Abstract Chestnut rot caused by Gnomoniopsis smithogilvyi is considered a severe threat to the production of chestnuts from European chestnut ( Castanea sativa Mill.) in Australia and overseas. Currently, most control strategies are applied post-harvest little known about use fungicides reduce nut infection orchards early season. This research evaluated effectiveness various against pathogen vi...

I n recent issues of The Journal several articles have appeared which decribe The American Chestnut Foundation’s breeding program for backcrossing the blight resistance of Chinese chestnut into American chestnut (Hebard 1994a). The breeding program involves repeated crossing of selected C. dentata x C. mollissima hybrids and progeny to C. dentata (American chestnut), hence reconstituting the C....

Chestnut blight is a devastating disease of Castanea spp. Mycoviruses that reduce virulence (hypovirulence) of the causative agent, Cryphonectria parasitica, can be used to manage chestnut blight. However, vegetative incompatibility (vic) barriers that restrict anastomosis-mediated virus transmission hamper hypovirulence efficacy. In order to effectively determine the vegetative incompatibility...

BACKGROUND Hookworm infection is one of the important Neglected Tropical Diseases (NTD) in the world. It was previously more prevalent in the northern and southern parts of Iran with a prevalence rate higher than 40% in some endemic regions; nevertheless, the infection rate has decreased to less than 1%. This study aimed to determine prevalence and molecular aspects of hookworm infections in ru...

The hepatitis C virus (HCV) infection among patients undergoing haemodialysis is high. The aim of this study was to identify the HCV genotypes among chronic haemodialysis patients who were HCV positive in Guilan province, northern Islamic Republic of Iran. All patients on haemodialysis at Guilan haemodialysis centres were enrolled. Enzyme-linked immunosorbent assay and polymerase chain reactio ...

fire blight is one of the most destructive diseases of stone and pome fruits. the causal pathogen is erwiniaamylovora, species in the family enterobacteriaceae. pears are the most susceptible, but apples, quinces and some other rosaceous plants are also vulnerable. in iran, the disease has been reported for the first time in baraghan in alborz province (zakeri & sharifnabi 1991). fire blight pr...