Pyraclostrobin

Pyraclostrobin is a quinone outside inhibitor (QI)-type fungicide used in agriculture. Among the QIs, it lies within the strobilurin chemical class.
Use.
Pyraclostrobin is used to protect "Fragaria", "Rubus idaeus", "Vaccinium corymbosum", "Ribes rubrum", "Ribes uva-crispa", blackberry (various "Rubus" spp.), and "Pistachio vera".
Target pathogens.
Pyraclostrobin is used against "Botrytis cinerea" and "Alternaria alternata".
Resistance.
Resistant populations have been identified in:
Geography of use.
United States.
Pyraclostrobin was widely used throughout the United States , but especially in the Upper Midwest.
Off-target toxicity.
Although toxic, and recommended to be avoided by humans, pyraclostrobin is of temporary and low toxicity, that is to say it is merely an irritant of eyes and skin. It does cause some degree of reproductive and developmental failure in mammals but does not absorb well through the skin. It is likely to bioaccumulate in aquatic organisms.
Residues in diet.
Pyraclostrobin does not accumulate in foods to a significant degree.
Biodegradability.
Pyraclostrobin is described by one source as not very biodegradable, and by another as possibly significantly biodegradable.