Pesticide Details

Pesticide MCPA isooctyl ester (Rhonox formula)
PC Code 030501
CAS Number 94-74-6
Type of Pesticide Herbicide
Type of Organism Mollusca
Common Name Eastern oyster
Scientific Name Crassostrea virginica
Age 29 mm
Guideline [72-3] Estuarine/ Marine Fish, Shellfish, Shrimp Acute using TGAI or TEP (FIFRA 158.490)
Test Type [F] Flow through system(aquatic acute or chronic)
% AI 43.3%
Study Length 96 hr
Dose Type [LC50] 50% Lethal Concentration in diet or water
Toxicity 114.7 Parts per Billion
95% Confidence Levels N.A.
Probit Slope 0.886
NGL <
NOEL 16
Study Date 1992
Review Date 1993
Category C
MRID, ACC, TN Numbers 42588301
Laboratory Wildlife International Inc., Easton, MD - after 2017 EAG Laboratories
Reviewer K. Montague
Batch Number 032907
Eggs Laid
% Eggs Cracked
% Eggs Viable
% Live Embryos
% Egg Hatch
14 Day Survive
Growth Effect