Pyrenophora teres f. sp. teres is the cause of net form of net blotch (NFNB), an economically important foliar disease in barley (Hordeum vulgare). Net and spot forms of net blotch are widely controlled using site-specific systemic fungicides. Although resistance to succinate dehydrogenase inhibitors and quinone outside inhibitors has been addressed before in net blotches, mechanisms controllin...

PREMISE OF THE STUDY Plants interact with above- and belowground organisms; the combined effects of these interactions determine plant fitness and trait evolution. To better understand the ecological and evolutionary implications of multispecies interactions, we explored linkages between soil fungi, pollinators, and floral larcenists in Polemonium viscosum (Polemoniaceae). METHODS Using a fun...

Enhancing host defences through induced resistance, disease tolerance, and/or escape, in combination with current management regimes may be a valuable strategy to reduce pesticide use. Since both ‘on-farm’ seed priming (OSP) and chitosan (CHP) have been reported confer varying levels of defence, this study sought investigate their potential deliver control as for sustainable foliar pathogens wi...

thirty seven isolates of erysiphe necator were collected from different vineyards from three regions and nine cities of khorasan razavi province within two time periods i.e. may to june and august to september 2009. their resistance to azoxystrobin + difenconazole (ortiva®) fungicide as well as cross resistance to penconazole and hexaconazole fungicides registered in iran for the control of pow...

The objective of this project was to evaluate the yield response different winter wheat varieties fungicide management treatments during 2019–2020 growing season in Kansas. Fourteen were evaluated under four (no fungicide, application either at jointing, heading, or both stages) five locations across Kansas a split-plot design. Disease incidence assessed approximately 20-d after each applicatio...

Late blight of potato (Solanum tuberosum, L.) caused by Phytophthora infestans (Mont.) de Bary, is a major worldwide threat to the production of high quality potatoes (12). Unchecked, P. infestans can rapidly defoliate plants in the field and can infect potato tubers when spores are washed into the soil (15). Prior to the early 1990s, the population of P. infestans throughout much of the world ...