A range of non-ionic surfactants used in spray adjuvants for wetting formulations. Resil’s low molecular weight non-ionic silicone polyether antimicrobial surfactant improves wetting, spreading and penetration of agricultural chemicals. Our product delivers fungicidal and bacteriostatic effects to the plants and can be used either as a formulation ingredient in pesticide products or as a tank-mix adjuvant for foliar applied chemicals. Rapid wetting and spreading on hard-to-wet surfaces, such as waxy leaves combined with rapid uptake, assures ‘rain fastness’ i.e. the antimicrobial agent is not washed off by the rains.