sub.4)thioalkyl, (4) naphthyl substituted with one or more halo, cyano, (C.sub.1 -C.sub.4) alkyl, nitro, (C.sub.1 -C.sub.4)haloalkyl, and (C.sub.1 -C.sub.4)thioalkyl, (5) thiophene, (6) furan, (7) thiophene substituted with one or more substituents selected from halo and nitro, and (8) furan substituted with one or more substituents selected from halo and nitro;R is selected from the group consisting of hydrogen, (C.sub.1 -C.sub.4)alkyl and substituted or unsubstituted phenyl wherein the substituents are selected from one or more halo, cyano, (C.sub.1 -C.sub.4)alkyl, nitro, (C.sub.1 -C.sub.4) haloalkyl, and (C.sub.1 -C.sub.4)thioalkyl andR.sup.1 is selected from the group consisting of (C.sub.1 -C.sub.