Abstract
Abstract Greenhouse and field experiements against 12 fungal pathogens were carried out with 5 quaternary ammonium salts obtained by quaternization of tertiary amines of the N‐methylmorpholine or N‐methylpiperidine types with suitable chloromethyl alkyl ethers. The most promising results were obtained in the control of apple scab (Venturia inaequalis) in concentrations of 700–350 ppm of active ingredient and Alternaria dianthi, Drepanopeziza ribis, and Septoria apii at a concentration of approximately 500 ppm with such compounds as: Tetradecyloxymethylene‐N‐methyl‐morpholinium chloride (IPO‐2323); Hexadecyloxymethylene‐N‐methylmorpholinium chloride (IPO‐2506); Dodecyloxymethylene‐N‐methylpiperidinium chloride (IPO‐2515) and Hexadecyloxymethylene‐N‐methylpiperidinium chloride (IPO‐2327).
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