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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Issue 70 (1965) → Determining Minimum Amounts of TMTD Rabbit Repellent Needed to Protect Douglas-Fir Planting Stock

Determining Minimum Amounts of TMTD Rabbit Repellent Needed to Protect Douglas-Fir Planting Stock

The feeding of wild mammals, particularly the Lagomorpha, can be highly detrimental to forest regeneration in the Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) region. Young plantations have been extensively damaged by hares and rabbits (4). To protect newly planted seedlings from such damage, several nurseries now treat planting stock with TMTD repellent (1, 2). The repellent in a 10-percent formulation is sprayed on the seedlings shortly before lifting, and protection in the field is expected to last through the first dormant season. Nursery application of the repellent, however, has been based on very little research, and performance of treated seedlings in the field has not always been satisfactory.


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Author(s): M. A. Radwan

Publication: Tree Planters' Notes - Issue 70 (1965)