Adverse effects on birds of Phosphamidon applied to a Montana forest
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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.
Suggested Citation
Finley, R.B., 1965, Adverse effects on birds of Phosphamidon applied to a Montana forest: Journal of Wildlife Management, v. 29, no. 3, p. 580-591, https://doi.org/10.2307/3798057.
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 |