msimerson / 330-NE-193rd-St

House: 330 NE 193rd St
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spray and eradicate all japanese knotweed #87

Closed msimerson closed 8 years ago

msimerson commented 8 years ago

We have Japanese Knotweed in a corner of our yard and in our neighbors yard. Digging it up (mechanical control) doesn't work. Paving over it doesn't work.

Only spraying it with Imazapyr in late September, after it has flowered, when it's sucking sugars down into the roots, is proven to work.

todo

msimerson commented 8 years ago

The knotweed has been sprayed. Now we wait a couple weeks and hopefully watch with delight as the plants all die off.