Fludioxonil

The Uses of Fludioxonil

Fludioxonil is a nonsystemic phenylpyrrole fungicide structurally related to pyrrolnitrin.

The Uses of Fludioxonil

Agricultural fungicide.

The Uses of Fludioxonil

Fludioxonil is a non-systemic fungicide used for the seed treatment control of seedling blight, scab, brown root rot, ear blight, smut and leaf spots in cereals caused by Fusarium spp., Septuria nodurum, Tilletia caries, etc. It is also a contact fungicide controlling fruit rot, wood rot, stem rot and root rot in vines, fruits, field crops, vegetables and rice.

What are the applications of Application

Fludioxonil is a nonsystemic phenylpyrrole

Definition

ChEBI: A member of the class of benzodioxoles that is 2,2-difluoro-1,3-benzodioxole substituted at position 4 by a 3-cyanopyrrol-4-yl group. A fungicide seed treatment for control of a range of diseases including Fusarium, Rhizoctonia an Alternaria .

Metabolic pathway

Limited data are available in the open literature. Information presented in this summary was abstracted from the data evaluation published by the Pesticide Safety Directorate (PSD, 1995). Fludioxonil is stable to hydrolytic and soil degradation. Oxidation and hydration of the cyano moiety was observed in and on soil surfaces and probably resulted from photolytic action to yield the corresponding amides and carboxylic acids. Extensive degradation occurred at the pyrrole ring in plants and animals, including hydroxylation and oxidation, followed by ring-opening. Modification of the benzodioxyl moiety was not observed.

Degradation

Fludioxonil(1) is stable to hydrolytic degradation (up to 30 days at 25 °C) over the pH range 5-9.
Fludioxonil degraded in pH 7 buffered solution when exposed to UV light generated by a xenon arc lamp with an estimated DT₅₀ value of 10 days. The chemical nature of three major degradation products (each accounted ca. 15%) was not determined.