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Acute toxicities of selected herbicides to fingerling channel catfish,Ictalurus punctatus


A scan of the acute toxicities of eighteen common herbicides to one-year-old channel catfish (Ictalurus punctatus) was conducted. Herbicides causing less than 10% mortality in 48 hr at 10 ppm were: alanap, chloramben, 2,4-D acid, 2,4-D dimethyl amine salt, dalapon, diuron, DSMA, EPTC, fluometuron, metribuzin, monuron, MSMA, nitralin and 2,4,5-T. The 96-hr LC50 values in ppb for four herbicides found toxic were: propanil, 3796; trifluralin, 417; bensulide, 379; and DNBP, 118. The toxicity of Dyanap®, a mixture of DNBP and alanap, was lower than that of DNBP; there was no apparent synergism between DNBP and alanap in the mixture.

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McCorkle, F.M., Chambers, J.E. & Yarbrough, J.D. Acute toxicities of selected herbicides to fingerling channel catfish,Ictalurus punctatus . Bull. Environ. Contam. Toxicol. 18, 267–270 (1977).

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  • Diuron
  • Channel Catfish
  • Endrin
  • Metribuzin
  • Trifluralin