Rangeland Ecology & Management
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LD50
The relative degree of toxicity of pesticides to warm-blooded animals defined as the single dosage by mouth that kills 50 percent of test animals, expressed as mg/kg of body weight.
Source
Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.