#Best fungicide for gummy stem blight trial
Products and rates assayed in this trial included: Product For a complete report of results from our gummy stem blight trial please refer to our demonstration trials. While there are some products labeled for organic operations, no efficacy data has been published. Nonetheless, a fungicide trial conducted in North Carolina last year revealed some products that are effective in controlling gummy stem blight on conventional operations. The disease has been difficult to control in recent years due to the development of fungicide-resistant populations. Once greenhouse transplants in a tray become infected, it is advised to destroy the affected tray and any adjacent trays, since the pathogen will have likely spread to neighboring trays due to irrigation splashing, even if transplants look healthy. Spores of the pathogen can survive on crop residue, so sanitation is key to prevent this disease in the greenhouse and a 2-year crop rotation may be needed for fields that have experienced severe infections. The disease is favored by warm (61☏–75☏), wet conditions (4–10 hours of leaf wetness), and the pathogen is dispersed by water splashing (rain, overhead irrigation), thus, using drip irrigation will help contain infections. The gummy stem blight pathogen can be seedborne, therefore, treating seeds prior to planting is recommended. Pycnidia can be seen with a 10x handheld lens as small brown to black dots (Photo: Shawn Butler, NCSU Plant Disease and Insect Clinic) Note the pycnidia (round, brown reproductive structures) on the surface. 3: close-up of a watermelon seedling stem infected with gummy stem blight seen under a microscope. Please note that some applications and/or services may not function as expected when translated. NC State Extension does not guarantee the accuracy of the translated text. As with any Internet translation, the conversion is not context-sensitive and may not translate the text to its original meaning.
#Best fungicide for gummy stem blight free
To the extent there is any conflict between the English text and the translation, English controls.Ĭlicking on the translation link activates a free translation service to convert the page to Spanish. Por favor, tenga en cuenta que algunas aplicaciones y/o servicios pueden no funcionar como se espera cuando se traducen.Įnglish is the controlling language of this page.
NC State Extension no garantiza la exactitud del texto traducido. Al igual que con cualquier traducción por Internet, la conversión no es sensible al contexto y puede que no traduzca el texto en su significado original. En la medida en que haya algún conflicto entre la traducción al inglés y la traducción, el inglés prevalece.Īl hacer clic en el enlace de traducción se activa un servicio de traducción gratuito para convertir la página al español. NC State Plant Disease and Insect ClinicĮl inglés es el idioma de control de esta página.Syngenta hereby disclaims liability for third-party websites. Sign up for the Know More, Grow More Digest to receive twice-monthly agronomic e-mail updates pertinent to your area.Īll photos are either the property of Syngenta or are used with permission. Switch attacks disease pathogens at 4 different stages in the pathogen life cycle to provide long-lasting control. Inspire Super combines 2 active ingredients for broad-spectrum control of watermelon diseases via its translaminar and xylem-mobile systemic activity. Per Clemson University Cooperative Extension Watermelon Spray Guide, Inspire Super® fungicide and Switch® fungicide are recommended for gummy stem blight management in a rotation program with fungicides from other FRAC groups.
Data discussed in the release demonstrated that the use of systemic fungicides reduced disease severity and also inhibited the formation of fungal spores to a greater extent than protectant fungicides. In a media release issued by Clemson University announcing their release of the 2017 guide, researchers pointed out a major change to recommendations which now emphasize the importance of systemic fungicides to gummy stem blight management. Researchers in key melon regions adjusted management recommendations for this disease during 2017 that growers can use to prepare for 2018. Gummy stem blight control is known to cause yield loss of 30-40% if not properly managed.
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