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control certain species but are not as effective as 2,4-D and 2,4,5-T on the broad spectrum of native shrubs and weed trees found on Pacific Northwest forest lands. This versatility makes 2,4-D and 2,4,5-T invaluable in silviculture. None of the other herbicides allow such selective control. A major advantage of these herbicides is the great range of selective activity that can be obtained by changing carriers and by varying rates and seasons of application.
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The phenoxy herbicides, especially 2,4-D and 2,4,5-T, are by far the most useful herbicides in silviculture. The Forest Service, by this point a world leader in industrial silviculture, had this to say: These are chemicals that kill “broad-leaved” plants like deciduous trees and shrubs while leaving “needle-like” leaved plants (like conifers) essentially unharmed. In five different actions, plaintiffs sought and obtained injunctions against these agencies regarding their use of various “phenoxy” acids. Forest Service (USFS) and Bureau of Land Management (BLM) in the Pacific Northwest. The story revolves around several lawsuits against the U.S. But here’s an educated guess: possibly the biggest role the statute has ever played in reforming any standardized-and incredibly harmful-resource management regime. What role, if any, did NEPA play in that evolution? It is hard to say. After generations of upheaval, though, forestry as a profession changed-at least in most quarters-and the collateral damage of such methods was factored in much more carefully. Grow them as fast as possible, cut them when merchantable, and repeat. Get the “right” species of tree growing on the “right” lands.
#Pacific northwest forest professional
Professional foresters were once trained to think in very few dimensions. Image: a helicopter sprays pesticides in a forest near Mount Hood in Oregon