Spray Oil and Method of Use Therefor for Controlling Turfgrass Pests

a technology of spray oil and pests, which is applied in the field of spray oil, can solve the problems of difficult preparation of formulations with suitable shelf-life for storage, destroying emulsions, and unstable thermodynamics of emulsions, and achieves the effect of effective control of turfgrass pests
US20050261379A1Inactive Publication Date: 2005-11-24PETRO-CANADA
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
PETRO-CANADA
Publication Date
2005-11-24
Estimated Expiration
Not applicable · inactive patent
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Abstract

A paraffinic spray oil and a method of using the spray oil for controlling turfgrass pests is disclosed. The spray oil comprises paraffinic oil and a quick break emulsifier, which is formulated as an oil-in-water (O / W) emulsion for use. The paraffinic oil and emulsifier are present in a weight ratio ranging from about 95:5 to about 99.95:0.05, and preferably from about 98.5:1.5 to about 99.9:0.1. When applied to turfgrass, the O / W emulsion quickly releases the oil phase upon application to the turfgrass to contact pests thereon. When provided at sufficient paraffinic oil dosages, generally at least about 0.5 gal oil / acre and preferably in the range of about 0.5 gal / acre to about 60 gal / acre, the spray oil is effective in controlling a variety of turfgrass pests, particularly insect and fungal pests, with little or no phytotoxic effects. Further, use of the spray oil as indicated for controlling turfgrass pests also enhances the growth of turfgrass.
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Description

FIELD OF THE INVENTION

[0001] The invention relates to spray oils, and in particular to paraffinic spray oils and their method of use for controlling turfgrass pests such as harmful insects and fungi. BACKGROUND OF THE INVENTION

[0002] In the field of agriculture and horticulture, it is well known to use spray oils in the control plant pests such as harmful insects, fungi, and microorganisms such as bacteria and viruses. The base for such spray oils are generally made of naturally occurring oils such as refined petroleum products, e.g., paraffinic oils, or oils extracted from plants, vegetables or animals.

[0003] Spray oils are often formulated as an oil-in-water (O / W) emulsion which is periodically applied directly to plants. An emulsion is a dispersed system containing at least two normally immiscible phases, one being dispersed as droplets in the other. Emulsions are thermodynamically unstable due to excess free energy associated with the surface of the dispersed droplets such th...

Claims

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