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Showing 1 to 20 of 36 for “"Canker"”.
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Epidemiological aspects of bacterial canker of tomato
… were used to study the epidemiology of bacterial canker of tomato (Lycopersicum esculentum Mill.). Clipping tomato seedlings in transplant beds with a rotary mower transmitted CMM$\sp{\rm rif+}.$ The incidence of systemically infected plants in production fields increased about 10% for each 0.1% …
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Colorado cytospora canker complex on Populus tremuloides Michx.
Cytospora canker is a serious fungal disease affecting aspen in natural and commercial forests as well as urban sites. In Colorado the causal organism responsible for this canker disease is typically reported to be Cytospora chrysosperma (Pers.) Fr. However, a thorough understanding of the species …
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Epidemiology and Control of Perennial Canker of Peach
Made available in DSpace on 2014-12-14T04:37:43Z (GMT). No. of bitstreams: 1 7821234.pdf: 2895679 bytes, checksum: 82023f9c2924263e56521d8fa8af335d (MD5) Previous issue date: 1978
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Management Strategies for Pitch Canker Infected Año Nuevo Stands of Monterey Pine
… techniques for the potentially fatal pitch canker disease (Fusarium circinatum Nirenberg and O’Donnell [=F.subglutinans (Wollenw. & Reinking) Nelson et al. f. sp. Pini). As an ecologically and commercially valued species, a myriad of factors threaten the genetic resources of the …
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Stress Predisposition of Woody Plants to Stem Canker Caused by Botryosphaeria Dothidea
Made available in DSpace on 2014-12-14T04:37:47Z (GMT). No. of bitstreams: 1 8004302.pdf: 2304081 bytes, checksum: 6d1611ea0a7703a31360543a2547d1af (MD5) Previous issue date: 1979
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Managing Phomopsis Stem Canker of Sunflower Using Improved Diagnosis and Quantification of the Causal Pathogens
<p>Phomopsis stem canker is a disease that severely affects sunflower (<em>Helianthus annuus)</em> in the United States. From 2001 to 2015, disease prevalence has increased from 1.5% to 61%, and two new causal agents, <em>Diaporthe gulyae</em> and <em>Diaporthe stewartii</em>, have been described …
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Stress Physiology of Phytophthora-canker Pathogens in Landscape Trees: impacts, mechanisms, and mitigation through biochar amendment
… 1) what are the physiological impacts of stem cankers caused by Phytophthora cactorum in Acer rubrum seedlings, 2) if biochar amendment induces resistance to canker causing Phytophthora pathogens and how this resistance is related to the amount of biochar amendment in two common landscape tree …
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ANATOMICAL AND PHYSIOLOGICAL ASPECTS OF A HOST-PATHOGEN INTERACTION: CYTOSPORA CANKER ON PRUNUS PERSICA (L) BATSCH
… Anatomy of Cytospora Canker During Initial Canker Formation. Changes occurring in response to wounding and wounding plus inoculation were monitored over a one year period. Gum ducts were produced in the xylem to form a barrier zone in both treatments. NP formed at a …
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A Study of Apple Canker and Its Incitant Monochaetia Mali With Some Aspects of Etiology and Physiology of Pathogenesis
Made available in DSpace on 2014-12-10T23:32:45Z (GMT). No. of bitstreams: 1 7317339.pdf: 1646999 bytes, checksum: dd2f5d22d4ff07f7b9457f02234c8bcf (MD5) Previous issue date: 1972
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A Study of the Perennial Canker of Peach, With Emphasis on the Physiologyof Causal Organism as Related to Pathogenesis
Made available in DSpace on 2014-12-09T18:06:32Z (GMT). No. of bitstreams: 1 7013321.pdf: 2336636 bytes, checksum: a2a1ce15777e8489f1b667d6df68df35 (MD5) Previous issue date: 1969
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Developing Novel Management Options for Pear Fire Blight and Apple Bitter Rot with Characterization of Apple European Canker in Virginia
… by Erwinia amylovora and preventing fire blight cankers on pear trees, a two-year evaluation was conducted. The study assessed the efficacy of preventive treatments, including foliar spray and trunk injection applications of Giant Knotweed Extract (RSE) alongside antibiotics. Results highlighted …
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Analysis of a <i>Pinus Radiata</i> Seed Stock Field in the Native Año Nuevo Stand in California
… to address the potential threat that the pitch canker disease poses to the use of Pinus radiata D. Don in plantations in New Zealand, Australia, and Chile. A field trial of 264 seedstocks was planted adjacent to a native stand of pitch canker infected P. radiata on the central coast of …
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Biology of virulent and hypovirulent Endothia parasitica on American chestnut (Castanea dentata)
… sporulating characteristics of biocontrolled H+V cankers. The histopathology of canker development on blight-resistant Chinese and blight-resistant and blight-susceptible American chestnut was examined after inoculation with V and H E-parasitica. Rapid formation and continual growth of mycelial …
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The role of chemical canopy sprays and irrigation methods on the incidence of the perennial canker, Cytospora plurivora in western Colorado peach orchards
… C. plurivora is responsible for Cytospora canker disease and is a limiting factor in peach production in the Grand Valley. Peach growers have limited management methods available to combat this disease, which prompted an investigation into irrigation practices as well as prophylactic …
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Mangrove population dynamics in relation to disturbance and recruitment within South African estuaries
… disturbances (per estuary), disease indicators (canker, fungi, and gummosis) and reproductive structures (flowers, propagules, and calyxes) for each individual within our sampling sites. To quantify and assess the population structure of each estuary, various indices were used to establish the …
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Spread of White Hypovirulent Strains of Cryphonectria Parasitica Among American Chestnut Trees at the Lesesne State Forest
Sixty-two natural cankers on branches and main stems of three 16-year-old grafted American chestnut trees at the Lesesne State Forest were sampled for Cryphonectria parasitica. Cankers were sampled in 1996 and 1997 at various distances from the main stem zone on the grafts (ground to 183 cm) that …
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A study of trunk injuries and diseases of apple trees
Owing to the prevalence of canker diseases in Missouri apple orchards, and the untold damage which they are causing, the growers are asking for information that will enable them to combat these diseases successfully. It was with the idea of obtaining additional information concerning these …
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