Academic literature on the topic 'Dormant fungicide application'

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Journal articles on the topic "Dormant fungicide application"

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Nita, Mizuho, Michael A. Ellis, Leslie L. Wilson, and Laurence V. Madden. "Evaluations of New and Current Management Strategies to Control Phomopsis Cane and Leaf Spot of Grape." Plant Health Progress 8, no. 1 (2007): 69. http://dx.doi.org/10.1094/php-2007-0726-06-rs.

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To extend our understanding of the epidemiology and control of Phomopsis cane and leaf spot of grape, caused by Phomopsis viticola, studies were conducted to: (i) determine efficacy of a dormant fungicide spray program for controlling the disease in its early stage of development (e.g., spring); (ii) evaluate a disease warning system by applying fungicides and fungicide-adjuvant combinations in response to predicted infection periods based on weather conditions; and (iii) correlate commercial control practices and environmental conditions with disease incidence based on a state-wide survey of
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Frederick, Zachary A., Sara M. Villani, and Kerik D. Cox. "The Effect of Delayed-Dormant Chemical Treatments on Demethylation Inhibitor (DMI) Sensitivity in a DMI-resistant Population of Venturia inaequalis." Plant Disease 99, no. 12 (2015): 1751–56. http://dx.doi.org/10.1094/pdis-12-14-1253-re.

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Demethylation inhibitor (DMI) fungicides are an effective means to manage apple scab caused by Venturia inaequalis. Unfortunately, practical resistance to DMI fungicide chemistries is prevalent in populations in New York and the New England states. Management practices that delay the development of DMI resistance in V. inaequalis populations are highly desired by regional apple producers. Trials were conducted in a New York apple orchard during the 2011 and 2012 growing seasons to determine the impact of delayed-dormant (after bud break, but prior to green tissue) chemical treatments on the DM
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Nita, M., M. A. Ellis, L. L. Wilson, and L. V. Madden. "Effects of Application of Fungicide During the Dormant Period on Phomopsis Cane and Leaf Spot of Grape Disease Intensity and Inoculum Production." Plant Disease 90, no. 9 (2006): 1195–200. http://dx.doi.org/10.1094/pd-90-1195.

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Efficacy of application of the fungicides calcium polysulfide or fixed copper during the dormant period on control of Phomopsis cane and leaf spot of grape (Vitis spp.), caused by Phomopsis viticola, was examined under field conditions during the 2003 and 2004 growing seasons in Ohio. Dormant-period fungicide applications were made either in the fall (after leaf drop and periderm tissue formation on the first-year canes, mid-November), or spring (at bud-swell, mid-April), or both. Disease incidence and severity on leaves and internodes were examined. In addition, effects of dormant-period appl
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Soto-Estrada, A., H. Förster, J. Hasey, and J. E. Adaskaveg. "New Fungicides and Application Strategies Based on Inoculum and Precipitation for Managing Stone Fruit Rust on Peach in California." Plant Disease 87, no. 9 (2003): 1094–101. http://dx.doi.org/10.1094/pdis.2003.87.9.1094.

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In greenhouse and field studies, rust on cling peach caused by Tranzschelia discolor was significantly reduced on leaves and fruit compared with that on controls by foliar applications of wettable sulfur, an agricultural oil, a substituted aromatic (e.g., chlorothalonil), as well as benzimidazole (e.g., benomyl, thiophanate-methyl), sterol biosynthesis inhibiting (e.g., myclobutanil, propiconazole, tebuconazole), and strobilurin (e.g., azoxystrobin) fungicides. The timing of treatments was a significant factor in reducing disease in most trials. Protective programs using wettable sulfur, tebuc
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Pfeufer, Emily E., and Henry K. Ngugi. "Orchard Factors Associated with Resistance and Cross Resistance to Sterol Demethylation Inhibitor Fungicides in Populations of Venturia inaequalis from Pennsylvania." Phytopathology® 102, no. 3 (2012): 272–82. http://dx.doi.org/10.1094/phyto-04-11-0117.

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Orchard management practices, such as destroying of overwintered inoculum and limiting the number of fungicide applications, are often recommended as tactics for slowing the development of resistance to sterol demethylation-inhibitor (DMI) fungicides in populations of Venturia inaequalis. However, there is little quantitative evidence relating the use of such practices to levels of resistance in orchards. The aim of this study was to evaluate the sensitivity of V. inaequalis isolates from Pennsylvania to DMI fungicides, and to identify orchard management factors related to the incidence of res
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Nita, M., M. A. Ellis, and L. V. Madden. "Variation in Disease Incidence of Phomopsis Cane and Leaf Spot of Grape in Commercial Vineyards in Ohio." Plant Disease 92, no. 7 (2008): 1053–61. http://dx.doi.org/10.1094/pdis-92-7-1053.

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A statewide survey for incidence of Phomopsis cane and leaf spot of grape (caused by Phomopsis viticola) was conducted during the 2002 to 2004 growing seasons. Over the 3 years, disease was observed in all surveyed vineyards, and mean disease incidence for leaves and internodes was 42 and 50%, respectively. A hierarchical linear mixed model was used to evaluate effects of region, farm within region, vineyard within farm, sampling site (i.e., vine) within vineyard, and shoot (i.e., cane) within vine on disease incidence. Region of the state did not have a significant effect on incidence but the
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Chen, Wei-Qun, David P. Morgan, Dan Felts, and Themis J. Michailides. "Antagonism of Paenibacillus lentimorbus to Botryosphaeria dothidea and Biological Control of Panicle and Shoot Blight of Pistachio." Plant Disease 87, no. 4 (2003): 359–65. http://dx.doi.org/10.1094/pdis.2003.87.4.359.

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A potential microbial fungicide, Paenibacillus lentimorbus isolate CBCA-2, against Botryosphaeria dothidea, the pistachio panicle and shoot blight fungus, was obtained from healthy pistachio leaves by both in vitro and in vivo screening techniques. CBCA-2 caused 100% inhibition of pycnidiospore germination after 24 h incubation at 25°C. Malformation of pycnidiospores and hyphae, and lysis and swollen pycnidiospores of B. dothidea occurred in the presence of cell suspensions of CBCA-2. Among the five media tested, nutrient yeast dextrose broth significantly increased the production of antifunga
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Johnson, K. B., and W. F. Mahaffee. "Factors Influencing Epidemiology and Management of Blackberry Rust in Cultivated Rubus laciniatus." Plant Disease 94, no. 5 (2010): 581–88. http://dx.doi.org/10.1094/pdis-94-5-0581.

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The blackberry rust pathogen Phragmidium violaceum was first observed in Oregon in spring 2005 on both commercially cultivated Rubus laciniatus (Evergreen blackberry) and naturalized R. armeniacus (Himalayan blackberry). Several commercial plantings suffered severe economic losses. In 2006 to 2008, all five spore stages of this autoecious, macrocyclic rust pathogen were observed annually, and asexual perennation of the pathogen on old leaves or in leaf buds was not evident in the disease cycle. In field experiments, teliospore germination and infection by basidiospores occurred mostly during A
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Akhtar, K. P., I. A. Khan, M. R. Kazmi, R. I. Hassan, and B. Fatima. "Preventive Control of Powdery Mildew Disease of Mango." Journal of Agricultural and Marine Sciences [JAMS] 4, no. 1 (1999): 23. http://dx.doi.org/10.24200/jams.vol4iss1pp23-28.

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Oidium mangiferae Berthet was found to be associated With the powdery mildew disease of mango. The air- borne conidia are released from the old tissue harboring the dormant fungal hyphae under favorable weather conditions, which produce the disease. Proper forecasting of release of airborne innoculum significantly reduced the required number of sprays needed for chemical control. Spore traps were used to monitor the concentration of airborne conidia during the months of February, March and April 1996 and l997. Daily temperature and relative humidity were noted and the spore counts from the spo
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Rolshausen, P. E., and W. D. Gubler. "Use of Boron for the Control of Eutypa Dieback of Grapevines." Plant Disease 89, no. 7 (2005): 734–38. http://dx.doi.org/10.1094/pd-89-0734.

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Eutypa dieback is a perennial canker disease of grapevine (Vitis vinifera) caused by Eutypa lata. The fungus produces ascospores, which infect grapevines through pruning wounds during the dormant season. Management of the disease has been achieved with fungicide applications during the dormant period. However, no effective fungicide was available for this purpose after Benlate was withdrawn from the market. Boric acid (17.5% a.i. boron), a potential alternative to Benlate, was tested in the present study against E. lata. The EC50 values for inhibition of mycelial growth and ascospore germinati
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Dissertations / Theses on the topic "Dormant fungicide application"

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Nita, Mizuho. "Epidemiology and management of Phomopsis cane and leaf spot of grape." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1125542230.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xviii, 163 p.; also includes graphics (some col.). Includes bibliographical references (p. 156-163). Available online via OhioLINK's ETD Center
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