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Re: japanese honeysuckle

At Shaw Arboretum we have really reduced Japanese honeysuckle by 
spraying dense patches in late spring with 1 & 1/2 to double 
strength RoundUp. Prescribed burning also sets it back. As in your 
case, this is hardly our worst exotic weed. We have a Ligustrum and a 
bush honeysuckle that are far worse, and don't like fire much, but in 
dense stands, into which fire won't penetrate (too damp, too little 
fuel), we cut them low and paint the stumps with herbicide. 50% 
RoundUp works when they're actively growing, i.e. spring and summer, 
but not when it's droughty. 2,4D or Garlon also work, the latter even 
when it's cold, which is certainly nicer working conditions for 
brush cutting.

The Society for Ecological Restoration is meeting in Austin next 
month. There will be lots of people there to share their war stories 
in the battle against exotics.


James C. Trager
Shaw Arboretum
P.O. Box 38
Gray Summit MO 63039
PH# 314-451-3512
FAX 314-451-5583
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