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Make The Most Out Of Your Fungicide Application

May 28, 2021

Use resources to make educated decisions
You already have access to data that can help you determine whether return on investment with a fungicide application is more likely. First, look at your seed guide. Most companies rate hybrids and varieties for their tolerance to specific diseases. Seed choices with lower tolerance to diseases are good candidates for fungicide protection.
While the seed guide is a good place to start, Answer Plot data from WinField United provides more about in-season results. Each year, Winfield United tests 240 hybrids across seed brands to determine response-to-fungicide (RTF) scores. Unlike most seed guides, which base disease ratings on visual observations, Answer Plot data is used to calculate the potential yield response of a fungicide application by hybrid. The trials are replicated more than 200 times to account for different growing conditions and geographies. Data from 2017 Answer Plot trials showed a fungicide yield response averaging 11.2 bushels per acre across tested hybrids when MasterLock adjuvant was included in the tank mix. Yield response ranged from -4 to 38 bushels per acre, which reinforces different hybrid responses to fungicide application.
Get into your fields
Once you understand where in your fields, you’re likely to see the best response to fungicide, it’s time to survey fields. Scout early and often, especially if environmental conditions favor disease development. In general, you’ll see the best return on investment when applying a fungicide at tassel time. But if disease starts early and is progressing quickly, a V5-V8 application can help protect plants until tasseling.
Get the most value from your fungicide treatment by adding an adjuvant like MasterLock to the tank mix. Effective crop protection depends on good coverage. It’s not about the ounces of product per acre that you spray, ­­­­what’s important is that the active ingredient is actually reaching the plant. MasterLock optimizes droplet size to reduce drift potential and help ensure more product penetrates into the canopy. It contains a surfactant to help cover more leaf surface area.
Your local Centra Sota Crop Advisor can help recommend the right fungicide and partner products based on your hybrids and field conditions.

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