Preventing White Grub Infestation in Container-Grown Nursery Stock

Detection of White Grub Damage in Turfgrass Using Remote Sensing

Rationale White grubs (e.g. larvae of Japanese beetles or masked chafers) are the most destructive and economically injurious pests of turfgrasses in the Midwest and eastern United States. Developing grubs feed on turfgrass roots at the soil/thatch interface or in the first few centimeters of soil. Visual evidence of an infestation includes thinning, wilting in the presence of adequate irrigati...

Clonal variation in morphology, growth, physiology, anatomy and ultrastructure of container-grown white spruce somatic plants.

We assessed clonal variation in morphological variables, mineral nutrition, root growth capacity, net photosynthesis, tannin distribution, and cuticle and epicuticular wax features within four families of white spruce (Picea glauca (Moench) Voss). Seeds were collected from four families obtained through controlled crosses among selected genotypes. For each family, plants were produced either fr...

The Role of Ectomycorrhizal Fungi on Fertilized and Unfertilized Nursery Grown White Spruce

Growth and Development of First-year Nursery-grown White Oak Seedlings of Individual Mother Trees

White oak (Quercus alba L.) acorns from individual mother trees at Arrowhead Seed Orchard (ASO, Milledgeville, GA), Beech Creek Seed Orchard (BSO, Murphy, NC), and Savannah River Site (SRS, Aiken,SC) were sown in December 1999 at Whitehall Experiment Forest Nursery (Athens, GA). All 6 mother trees from BSO were grafted. By early April, germination exceeded 80percent for all but six families. Fi...

Survival and Growth of Selected White Spruce Container Stock Types in Interior Alaska

Survival and growth of white spruce (Picea glauca (Moench) Voss) seedlings raised as 4 different-sized container stock types were followed on 5 harvested sites in the Cache Creek drainage of interior Alaska. Stock types evaluated were 1-0 Ray Leach Pine Cells® (65 cm3, 4 in3) and 1-0 Styroblock® sizes 313B (65 cm3, 4 in3), 415B (98 cm3, 6 in3), and 415D (164 cm3, 10 in3). After 5 y, survival an...