Adverse effects on birds of Phosphamidon applied to a Montana forest
Journal of Wildlife Management
By: R. B. Finley Jr.
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Abstract
A field trial of Phosphamidon applied by aircraft in Montana against spruce budworm (Choristoneura fumiferana) had immediate adverse effects on birds. A 5,000-acre block of forested land was sprayed at the rate of 1 pound per acre. Some birds, including blue grouse (Dendragapus obscurus), were killed by the insecticide. Bird activity on the sprayed plot dropped to about one-quarter of the prespray level of activity while it increased on an unsprayed plot. Two sick blue grouse were caught by hand and held in captivity; one died and the other recovered. Analysis of grouse blood samples showed a marked inhibition of cholinesterase activity in the sick birds, followed by return of cholinesterase to normal in the surviving bird.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Adverse effects on birds of Phosphamidon applied to a Montana forest |
| Series title | Journal of Wildlife Management |
| DOI | 10.2307/3798057 |
| Volume | 29 |
| Issue | 3 |
| Year Published | 1965 |
| Language | English |
| Publisher | Wiley |
| Description | 12 p. |
| First page | 580 |
| Last page | 591 |
| Country | United States |
| State | Montana |