Searching for ways to manage early season scab?

New pests, resistance shifts, updated regulations – you name it, apple growers have probably seen it change in recent years.

Now, with the upcoming changes to mancozeb use patterns in apples, we need to put our heads together to find ways to manage early season scab in a sustainable way. But how does one produce a high-quality crop now while protecting the chemistry they need for a quality crop five years from now?

An under-used tool in the toolbox is Allegro^® fungicide. Allegro has been on the market for years and is trusted to control difficult diseases in a number of crops. In apples, Allegro has primarily been used as a summer disease control product. However, growers are starting to look at it as part of their scab program because of its unique Group 29 chemistry with low resistance risk. Choosing Allegro for apple scab allows growers the flexibility to save Group 3, 7, and 11 fungicides for when they are needed most.

Like the contact fungicides historically used for early season scab control, Allegro prevents hyphal penetration and growth. It also prevents other stages of infection, including spore germination, appressoria formation, and sporulation.

With up to five applications per year permitted, you can have confidence that a few applications of Allegro in the early season for scab will still allow flexibility to use Allegro to protect from summer diseases later in the season.

Below is a full list of the pests Allegro provides protection against:

• Alternaria blotch
• Apple scab
• Bitter rot
• Black rot*
• Brooks fly spot*
• Cedar apple rust
• Flyspeck
• Quince rust*
• Sooty blotch
• Apple rust mite*
• European red mite*
• Two-spotted spider mite*

*Suppression only

Use rate: 0.5 - 1.0 L/ac (rate dependent on target)
PHI: 28 days
REI: 24 hours

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