Plum curculio, Conotrachelus nenuphar (Herbst), is a quarantine pest of many temperate fruits, such as pomes, Malus spp.; stone fruits, Prunus spp.; and blueberries, Vaccinium spp.; in North America east of the Rocky Mountains and a small area in Utah. There are two strains, a northern univoltine one that undergoes obligate diapause as an adult and a southern multivoltine strain that usually ha...

Fresh fruits, vegetables and nuts represent a large, highly important, and growing industry. Nonetheless, little is known about their in vivo characterization and morphology, the effect of mechanical harvesting, peelability, postharvest mold, physiological decay, and internal quality. Currently, destructive techniques can be employed to evaluate samples for internal product attributes. However,...

Background: Crataegus mexicana, Hyptis albida, Larrea tridentata, Ocimum baislicum, Prunus serotina, and Smilax spp. are used in Mexican traditional medicine to treat respiratory and gastrointestinal diseases such as flu, cough, diarrhea, dysentery, and other parasitic or microbial infections. Therefore this study was aimed at the pharmacological prospection of these plants against eleven bacte...

We used historical and contemporary survey data to assess the dynamics in two old-growth forests at Savage Mountain, Maryland, versus secondary from surrounding landscape of northern Allegheny Mountain Plateau (AMP). This is first published compilation witness trees western Maryland. The on are presently dominated by mixed oak (Quercus spp. L.; 42%), red maple (Acer rubrum L.), black birch (Bet...

Prunus subg. Prunus sect. Prunocerasus (Rosaceae) is a North American taxon with 17 commonly recognized taxa. To test the hypothesis of monophyly for the section we sequenced the trnG and rpL16 introns and the trnH-psbA and trnS-trnG intergenic spacers for at least two representatives of each of the five subgenera in Prunus. Additionally we sampled heavily among Prunus subg. Prunus sections Pru...

SFB, a candidate gene for the pollen S gene, has been identified in several species of Prunus (Rosaceae). We isolated 5 new SFB alleles from 6 Japanese apricot (Prunus mume) lines using a specific Prunus SFB primer pair (SFB-C1F and Pm-Vb), which was designed from conserved regions of Prunus SFB. The nucleotide sequences of these SFB genes were submitted to the GenBank database. The 5 new SFB a...

Abstract Armillaria and Desarmillaria spp. are causal agents of a devastating root-borne disease peach. Breeding resistant rootstock requires reliable screening tool. An in vitro co-culture screen designed for almond was modified by replacing agar-gelled medium with more aerated phenolic foam combining susceptible rootstocks ( i.e. , common garden experiment) minimizes variation inoculum pressu...

The silver-leaf nightshade nenmtode, Nothanguina phyllobia, is a promising biological control agent for its only reported host, Solanum elaeagnifolium Cav. When infective larvae of N. phyllobia and stem tissue of 39 econmnically important plant species were suspended in 0.5% water agar, nematodes aggregated about S. elaeagnifolium, Solanum carolinense L., Solanum melongena L., Solanum tuberosum...