Harpin Proteins are produced in nature by certain bacterial plant pathogens. Many of the plants that those pathogens attack have developed receptors on their seeds, roots, and foliage to detect the presence of Harpin Proteins. This “early warning system” triggers signals throughout the plants to activate certain defensive and growth responses. These vigorous responses to the threat of disease help the plants survive the stresses and other threats the diseases present.
Plant Health Care “Harp-N-Tek” is a proprietary technology platform for the production of certain Harpin Proteins that are formulated into products that contain no pathogens. The plants can’t tell the difference. When Harp-N-Tek seed treatments or foliar Plant Health Regulators are applied, the plants “panic” and turn on stress-defense and growth systems. Research, field trials, and producer experience show that the result is improved crop vigor, stamina, nutrient uptake, and reproductive growth. Harp-N-Tek products also reduce nematode egg and juvenile populations among roots. Combined, all these outcomes provide producers with more yield, quality, and in some crops fewer culls and longer shelf life.
Harp-N-Tek products have been extensively tested in greenhouse, replicated and commercial trials with many different crops and in major growing areas throughout the world. The Harpin Protein response among plants is so prevalent and extensive that the resulting beneficial activity has been documented across a broad spectrum of crops, including:
- Tree Fruit and Vines
- Turf and Ornamental
- Field Crops
- Specialty Crops
Use recommendations are specific to crop groups since timing of application and duration of effects depend on crop physiology and growth stage.
The likely Harpin Protein receptors that enable plants to recognize Harpin and initiate plant responses have been identified and are present in all crop species that have been examined, suggesting that all crops may have the potential to respond to Harpin Protein.