Annual Report, Volumes 37-41

acre Agriculture American chestnut annual Barcelona bark bearing Beltsville black walnut blight buds burs butternut Carpathian catkins chestnut blight chestnut trees Chinese chestnut Committee Corsan County cracking Crane Crath crop curculio disease Experiment Station farm Farmer favorable feet fertilizer filberts forest frost fruit grafted grown growth hardy harvest heartnut hickory honeylocust Horticultural hybrids inches insects interested Japanese Japanese chestnut Japanese walnut Jones kernels killed leaf MacDaniels method moisture mulch native Northern Nut Growers nursery nurseryman Nut Growers Association nut trees Ohio Ontario orchard pecan pecan trees Persian walnut persimmons planted pollen pounds President Davidson produced propagation Route scion season seed seedling trees seedlings shagbark shell Silvis Smith soil South species spray spring Stoke storage temperature Tennessee Thomas tion top-worked Valley varieties Virginia walnut trees Weber weevils Weschcke wood yield