Plant extracts, made by grinding 2 g of fresh tissue in 5 ml of water, were toxic to Tylenchorhynchus dubius and Hoplolaimus spp. Such extracts from leaves and stems of bean (Phaseolus vulgaris L.) and leaves of tobacco (Nicotiana tabacum L.) were most toxic; those from leaves of corn (Zea mays L.), tomato (Lycopersicon esculentum Mill.) and rhododendron (Rhododendron catawbiense L.) were less ...

The eastern redbud (Cercis canadensis L.) is a popular woody ornamental plant native to eastern North America that is planted in the landscape chiefly for its showy early spring bloom. The genus Cercis (family Fabaceae) contains, depending on author, 7 to 13 species or subspecies that occur in North America, Europe, and Asia (4,7,8). Species range in size from small shrubs to trees, tolerate fu...

The Botryosphaeriales order is best known for the diseases they cause in woody plants, as primary pathogens or latent residing tissue of asymptomatic hosts. In first instance, species have been identified Venezuela using morphological descriptions ‘80s and ‘90s, later, mid-2000s molecular techniques. asexual morphs were initially used identification genera species. Lasiodiplodia spp. (as L. the...

A complex set of factors is causing decline of Pacific madrone (Arbutus menziesii) in the Puget Sound region; yet, some trees remain healthy. It is unclear why they do. We are investigating the hypothesis that symbiotic associations between the roots of madrone and soil-dwelling fungi make the trees less susceptible to disease. The effect could occur either directly or by providing physical lin...

This paper provides recommendations of one name for use among pleomorphic genera in Dothideomycetes by the Working Group on Dothideomycetes established under the auspices of the International Commission on the Taxonomy of Fungi (ICTF). A number of these generic names are proposed for protection because they do not have priority and/or the generic name selected for use is asexually typified. The...