Re: Short of digging up the corm, how do I kill a patch?
Roundup should be injected into the pseuodstems while leaves are present so it can circulate throughout the plant. Even this will take some time as they are large plants. This is a technique used for killing BBTV infected plants.
You can kill individual pseudostem/corms by cutting it low, carving out a small basin and pouring a small amount of kerosene in it. I don't think this is effective in killing the whole mat, but if you do it to each pseudostem and all the suckers that come up it would likely do the trick eventually. This is a technique used for quick de-suckering in large farms.
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Growing bananas in Colorado, Washington, Hawaii since 2004. Commercial banana farmer, 200+ varieties.
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