Agricultural Silicone Penetrant and Spreader

Agricultural Silicone Penetrant and Spreader is a trisiloxane adjuvant formulated to prioritize cuticular penetration into leaf tissue alongside its spreading action — a distinct emphasis from adjuvants built primarily to maximize leaf-surface coverage. It is developed for spray programs where the active ingredient must actually move into and through the leaf — translocated fungicides such as triazoles and strobilurins, and plant growth regulators (PGRs) such as trinexapac-ethyl and paclobutrazol — rather than programs where surface contact alone is sufficient.

At 0.03–0.06% v/v the product reduces surface tension to approximately 22 mN/m, but its formulation also includes a co-solvent fraction specifically selected to disrupt the wax-platelet structure of the leaf epicuticular layer, temporarily loosening the cuticle's barrier function just enough to allow faster diffusion of dissolved active ingredient molecules into the leaf interior, without causing lasting cuticle damage or phytotoxicity at label rates.

This penetration-first design matters directly for translocated fungicide efficacy: a fungicide molecule sitting on the leaf surface, however well spread, provides no disease control once it has weathered away — its protective or curative action depends on entering leaf tissue where it can either act locally within the leaf or move systemically to new growth. Field measurements of leaf-tissue fungicide concentration following application show 22–38% higher internal leaf concentration when this penetrant-spreader is used, compared with a standard spreading-only silicone adjuvant delivering equivalent surface coverage.

For PGR applications, faster cuticular penetration translates into more consistent growth response timing — a meaningful practical benefit in turf and cereal PGR programs where growth suppression needs to begin within a specific window relative to application, and where slow, incomplete uptake can produce uneven or delayed results across a treated area.

The product remains compatible with the fungicide and PGR chemistries it is designed for, including DMI (triazole), QoI (strobilurin), and SDHI fungicide classes, and does not require specialized application equipment beyond standard boom or airblast sprayers already used for foliar fungicide and PGR programs.