Phytophthora infestans is the oomycete responsible for both Tomato Late Blight and Potato Late Blight and was the cause of the 1840 Irish Potato famine. Tomato Late Blightimage by Margaret McGrath, Cornell Bugwood[/caption] It also attacks other members of the solanacea family including petunia and nightshade affecting all above-ground portions of the plant. Symptoms appear first on the younger leaves as irregularly shaped lesions and white cottony growth on the underside of the leaf. Cool (nights in the 50s-60s and days in the 80s), wet weather and clouds provide optimal conditions for the disease. Tomato Late Blightimage by Gerald Holmes - Bugwood[/caption] Management Grow resistant varieties Plant early in the season Prevent water from staying on leaves Remove infected leaves, fruit, plants, and weeds .
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Phytophthora infestans is the oomycete responsible for both Tomato Late Blight and Potato Late Blight and was the cause of the 1840 Irish Potato famine. Tomato Late Blightimage by Margaret McGrath, Cornell Bugwood[/caption] It also attacks other members of the solanacea family including petunia and nightshade affecting all above-ground portions of the plant. Symptoms appear first on the younger leaves as irregularly shaped lesions and white cottony growth on the underside of the leaf. Cool (nights in the 50s-60s and days in the 80s), wet weather and clouds provide optimal conditions for the disease. Tomato Late Blightimage by Gerald Holmes - Bugwood[/caption] Management Grow resistant varieties Plant early in the season Prevent water from staying on leaves Remove infected leaves, fruit, plants, and weeds .
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NC State Plant Disease Fact Sheets have disease management recommendations for organic growers and for home gardeners. Cedar apple rust on Serviceberryimage by Lucy Bradley[/caption] There is a description of the disease, a list of host plants, diagnostic cues and images, everything you need to identify and manage disease problems in your garden and landscape.
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A foliar, fungal like disease of cucumbers, cantaloupe, melons, squash and pumpkins, Pseudoperonospora cubensis generally arrives in North Carolina in May or June and escalates through fall. Cucurbit downy mildew, Top of leafimage by Gerald Holmes[/caption] Minimize cucurbit downy mildew damage by: Keeping leaves dry when possible: Water the soil rather than the plant Use drip irrigation Water early in the day Space plants to allow air circulation. Plant early in the season to harvest before fall when disease levels are highest in North Carolina. At present, no resistant varieties are available. More Information and Images
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Check out the Map of Public Gardens on the NCSU Gardening Portal * Click on a marker for detailed information about that garden. * Use the zoom tool on the left to focus in on a particular area or to view a larger area. * Click and drag to reposition the view. * Click a type of garden in the key to view only gardens of that type. * Scroll down below the full size map for an alphabetical listing of gardens.
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Southeastern Vegetable Crops Handbook[/caption] Everything you need to know to successfully grow vegetables in the Southeast including: varieties, planting dates, fertilizer recommendations, cover crop selection, pesticide selection, grafting, postharvest handling, pest management and much more!
READ THE REST »The Plant Disease and Insect Clinic (PDIC) will conduct a hands-on workshop in plant disease diagnosis for NCCE Area Specialized Agents and County Agents. Date: Friday, October 7, 2016Time: 8:45 a.m. to 3:15 p.m. Place: …
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PDIC blog
Three students at East Chapel Hill High School, Brooke, Julia and Danielle, and Environmental Science Teacher, Mr. Edward Kaybay, share their experience starting a pollinator garden at their school. Listen to the interview MORE » – from Extension Gardener
While it is time to start planting your fall garden, establishing seeds and plants in the heat and dry conditions of late summer can be a challenge. Here are a few tips that MORE » – from Chatham County Center
Vegetable Gardening, Chapter 16 of the Extension Gardener Handbook Now available for free on line Everything you need to know to grow vegetables in North Carolina. Selecting a Garden Site; Choosing a type and MORE »
New and improved and even better than before. “Butterflies in Your Backyard” has been updated and re-released with a beautiful new cover. Available for free online (PDF version linked), it has wonderful information on North MORE »
Massimo Iorizzo and Hamid Ashrafti, Research Scientists in the NC State Department of Horticultural Science, along with other scientists around the world recently published a paper describing the carrot genome sequence. These findings could MORE »
State Climate Office of North Carolina Climate Thresholds Tool – Calculate the average first and last frost dates for your garden. Step 1: Choose your location of interest by clicking on the map MORE »
An in depth look at how to effectively use cover crops in vegetable gardens, this 19 page document by Dr. Megan M. Gregory is free to download. More information on using cover crops MORE »
Learn to make and sell vermicompost. Understand the benefits of vermicompost to plants and soil. Check out the agenda and speakers Find out why one of our speakers was featured on TV’s Blue Collar Millionaire MORE »
