Originally Posted by Commander
The trees I cut down are not close to the pond. I originally sprayed the leaves with a strong mixture of Diquat and Roundup. They all turned brown and fell off, then not long after they all came back nice and green. Could not believe how tough they are.

Don't mix herbicides with different modes of killing the plants together. As you have seen, that doesn't work. Diquat is a contact, glyphosate is a systemic. Diquat killed the green leaves before the plant had time to absorb the systemic.

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