M
mateo
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what is the best way to deal with powdery mildew in a systemic form?
None of those are systemic treatments.
A LOT of people are throwing a LOT of Eagle 20 at their PM problems, rather indiscriminately IMO. We're busily creating yet another superbug.Margaret Tuttle McGrathAssociate Professor said:Protectant (contact) fungicides are an important component of the fungicide program recommended for managing powdery mildew in cucurbits. They play a critical role in delaying development of resistance to systemic fungicides. The fungus causing cucurbit powdery mildew has an established track record worldwide of being able to develop resistance to systemic fungicides. Most systemic fungicides are at risk for resistance development because they have single-site mode of action. Thus modification of one gene in the pathogen may be enough to enable the pathogen to resist the action of the fungicide.
A LOT of people are throwing a LOT of Eagle 20 at their PM problems, rather indiscriminately IMO. We're busily creating yet another superbug.
Please, be judicious.