The liquid elicitor of chitin and chitosan and micronutrient trace elements of the present invention involves induced systemic resistance (ISR)/innate immunity responses within plants. Dilute solutions are applied to propagules (fractions of microgram per seed and/or plant), which causes natural biotic defense responses by seedlings and/or plants. The application may be as seed coating, irrigation water, and/or foliar spray, wherein propagules bioactivate systemic disease defenses against bacteria, fungi, insects and parasitic nematodes. Benefits include enhanced biocontrol of seed viability, seed germination, seedling vigor, plant growth, flowering and harvest yields for legumes, grains, potatoes, vegetables, fruits, trees, sugar beet, and grass. By nature, this homeopathic invention benefits the entire environment by being natural, biodegradable, and by promoting beneficial soil organisms. This new class of agricultural chemistry will ameliorate adverse effects of toxic pesticides through use of the present invention in integrated pest management (IPM) programs.