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Prodiamine: A Herbicide for Pine and Hardwood Nurseries

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Tolerance to applications of prodiamine was examined in field experiments with loblolly pine (Pinus taeda L.), slash pine (Pinus elliottii Engelm. var elliottii), longleaf pine (Pinus palustris Mill.), shortleaf pine (Pinus echinata Mill.), and eastern white pine (Pinus strobus L.) seedlings at nine southern nurseries in 1979 and at six nurseries in 1980. No significant injury was observed when 0.5 kg ai/ha (7.1 oz ai/ac) was applied after sowing (preemergence) or 4 to 6 wk after sowing (postemergence). When applied just after sowing at 1.0 kg ai/ha (13.3 oz. ai/ac), a reduction in emergence was observed with loblolly pine, shortleaf pine, and eastern white pine. Tolerance of various hardwoods was also examined. Sycamore (Platanus occidentalis L.) was sensitive, and seedling production was reduced with both preemergence and early postemergence applications. Green ash (Fraxinus pennsylvanica Marsh.), sweetgum (Liquidambar styraciflua L.), and two species of oaks (Quercus alba L. and Q. nigra L./Q. phellos L.) tolerated rates as high as 1.0 kg ai/ha. South. J. Appl. For. 16(3):142-146

Document Type: Journal Article

Affiliations: School of Forestry and Alabama Agricultural Experiment Station, Auburn University, AL 36849-5418

Publication date: 1992-08-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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