November 3, 2020 - Report summarizes findings from plots comparing release from hardwood competition by basal spraying herbicides at two dilution rates at age one to no treatment and measured through age 17. Herbicide plots averaged 68-70% more basal area and 91-99% more volume than check plots.
November 3, 2020 - Report summarizes findings from plots comparing release from hardwood competition by mist-blowing herbicides at age four to no treatment and measured through age 21. Mist-blown plots averaged 78% more basal area and 91% more volume than check plots.
November 3, 2020 - Report provides information from a study comparing nursery survival and growth of loblolly pine seed from three size classes sown at the same rate in replicated seedbed plots.
November 3, 2020 - Report summarizes findings from plots comparing release from hardwood competition by either hand chopping or mist-blowing herbicides at age five to no treatment and measured through age 22. Hand-chopped plots averaged 52% more basal area and 63% more volume than the check plots, and mist-blown plots averaged 19% more basal area and 17% more volume than check plots.
November 3, 2020 - Report provides information on three-year performance of loblolly pine seedlings subjected to mechanical root wrenching in the seedbeds (simulated by hand-pulling) and top clipping.
November 3, 2020 - Report documents the effects of severe hail on loblolly pine seedlings with three different kinds of damage: those with stems broken at the groundline survived best (62%) and had the best growth; those with stems broken above the groundline survived worst (24%) and were intermediate in growth, and those with unbroken stems which lost most of their cotyledons were intermediate in survival (46%), and had the slowest growth.
November 3, 2020 - Report provides information on growth and survival for three years after planting of loblolly pine grown at 24, 36, and 52 seedlings per square foot in the nursery bed.
November 3, 2020 - Report summarizes three-year results of a trial initiated in 1982 to compare different undercutting treatments (once, twice, or three times) in the nursery. Results indicated small or no difference in survival or height growth after any of the treatments.
November 3, 2020 - Report provides findings from 57 black walnut planting studies installed across Virginia between 1967 and 1974 where the effects of initial seedling size, competition control using herbicides, fertilization, and coppicing after planting were studied.
November 3, 2020 - Report provides results from a study repeated in 1984 and 1985 to evaluate sowing loblolly pine seed at the New Kent Nursery at depths of 0, 1/4, 1/2, 3/4, and 1 inch. Seed at depths of 1/4 to 3/4 inches germinated best, and speed of germination was inversely correlated with sowing depth.
