Based on the results, more precise fungicide use recommendations and fungicide programs can be developed for early blight management.Ĭhemical disease management field crops fungi vegetables. Specialty fungicide programs increased overall tuber yields by 4 and 9% over standard fungicides and nontreated control, respectively. Furthermore, control efficacy of both fungicides was higher (3 to 9%) at late bulking and tuber maturation when compared with early bulking crop growth stage. Select the Right Fungicide to Protect Your Potatoes Know the Pathogen. For both potato growth stages, specialty fungicides performed better than standard protectant fungicides. Thus the impact of potato fungicides in 2016 opposed to 2017. Control efficacy of fungicides ranged from moderate to very high (>30 to 75%) compared with the nontreated control. In Variety fungicide combination effect on tuber yield all variety spray combinations, yield loss increased with decreasing There was no significant yield differences (p<0.05) among tolerance level and efficacy of fungicides. Plant Pathology, Cornell University, Ithaca, NY. 1Spray ground or aerial Fungigation application through sprinkler irrigation system. POTATO FUNGICIDES (Labeled & Rates/A) as of July 15, 2005T. 3See fungicide resistance management statement on. 2X product labeled for crop and disease Blank product not labeled for specific disease. 6 are developmental or reproductive toxins. And out of these 35: 6 are known or probably carcinogens. Control efficacy at two crop growth stages (tuber initiation/early bulking and late bulking/tuber maturation) and the overall tuber yield response to standard and specialty fungicides were assessed using network metaanalytic models. Potato SOIL APPLICATION (continued) 1Dosage amount of formulated product to apply. 1) According to the USDA’s Pesticide Data Program, 35 different pesticides have been found on conventional potatoes. To manage early blight, standard protectant fungicides and single-site mode-of-action "specialty" fungicides are applied either alone or incorporated into a fungicide rotation program. Because of the lack of resistant potato cultivars, fungicides are applied extensively to obtain adequate control. A low-cost tool helps solve the problem by. They are often unsure of which type of fungicide to use (systemic or contact) and the appropriate time to use it. Early blight is an economically important foliar disease of potato in the United States. Small-scale potato farmers in developing countries use fungicides to control late blight, increasing production costs and exposing their health by applying the toxins without protection.
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