Juglans regia e Carya illinoinensis, ambas da família Juglandaceae, são espécies de nogueiras conhecidas mundialmente pela produção das chamadas nozes, com crescente expansão área cultivada na América do Sul. Entretanto, nos últimos anos houve aumento incidência doenças nessas espécies, o que compromete a rentabilidade dos cultivos qualidade produto. Colletotrichum nymphaeae foi recentemente id...

The pecan weevil, Curculio caryae (Horn), is a key pest of pecans in the Southeast. Entomopathogenic nematodes have been shown to be pathogenic toward the larval stage of this pest. Before this research, only three species of nematodes had been tested against pecan weevil larvae. In this study, the virulence of the following nine species and 15 strains of nematodes toward fourth-instar pecan we...

Pecan scab, caused by the plant pathogenic fungus Fusicladium effusum, is the most destructive disease of pecan, an important specialty crop cultivated in several regions of the world. Only a few members of the family Venturiaceae (in which the pathogen resides) have been reported sequenced. We report the first draft genome sequence (40.6 Mb) of an isolate F. effusum collected from a pecan tree...

The recycling potential of entomopathogenic nematodes in the pecan weevil, Curculio caryae, following inundative applications is an important factor in considering whether nematodes could be incorporated into a C. caryae management strategy. Our objective was to determine the recycling potential and fitness of Steinernema carpocapsae and S. riobrave cultured in C. caryae. To estimate fitness an...

Geomys bursarius (Shaw, 1800) is a geomyid commonly called the plains pocket gopher. A stocky rodent morphologically adapted for a fossorial life, it is 1 of 11 species in the genus Geomys. It occurs in southern Manitoba, Canada, and throughout the central United States southward to Texas. It prefers open grasslands and agricultural fields and is considered an economic pest. The subspecies G. b...

High-performance liquid chromatography (HPLC) analysis was used for identification of two problematic ureides, asparagine and citrulline. We report here a technique that takes advantage of the predictable delay in retention time of the co-asparagine/citrulline peak to enable both qualitative and quantitative analysis of asparagine and citrulline using the Platinum EPS reverse-phase C18 column (...

Pecan is an important horticultural nut crop originally from North America and now widely cultivated in China for its high ecological, ornamental and economic value. Currently, there are over one hundred cultivars grown in China, including introduced American cultivars and Chinese seedling breeding cultivars. Molecular markers were used to assess the genetic diversity of these cultivars and to ...