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- Author or Editor: C. N. Clayton x
Naturally occurring fireblight disease incited by Erwinia amylovora (Burr.) Winslow et al. was observed on old trees of ‘Bradford’ pear (Pyrus calleryana Decne.). Affected twigs dropped from the trees by midsummer leaving no trace of symptoms or disfigurement of the trees.
‘Derby’ peach [Prunus persica (L.) Batsch] was released in 1978 to fill the need for an early, large, fresh-market peach. Derby is the name of a town in the North Carolina sandhills.
Effects of 8 peach seedling rootstocks on tree growth, survival, and fruit yield of ‘Redhaven’ and ‘Loring’ peach scion cultivars were tested in Alabama, Arkansas, Georgia, North Carolina, and South Carolina. Lovell seedling rootstock was a standard for comparison. Six years of data indicated that Siberian C was not an acceptable rootstock because tree survival and fruit yield were low. Halford was equivalent to Lovell for tree growth, fruit yield, and survival. Fruit size was unaffected by rootstock. Nemaguard and 2 North Carolina selections were resistant to root-knot nematodes (Meloidogyne spp.) but they were not resistant to ring nematodes [Criconemella xenoplax (Raski) Luc and Raski]. Soil fumigation improved tree survival in nematode-infested soil.