http://www.gardeningthings.com/orga...y-reg-plant-health-promoter-2oz-package-p-183
Supposed to boost plants immune system, prevent disease, increase yield, etc.
"How It Works
Plant Health Care's Harp-N-Tek Harpin Protein is a naturally occuring protein which fools receptors in plants which are normally used to alert them to the presence of disease. EMPLOY® H&T Harp-N-Tek Harpin Protein contains no pathogens, but the plant "panics" and turns on its self-defense and growth systems. This builds strong plants which can resist a broad array of viral, fungal and bacterial diseases, including some for which no effective treatment is currently available. It also enhances resistance to attacks by insects, decreasing potential for damage. Years of producer experience with Harp-N-Tek products, backed by consistent multi-year replicated and commercial field trials, have shown that Harp-N-Tek results in improved plant vigor, stamina, nutrient uptake, stress tolerance, and reproductive growth, plus reduced nematode pressure. That all adds up to more yield.
Safety
EMPLOY® H&T exhibits a high degree of environmental safety. It is applied at very low rates, has an excellent safety profile, and is rated by the EPA as having the lowest hazard potential. Once the plant's defense activity has been triggered, Harpin Proteins quickly disintegrate in the environment, having never entered the plant and leaving no detectable Harpin Protein residue on harvested plants. Edible crops can be sprayed right up to the day of harvest. The original Messenger product was hailed as a major scientific breakthrough by the USDA and received the EPA's prestigious 2001 Presidential Green Chemistry Challenge Award."
Supposed to boost plants immune system, prevent disease, increase yield, etc.
"How It Works
Plant Health Care's Harp-N-Tek Harpin Protein is a naturally occuring protein which fools receptors in plants which are normally used to alert them to the presence of disease. EMPLOY® H&T Harp-N-Tek Harpin Protein contains no pathogens, but the plant "panics" and turns on its self-defense and growth systems. This builds strong plants which can resist a broad array of viral, fungal and bacterial diseases, including some for which no effective treatment is currently available. It also enhances resistance to attacks by insects, decreasing potential for damage. Years of producer experience with Harp-N-Tek products, backed by consistent multi-year replicated and commercial field trials, have shown that Harp-N-Tek results in improved plant vigor, stamina, nutrient uptake, stress tolerance, and reproductive growth, plus reduced nematode pressure. That all adds up to more yield.
Safety
EMPLOY® H&T exhibits a high degree of environmental safety. It is applied at very low rates, has an excellent safety profile, and is rated by the EPA as having the lowest hazard potential. Once the plant's defense activity has been triggered, Harpin Proteins quickly disintegrate in the environment, having never entered the plant and leaving no detectable Harpin Protein residue on harvested plants. Edible crops can be sprayed right up to the day of harvest. The original Messenger product was hailed as a major scientific breakthrough by the USDA and received the EPA's prestigious 2001 Presidential Green Chemistry Challenge Award."
