January 6, 2010

Disease Management Strategies

Cornell University’s Margery Daughtrey and Michigan State University’s Mary Hausbeck are two of 15 speakers scheduled to present at the 26th annual Pest & Production Management Conference taking place in Orlando, Fla. Both Daughtrey and Hausbeck will be discussing plant diseases, a topic they recently discussed with Greenhouse Grower as the February 25-27 conference approaches. Late blight made the most headlines nationally in 2009, particularly in the Northeast where the weather was especially wet. Is there an effective late blight management program growers could employ for 2010? Don’t produce tomato transplants in a greenhouse where tomatoes are grown as a production crop. Destroy any potato cull piles near the greenhouses–remember this disease affects tomatoes and potatoes, as well as some Solanaceous weeds. Keep the greenhouse environment as dry as possible, which includes watering at a time of day when the foliage can dry quickly, keeping the relative humidity below 80 […]

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September 29, 2009

Veranda O Fungicide Registered In California

Veranda O fungicide from OHP, a product that’s effective on botrytis, rhizoctonia and other hard-to-control diseases, is now registered for use in California. For California growers or others who don’t know, Veranda O contains the active ingredient Polyoxin D, a natural antibiotic and fermentation product of a soil bacterium. According to Jeff Dobbs, OHP director of technical services, the product has virtually no toxicity to land mammals, insects or birds, and it degrades within two to three days in the environment. An easy-to-use water dispersible granule, Veranda O may be sprayed or drenched, and it is designated as a biochemical fungicide by the United States EPA Bio-Pesticide Division. Veranda O also carries a four-hour restricted entry interval and a caution signal word. OHP recommends growers use Veranda O as part of a resistance management strategy that includes rotation with other fungicides with different modes of action. For more information on […]

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September 1, 2009

Maintaining Momentum

Put the he-said, she-said banter aside for a moment. The reality is Late Blight infected Bonnie Plants’ tomato plants earlier this summer, and the outbreak is a black eye to our industry whether the disease originated in a greenhouse facility, a retail store or somewhere else. Vegetable sales were our biggest victory of spring. We reeled in first-time consumers, got them excited about gardening and built some momentum for 2010. Now this. The most visible vegetable brand in the commercial greenhouse industry faces a steep recovery following a Late Blight outbreak. And because Bonnie is the face of vegetables at the box stores, consumers are bound to grow weary about growing any vegetable. We simply cannot afford to lose vegetable consumers. Not when significant headway was made this year connecting with younger consumers. This year proved veggies are a gateway to a new realm of gardeners. And if 2009 was […]

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August 17, 2009

Webinar: Combating Chrysanthemum White Rust

Chrysanthemum White Rust (CWR) is a quarantine-significant pest, so it’s particularly important for growers to be aware of the steps they can take to avoid the disease in their fall chrysanthemum crop. SAF and ANLA join Syngenta Flowers, Ball Horticultural Company and GroLink, three of the major U.S. propagation and breeding companies, in presenting a webinar on CWR. The companies encourage growers and their employees to take part. The webinar is a seminar conducted in person by Dr. Jane Trolinger, a plant pathologist at Syngenta Flowers. The webinar is conducted entirely online from your computer.  It is free, and it only takes about a 30 minutes.  The webinar includes excellent photographs teaching growers how to recognize the symptoms of the disease, and it offers important advice on how to avoid it in your 2009 mum crop. The webinar will run four more times beginning Thursday, August 20: - Thursday, August […]

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August 5, 2009

GreenClean Quashes Unpleasant Greenhouse Odors

GreenClean is a quick and easy solution to unexpected spills in the greenhouse, as it absorbs and contains any liquid mess in one application. GreenCleanDD is an extremely lightweight, dry granular absorbent that utilizes powerful green chemistry to break down and eliminate unpleasant odors leaving behind a light citrus scent. The organic granules attach and absorb liquids, holding up to six times their weight and ensuring complete absorption with less product. GreenCleanDD is also a non-staining formula, absorbing liquids and neutralizing odors on contact. GreenCleanDD comes in 2-pound shaker containers and 25-pound pails. For more information on GleenClean deodorizer, visit BioSafe Systems online.

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June 30, 2009

Identifying Herbaceous Perennial Diseases

The American Phytopathological Society recently published a book titled “Diseases of Herbaceous Perennials” that lists common diseases of more than 150 popular perennials. Growers may fine the book useful, as it arranges perennials in alphabetical order and includes 700 color images that may help identify diseases. The book is divided into three sections. The first focuses on basic strategies for diagnosing and managing diseases of herbaceous perennials, the second includes short profiles of 12 major types of diseases that attack herbaceous perennials and the third section organizes herbaceous perennials alphabetically by genus and matches common diseases to each perennial. “Diseases of Herbaceous Perennials” can be purchased for $79 plus shipping and handling from the American Phytopatholocial Society. Click here for more information.

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May 6, 2009

Marrone Organic Innovations Revises Company Name

Marrone Organic Innovations will now be called Marrone Bio Innovations (MBI) to reflect the company’s broader biopesticide focus. “We are proud to be in the biopesticide business, a crop protection category that is growing, maturing and realizing widespread acceptance in agribusiness globally,” CEO Pam Marrone says. The three products the company markets are Regalia SC, GreenMatch and GreenMatch EX. Regalia controls both fungal and bacterial diseases in ornamental crops; GreenMatch is a burndown herbicide for use in organic crop production; and GreenMatch EX is more specific to landscaping. For more information on MBI, click here.

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May 6, 2009

Pageant Fungicide Now Registered In California

Pageant, a fungicide from BASF Turf & Ornamentals that combines boscalid and pyraclostrobin, recently received state registration for use in California. “Growers everywhere are seeking competitive advantages, including those that help control input costs and boost profit margins,” says Toni Bucci, business manager for BASF. “With Pageant fungicide, growers are able to do more with one disease control application to positively impact their bottom line and produce healthier plants.” Pageant works within minutes of application, inhibiting fungal respiration at two separate sites within the mitochondria of fungal pathogens. In effect, it creates a “double lock-down” on the respiration and energy flow within targeted fungi. For more information on Pageant or other greenhouse products from BASF, click here.

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April 25, 2009

Actinovate Is A Trick Up Your Sleeve

Your plants are potted and the season is going fine. One morning you wake to discover distinctive white or gray spots covering your crop. It’s powdery mildew again, and you need to treat your plants fast. Untreated, powdery mildew can weaken a plant’s structure and impair photosynthesis. Not only does powdery mildew affect the leaf structure of your plants, it also affects the stems, buds, flowers and fruits. An effective tool for treating this disease does not necessarily have to be a standard chemical. Now, you can use an organic alternative that works as good, if not better than, most chemicals. Actinovate SP, a biological fungicide, works to suppress and control powdery mildew quickly and efficiently. Trial photos of plants affected with powdery mildew have shown fungi being suppressed within 24-72 hours after using Actinovate SP. Product Specifications: For application, use 6 to 12 oz. of Actinovate SP in 100 […]

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March 3, 2009

FreeHand Now Registered In California

FreeHand 1.75G herbicide, a BASF product which combines a granular formulation of dimethenamid-P with pendimethalin, received full state registration in California. “With FreeHand, California customers have a powerful, cost-effective alternative to manual weeding,” says Toni Bucci, business manager at BASF. For more information, visit www.betterplants.com.

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February 13, 2009

Industry Company Cracks Unique Forbes List

Which companies will still be around in the year 2109? Forbes magazine put together a list of 100 companies that will still be around, and it included Novozymes A/S, producer of ROOTS products, among companies like BASF, Coca Cola and Toyota among the world’s 100 most sustainable corporations. The list was generated by measuring what companies are doing best in several major sustainability-related areas, including human capital, environmental risks, governance and more. “We are pleased to be included on Forbes’ 100 most sustainable companies list,” says Thomas Nagy, executive vice president of stakeholder relations for Novozymes A/S. “This recognition validates our commitment as a corporation to sustainability and bio-innovation for the future. As the world’s resources become increasingly scarce, we work together with our customers to ‘rethink tomorrow’ and create a more sustainable environment for the world.” Says Novozymes Biologicals President Ted Melnik: “This recognition validates the biological approach offered […]

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