And I completely disagree that mixing causes effectiveness to noticeably decrease. In fact, NOT adding a spreader/sticker to the mix will decrease the coverage and protectiveness of Daconil or any other fungicide.
Think about it. You add x ounces of Daconil to x gallons of water. When sprayed there is still the same ratio of Daconil : water. The addition of another liqiud chemical reduces the ratio insignificantly. If you wanted to, you could add a little more Daconil to keep the ratio the same.
This thing about receptor sites makes no sense to me either. Every epidermal leaf cell is receptive under the right conditions. That is why completeness of coverage with a spreader/sticker is most important.
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