This product is derived from the secondary metabolites of actinomycetes, which are isolated from the bottom sediment of the ocean. The metabolites contain the new structure of polyketones, which increase the expression of plant protection proteins by activating multiple signaling pathways in plant cells, strengthen the self-protection ability of plant cells, and prevent the replication of viruses.Thus, it can inhibit the expansion of the virus in the plant body, and has significant biological activity in inhibiting the plant virus, and has no cross-resistance with the traditional anti-plant virus products, and the effect is more prominent.

D19 metabolites have a unique crop growth mechanism, which can increase the expression of endogenous growth hormone in crops, promote crop growth, and effectively alleviate the problems of plant dwarfing, leaf shrinkingand mottled caused by plant viruses.

At present, the D19 products have obtained two national invention patents.