By Layne Wade, Technical Sales Support, Arysta LifeScience
Veraison in grapes is just around the corner, so fighting disease pressure – particularly in the form of Gray mold, or Botrytis bunch rot (caused by Botrytis spp.) – becomes a top priority for California growers.
Since Botrytis is found virtually everywhere plants are grown, the chances of grapes encountering it are significant. It is fast-growing, and its smoky-gray spores are spread by wind, water, or even insects. After infection by spores, the fungus depletes nutrients from the plant (in this case, grape bunches). As the fungal colony develops, it can become more aggressive, invading neighboring bunches and spreading to other vines.
Products from the Arysta LifeScience portfolio for grapes can help provide protection that growers want and need against Botrytis:
- PH-D – a broad-spectrum, Group 19 fungicide – has a 0-day PHI in grapes. As an effective tool to control diseases such as Bunch rot caused by Botrytis and berry infections caused by Cladosporium, PH-D should be applied preventatively to grape crops, particularly when climatic conditions exist for the development of harmful diseases. Its unique mode of action works by interfering with chitin-building enzymes, thereby preventing cell wall construction; this makes PH-D a smart addition to a rotational management program when multiple applications are required. Additionally, it is rainfast when dry on the leaf, and growers may apply up to three applications per year.
- ELEVATE 50 WDG provides control of Botrytis bunch rot on both wine and table grapes. It is a protectant fungicide that binds with the waxy layer of the grape plant tissue. In turn, it disrupts the Botrytis life cycle from spore germination to the beginning of mycelial growth and colonization. This results in excellent disease control when applied preventatively. ELEVATE is a member of the FRAC group 17 fungicide class currently available for use on grapes. When used in tank-mix combination or in rotation with other fungicides, it delivers dependable and economical Bunch rot control under a wide range of conditions. The product provides excellent crop safety with no adverse effects on fruit quality, size or flavor, and is easy on most beneficial insects.
To learn more about the Arysta LifeScience portfolio of crop protection products, contact your crop protection retailer, visit www.ArystaSpecialty.com/Grapes or call 866-761-9397.
State registrations may be pending. Always read and follow label directions. ELEVATE and PH-D are registered trademarks of an Arysta LifeScience Group Company. Arysta LifeScience and the Arysta LifeScience logo are registered trademarks of Arysta LifeScience Corporation. ©2017 Arysta LifeScience North America, LLC. SPC-1707 #9