Phyton 35 does not mention anything about tank mixing with other products on the product label other than those it should not be mixed with. Since it is already a fungicide, we would not recommend mixing with another like Neem Oil as you could risk burning your plants. As far as tank mixing with…
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A copper fungicide such as Phyton 35 will start working right away. However, keep in mind that this will not correct existing damage; rather, it will prevent further damage from taking place.