Abstract: The present invention relates to a new agricultural composition and a method for protecting, enhancing the resistance of plants to infections by plant pathogens and increasing abiotic stress tolerance against cold, salinity and drought. The composition comprises a formulated mixture of resistance elicitors stimulating a number of signal transduction pathways within the plant. The formulated mixture is acting to stimulate a number of such signal transduction pathways thereby maximising the plants' potential resistance-related response to infection. The composition gives a stronger, more sustainable, and broader range of pathogen control than an elicitor preparation based upon a single active ingredient. The active ingredients consist of chitosan (C), &ohgr;-fatty acids (O), phosphate (P) and seaweed-derived extracts (S) (COPS). The composition can be applied to the plants by spraying, via fertigation systems or by coating seeds and can be applied to the leaves of the plants or to the roots.