PINEYE® Emulsion: A new green antitranspirant adjuvant and its effect on plant diseases control

On the agricultural adjuvant market, the plant antitranspirants were identified as metabolic type, film-forming type and reflecting type. PINEYE^® Emulsion is an eco-friendly non-toxic and non-ionic film forming adjuvant, which forms an elastic film on the surface of plants and increases the diffusion resistance of stoma’s effects on water vapor and carbon dioxide (CO₂), as well as decreases the content of moisture diffused into the air. Meanwhile, the properties of PINEYE^® Emulsion change the leaf water potential and improve the photosynthetic rate during drought conditions.

Type of Antitranspirant	Product
Metabolic (Stomatal closing)	Phenyl mercuric acetate(PMA), ABA, FA
Film forming	Cetyl Alcohol, Polyvinyl chloride, Ethyl alcohol, Polyethylene, Polypropylene
Reflecting	Kaoline, Kaolinite, Hydrated lime, Calcium carbonate, Magnesium carbonate, Zinc sulphate

Table 1. General types of plant antitranspirant.

In the last 20 years, similar adjuvants mixed with fungicides showed results that the ingredients can be used as potentiating agent. The active ingredients of PINEYE^® Emulsion were extracted from pine trees, which have friendly bioactive properties with the blade surface of plants. When PINEYE^® Emulsion is mixed with water, the film features offer a supplementary permeability, which not only reduces the transpiration property of plants, but also help the fungicides access the hairy or waxy blade surface evenly. A test shows the improvement on the contact combination system between microdroplet and fungicides.


Downy mildew is a disease of the foliage, caused by a fungus-like organism. It is spread by airborne spores and moisture as the infection is favored by prolonged leaf wetness. (RHS Gardening) Especially during the rainy days in the late spring and early summer, the risk of infection is high because of the multiple rainfall and moderate to high temperatures. Downy mildew can reduce the yield by 20-40%. The disease causes serious economic losses to the growing industry.