Accession Number : ADA322700

Title :   Investigations in Fish Control: 100. Observations on the Effects of Irrigation Water Containing 3-Trifluoromethyl-4-Nitrophenol (TFM) on Plants; 101. Residues of Malachite Green in Muscle, Eggs, and Fry of Treated Atlantic Salmon and Chinook Salmon; 102. Effects of Water Temperature, Hardness, and pH on the Toxicity of Benzocaine to Eleven Freshwater Fishes,

Corporate Author : NATIONAL FISHERY RESEARCH LAB LA CROSSE WI

Personal Author(s) : Gilderhus, Philip A. ; Allen, J. L. ; Bills, Terry D. ; Howe, George E. ; Marking, Leif L.

PDF Url : ADA322700

Report Date : 1990

Pagination or Media Count : 21

Abstract : Because concerns have been expressed about the effects of irrigating truck-garden crops with water from a stream treated with the lampricide 3-trifluoromethyl-4-nitrophenol (TFM), I conducted studies on the effects of TFM on young plants of common vegetables and fruits. Plants established in horticultural flats were irrigated for 12 h with water containing 10 mg/L of TFM and later compared with plants irrigated for a similar period with untreated water. Lettuce, radish, sweet corn, and potato plants were virtually unaffected. Green bean and tomato plants developed brown or dead spots on many leaves but growth rates and survival were not affected. Cucumber and cantaloupe plants were severely damaged; some were killed and about 40% of the leaves on surviving plants were dead or dying. Two weeks after treatment, the mean weight of surviving treated cantaloupe plants was significantly less than that of control plants.

Descriptors :   *WATER, *TOXICITY, *FRESH WATER, *EGGS, *FISHES, *IRRIGATION SYSTEMS, TEMPERATURE, RATES, MEAN, MUSCLES, SURVIVAL(PERSONNEL), BEANS, GREEN(COLOR), CORN, GROWTH(PHYSIOLOGY), FRUITS, LETTUCE.

Subject Categories : Biology
      Toxicology
      Pharmacology
      Biological Oceanography
      Environmental Health and Safety

Distribution Statement : APPROVED FOR PUBLIC RELEASE