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Disease control 101: Prevention is key

April 10, 2019

3 Min Read

You’ve probably heard the expression “The best defense is a good offense.” It’s a strategy that is widely used in sports. It’s also a good rule of thumb when it comes to disease control and resistance management strategies in grapes, where prevention is the name of the game.

Proactive disease prevention is a strategy that can pay off with healthier plants during the growing season and stronger yields at harvest. And once troublesome diseases such as Botrytis bunch rot or Powdery mildew set in, getting rid of the infestation can be costly and time consuming. Planning ahead with rotations of fungicides of different modes of action is also important.

With Powdery mildew, all green tissues of grapevines are susceptible to the fungus, which appears as a white-gray powdery coating on leaves. When the infection advances, it can cause grapes to turn dark brown and shrivel.

Botrytis is a consistent threat starting in the spring and lasting through the entire growing season. As temperatures rise in the spring, spores can infect the flowers of the grapevines. The fungus remains active and, under the right conditions, can infect berries at veraison and during bunch closure.

Products such as PH-D®, ELEVATE® and VITICURE® Fungicides provide effective disease control and feature varied modes of action to help preserve grape growers’ fungicide options for years to come.

PH-D® Fungicide

A broad-spectrum FRAC Group 19 fungicide, PH-D provides excellent knockdown of Powdery mildew while preventing bunch rot caused by Botrytis and other secondary rot-forming fungi such as Cladosporium. Its unique mode of action (FRAC 19) and ability to inhibit fungal cell wall formation make it a perfect addition to your resistance management tool box. And for an even stronger resistance management strategy, PH-D can be rotated with fungicides of other modes of action. The product features a 4-hour re-entry interval (REI) and a zero-day PHI, allowing for greater flexibility during the season.

ELEVATE® Fungicide

Guard your vineyard, as well as your yield, with the help of locally systemic ELEVATE starting at bloom. ELEVATE is a protectant fungicide that binds with the waxy layer of the grape and disrupts the Botrytis life cycle from first bloom all the way to harvest. It is the only member of the FRAC Group 17 fungicide class for resistance management and, when used in a tank mix or rotation with other fungicides, delivers dependable and economical Bunch rot control. Primarily a protective fungicide, ELEVATE also provides post-infection activity when applied early in the disease life cycle.

VITICURE® Fungicide 

Give your vineyard an economical and highly effective season-long option that goes beyond prevention of Powdery mildew in grapes through reach-back activity that cures existing infections. VITICURE features fuming action to penetrate the dense, web-like mats of hyphal strands (mycelia), and it controls Powdery mildew in nooks and crannies where some other fungicides can't reach. It can be tank-mixed with PH-D or ELEVATE, and when applied in a Powdery mildew spray schedule, VITICURE will enhance the activity of registered fungicides used for control of Botrytis bunch rot, showcasing how the product plays an important role in resistance management programs for vineyards.

By minimizing any disease traction in vineyards, growers will see healthier fruit and stronger bottom lines when grape harvest comes around. Regions vary in disease pressure due to weather and other factors; visit Arysta-NA.com or consult your local Arysta LifeScience sales representative for what lineup of fungicide options is best for your grapes.


Always read and follow label directions. ELEVATE, PH-D and VITICURE are registered trademarks of an Arysta LifeScience Group Company. Arysta LifeScience and the Arysta LifeScience logo are registered trademarks of Arysta LifeScience Corporation. © 2019 Arysta LifeScience Group Company. SPC-1908C

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