A liquid micronutirent elicitor involving a cell to cell signal transduction system within a plant which is applied to propagules (seed and / or plant) causes natural defensive responses to be produced by the seed and / or plant. This substance may exist as a seed coating, irrigation water, and / or foliar spray for a period of time so that the propagules may have enhanced disease control until the propagule develops sufficiently to fend for itself against parasitic nematodes. The benefits of incorporating the solution include increased vigor, blooms, and harvests. Crops include legumes including soybeans, as well as wheat, canola, corn, peanuts, sunflowers, peppers, tomatoes, grapes, and potatoes.