Italian Arum - Knowledgebase Question

Stockton, CA
Avatar for bbykchr
Question by bbykchr
January 5, 1998
I have Italian arum all over my property which has spread everywhere. It grows from bulbs and I have had little luck in getting rid of it even in small areas by digging out the plant and bulbs. There are multiple bulbs, many of which are very small, so it is impossible to control simply by digging it out. I also pull off the seed stalks to keep it from reseeding. I tried one herbicide with no result. Do you have a solution?

Answer from NGA
January 5, 1998
Persistance is probably your only defense against the invasion. There are herbicides out there, but many are not registered for use against arum, or are not registered for broad spectrum use.

As long as you're pulling as the plants emerge, andare removing seed heads, you'll eventually get control of them. Since the bulbs need the leaves to produce energy, keep the leaves pulled or cut off. The bulbs will die after using up all of their stored energy. Just keep at it.
In small areas, you can smother the plant by laying down several layers of corrugated cardboard (or newpapers) and covering the area with a thick layer of mulch to weigh it down.

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