Abstract: A post-harvest treatment method for eradication of biological infestation in crops comprises the step of applying post-harvest to the crop a petroleum oil that has a density at 15.degree. C. in the range of 0.75 to 0.83 g/ml.

Abstract: A method of treating potatoes sequentially with chemically-different sprout inhibitors is disclosed. Sprouting of stored potatoes may be eliminated or minimized by a treatment with CIPC followed sometime later by a treatment with a substituted naphthalene such as 1,4-DMN. Also, an initial treatment with 1,4-DMN soon after the potatoes are harvested may be advantageous in addition to the later treatments with CIPC and 1,4-DMN.

Abstract: A composition for protecting a crop against fungal diseases which includes one or more fish oils used in association with an agriculturally acceptable diluent and, preferably, with a metal salt. Also provided is a method for protecting a crop against fungal diseases which includes applying to the seed or foliage of a crop or its locus, a fish oil in an amount sufficient to induce the local and/or systemic resistance of the crop to control the fungal disease.

Abstract: A method of inhibiting an ethylene response in a plant is disclosed herein. The method comprises applying to the plant an effective ethylene response-inhibiting amount of cyclopropene, 1.1.1. propellane, or derivatives thereof. Also disclosed are methods of inhibiting abscission in plants and methods of prolonging the life of cut flowers.

Abstract: A composition for protecting a crop against fungal diseases which includes one or more fish oils used in association with an agriculturally acceptable diluent and, preferably, with a metal salt. Also provided is a method for protecting a crop against fungal diseases which includes applying to the seed, tuber or foliage of a crop or its locus, a fish oil in an amount sufficient to induce the local and/or systemic resistance of the crop to control the fungal disease. Preferably, the fish oil is used to protect a potato or tomato crop against infection by the late blight fungus Phytophthora infestans.

Abstract: An herbal treatment for plant growth comprising a water solution of extracts of the type withdrawn at elevated temperature from Artemesia plants and the like, applicable to the root structure of plants and as an external spray.

Abstract: An herbal treatment for plant growth comprising a water solution of extracts of the type withdrawn at elevated temperature from Artemesia plants and the like, applicable to the root structure of plants and as an external spray.

Abstract: Methods are provided for inhibition of leaf rust infections of plants, especially wheat, using inhibitors which disrupt sulfhydryl bonds of the enzymes used by the leaf rust germ tube to ingest and metabolize components of epicuticular waxes.