Abstract: Spray oil compositions capable of defoliating and/or desiccating the foliage of leguminous plants so as to facilitate the harvesting thereof are disclosed. The parameter of properties constituent oils must have to provide these effects is given.

Abstract: The phytotoxicity of conventional agricultural spray oils is reduced by the incorporation therein of between 0.10 and 0.25 weight/volume percent thereof of at least one zinc dialkyldithiophosphate wherein the alkyl group ranges from C.sub.3 to C.sub.8. The additive also provides zinc and phosphorus to the plants treated with such oils.

Abstract: Disclosed are hydrolytically stable spray oil containing plant assimilating boron compounds for improving plant growth. Suitable boron compounds include the esters of boric, boronic and borinic acids including the cyclic esters, the alkanolamine esters, the non-alpha hydrogen and branched alkyl esters and amine-borate adducts. The spray oils are formulated to contain from 0.01 to 2.0 weight/volume percent of boron.

Abstract: The phytotoxicity of petroleum spray oils can be eliminated or reduced by the addition thereto of from 0.01 to 8% weight percent of an antioxidant of the inhibitor or peroxide decomposing type, which is non-phytotoxic, non-carcinogenic and substantially unaffected in its antioxidant properties by sunlight. These inhibitors prevent the auto-oxidation of the oils.

Abstract: The invention discloses as new fungicidal compositions of matter dispersed micelles of overbased copper naphthenates in non-phytotoxic spray oils prepared metathetically. Each micelle contains a combined alkaline earth metal to reduce phytotoxicity of the dispersions. The alkaline earth metal may be present partly as naphthenate in the outer protective layer of the dispersed micelles. The inner core of the micelle is mainly copper hydroxide but some alkaline earth metal hydroxide may also be present. The mole percent of alkaline earth metal to copper ranges from about 1 to about 7 and the preferred metal is calcium. The micelles form clear fungicidal dispersions in spray oils.