Adjuvants for Fungicides
Improving the efficacy of fungicide formulations
Adjuvants play an essential role in increasing the biological efficacy of agrochemicals. The role of adjuvants in herbicide formulations is relatively easy to understand since herbicides must always penetrate the weeds to have an effect. Physiochemical factors (such as spray adhesion, spray retention, wetting and spreading) and systemic factors (such as uptake of the active ingredient) determine the efficacy of a herbicide.
With fungicides, the situation is more complicated. The fungicide can be active against the fungal spores on the leaf’s surface, as well as active inside the leaf’s cells. Using an adjuvant introduces another factor in the interaction between the fungus, fungicide, and host plant. The selection of an adjuvant can enhance the uptake and transport of the fungicide spray solution into the cell wall of the fungus. It is this fungicide-adjuvant interaction that makes selection of an adjuvant specific for a particular fungicide and fungus disease. We have developed a range of products specifically to deal with the issues of fungicide formulations. Our adjuvants balance the two driving factors of formulation stability and fungicide efficacy.