A place for non-resistant genetics Non-resistant genetics have a place in our industry. They offer a wide range of colors, can be grown where the particular disease pressure is not as severe, and are an economical option for growers. Untreated resistant genetics can still be a host for pathogens, so regardless of the potential of having resistant and non-resistant genetics being produced in the same facility, preventive chemistries will always be a necessity . Syngenta Flowers continues to emphasize a safeguard approach by using preventive fungicides, especially in propagation and prior to shipping. From packs for garden borders and landscape beds, to hanging baskets for home gardeners, the proper use of fungicides from propagation to finish is essential to each consumer’s success. With appropriate rotation tools non-resistant genetics can still perform in the landscape for many weeks providing consumer satisfaction.
Landscaper Tech Tip: Assurance for delivering season long performance
Recognizing the achievements, but always striving for improvements The Syngenta Flowers Team is proud of these achievements in advanced disease-resistant breeding and has gained attention in trials around the globe. Imara ® XDR Impatiens first launched in the European market and sold out immediately at retail outlets around the United Kingdom. Consumers were “taking back the shade” and were delighted to have a garden favorite on the retail shelves again. Imara ® XDR Impatiens won the 2019 TASPO Award of the Year for Best Breeding Product and it was awarded for Best Ornamental Plant Introduction—Bedding by Horticulture Week Business Award in London in June 2019. Cora ® XDR is currently the industry-leading disease-resistant vinca around the globe. As flower breeders, we must constantly work on new varieties to keep up with the evolution of diseases that occur naturally. Coupling resistant genetics with other modes of action to control disease is Syngenta’s “responsible mindset” message, reminding growers and landscapers that we must rely on more than one tool when managing diseases. The technical plant scientists and pathologists at Syngenta Flowers have been supporting the bedding plant and landscaping industry’s battle with these problems for decades, providing chemical rotation schedules, common-sense culture tips and grower-specific recommendations to lessen exposure and provide preventive and curative control to these diseases. We know from our long breeding history in vinca and impatiens that we must keep ahead of the disease evolution and remain vigilant in our selections, screenings, and validations. To read more about the historical journey of our disease resistance breeding in these classes please see this article. With recent reports of disease outbreaks, it reminds us that we must all stay vigilant in the disease management process. Growers, landscapers, Extension personnel, and other industry professionals should report new outbreaks of disease when these new innovations and protective measures have been put in place. This high degree of scouting will only strengthen our industry. It’s clear that there’s no one-tool approach to complex disease problems, so please brush off that toolbox and get to work. Landscapers, starting with properly treated plant materials sets you up for success, but there are further actions you can take to improve disease resistance management. Keep in mind that oospores of IDM can overwinter in many parts of North America; a preventive fungicide treatment to ground beds in late summer may help further protect impatiens until first frost. This application may not only prevent an outbreak of IDM at this time, but also preserve planting options for the following spring. Certified professional landscapers should make soil applications to ground beds after transplanting in the spring, particularly when cool, moist conditions prevail or when disease pressure is known to be high in the region. Environmental conditions in the fall are also favorable for this disease. Avoid repeated applications of the same active ingredient to reduce the risk that the disease will become resistant. Subdue ® GR (granule) fungicide or phosphite-containing products are popular garden protectants.
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