Usage
Fludioxonil is a nonsystemic phenylpyrrole fungicide structurally related to pyrrolnitrin.
Uses
Agricultural fungicide.
Uses
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.
Uses
Fludioxonil is a nonsystemic phenylpyrrole fungicide structurally related to pyrrolnitrin.
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.
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