Wilson, J. P., and Hanna, W. W. 1992. Effects of gene and cytoplasm substitutions in pearl millet on leaf blight epidemics and infection by Pyricularia grisea. Phytopathology 82:839-842. Derivatives of the pearl millet inbred Tift 23 with substitutions for allele. Disease ratings made early in the season in the 1991 field experiment various cytoplasms and alleles conferring morphologic or devel...

The nutritional status of a plant is known to influence its susceptibility to pathogens. In the case of Botrytis cinerea the role of nitrogen fertilization of various host plants on disease development appears to be variable. This study was carried out to characterize possible variability associated with strains and inoculum density of B. cinerea in its ability to infect leaf-pruning wounds and...

aluminum pans 20 X 20 X 5 cm. No additional fertilizer was used. The soilMadariaga B., R., and Scharen, A. L. 1986. Interactions of Puccinia striiformis and andimixnwasfsufficientlys nutritious to Mycosphaerella graminicola on wheat. Plant Disease 70: 651-654. sand mix was sufficiently nutritious to support completely healthy-appearing Puccinia striiformis and Mycosphaerella graminicola are fre...

Sclerotinia blight, caused by Sclerotinia minor Jagger, has become one of the major limiting factors in peanut (Arachis hypogaea L.) production. The objectives of this research were to evaluate the effects of plant spacing on disease incidence and severity of Sclerotinia blight in peanut research plots, to measure the level of apparent resistance at different seeding rates, and to determine whi...

A diverse collection of germplasm representing 24 taxa from Catalpa sect. Catalpa Paclt and sect.MacrocatalpaGrisebach, Chilopsis D. Don, and ·Chitalpa Elias & Wisura were screened for susceptibility to powdery mildew (PM) incited by Erysiphe elevata (Burr.) U. Braun & S. Takam and feeding by catalpa sphinx larvae (CSL), Ceratomia catalpae (Boisduval). PM screening was conducted on plants grown...

Research was done to determine if enhanced resistance to potato (Solanum tuberosum L.) late blight could be obtained by combining host plant resistance and engineered resistance. Late blight susceptible cultivars, Atlantic, and Spunta and the partially resistant cultivar Libertas were transformed with a fungal glucose oxidase gene, resulting in lines which ranged in transgene copy number from 1...

Resilient agriculture seeks to increase the production of high-quality foods meet immediate social and economic requirements while simultaneously maintaining healthy ecosystems support future needs society. Fungicide resistance is considered as a major challenge agricultural sustainability, an important intrinsic component natural sustainability (Fisher et al., 2018; Hahn, 2014). Plant diseases...

Late blight of potato (Solanum tuberosum L.), incited by Phytophthora infestans (Mont.) de Bary, is a devastating disease affecting tuber yield and storage. Recent work has isolated a resistance gene, RB, from the wild species Solanum bulbocastanum Dun. Earlier work in Toluca, Mexico, observed significant levels of field resistance under intense disease pressure in a somatic hybrid containing R...