During the past decade, the plant disease called scab or Fusarium head blight of wheat and barley has reached epidemic proportions in North America and elsewhere in the world. Scab is an economically devastating plant disease, not only because it causes significant reduction in seed yields and quality, but also because infested seeds are often contaminated with trichothecene and estrogenic myco...

(*) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days. This patent is subject to a terminal dis claimer. 323–326. " N. I. Khan et al., " Developing strategies and organisms for biocontrol of head scab of wheat " , Phytopathology 88:S47 (1998). Performance of selected antagonists of Fusarium head blight against a range of Gibberel...

ABSTRACT The major scab resistance gene Vf, extensively used in apple breeding programs, was recently overcome by the new races 6 and 7 of the fungal pathogen Venturia inaequalis. New, more durable, scab resistance genes are needed in apple breeding programs. F(1) progeny derived from the cross between partially resistant apple cv. Discovery and apple hybrid 'TN10-8' were inoculated in the gree...

ABSTRACT Common scab is a serious disease of potatoes and other root and tuber crops, affecting crop quality and market value. The disease is caused by gram positive soil bacteria in the genus Streptomyces. Disease incidence and severity vary in different locations and years; this is due in part to variation in the environment (weather) and genetic variation in potato cultivars. Little informat...

OBJECTIVE To identify a strain of contagious ecthyma virus from goats that possesses the appropriate characteristics for an effective vaccine for goats. ANIMALS 25 goat kids used for vaccine development and 100 goat kids used for evaluation of vaccine efficacy. PROCEDURES 5 strains of contagious ecthyma virus were tested in a vaccination-challenge study to identify the best strain to be the...

IN HIS annual report for 1902, the Chief of the Bureau of Animal Industry referred to numerous inquiries about a disease commonly known as Texas itch. As the disease appears to have been more prevalent in other sections of the. country than in Texas, it seems strange that this name was applied to it At that time the disease was apparently fairly common among the range cattle of the West and Nor...

Citrus scab disease is one of the destructive diseases that reduce the value of fruit for the fresh market. We analyzed the process of symptom development after infection with scab pathogen Elsinoë fawcettii in the susceptible satsuma mandarin leaves to observe the structural modification against pathogen. The cuticle and epidermal cells along with 3-5 layers of mesophyll tissue were degraded 1...

Potato common scab causes significant economic losses worldwide, and current control methods remain ineffective. However, biological have been effective in controlling phytopathogens several other crops. Trichoderma spp. Bacillus subtilis are the most studied microorganisms agriculture for plant diseases. interactions between these agents organic matter present at cultivation site not extensive...