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Forestry and Hybrid Cottonwoods ...
Forestry Bruce Kelpsas and Chal Landgren Revised:  March 2021 Undesirable woody and herbaceous plants are problems in managed forests and on fence lines and rights-of-way. Safe, dependable methods of chemical weed control have been developed for most ...
Hybrid Cottonwood (Hybrid Poplar) Grown for Pulp Ed Peachey Revised:  March 2021 2,4-D amine (many trade names) Rate 0.24 to 1.43 lb ae/a (0.5 to 3 pints/a) Time May be applied before or after planting. Apply when weeds are actively growing, preferably ...
Vegetation Control with Herbicides The methods selected to apply herbicides for weed and brush control depend on the species composition, proximity of crops, degree of control required, and available equipment. Method and season of application also have a ...
Hazards All methods of forest weeding entail some risks. Some are measurable, such as frequency of accidents. Scientists can evaluate exposure-and to some extent, actual intake-of pesticides, exhaust fumes, fuels, and lubricants-and observe whether worker ...
Special Considerations Competition from brush is only part of the brush problem in areas due for reforestation. Brush is fine habitat for animals that feed on tree seedlings. Moreover, in heavy stands of brush, dead or alive, substantial shade will weaken ...
Special Registrations for Forestry Herbicides should carry specific recommendations for forest or similar use on their labels. Some products are registered for site preparation only, and some for more general use, including conifer release. Some products ...
Invasive Weeds in Forests Invasive weeds have many opportunities to establish and spread in forests. Many of these species are exotic, but many native species also proliferate when given disturbed soils and protected environments. Landowners are urged to ...
Forest Land Weed and Brush Control The objective of weed or brush control in commercial forests is to provide increased seedling survival leading to larger, higher quality harvests, and reduction in time required to bring the crop to maturity. Objectives ...
Vegetation Control with Non-chemical Methods Some weeds lend themselves reasonably well to removal without chemicals. Alder more than 2 inches in diameter can be killed fairly well by cutting at the ground line from mid-June to mid-August. Smaller stems ...