Non Chemical Weed Control
Lauw de Jager (Sun, 09 Nov 2003 10:39:08 PST)

Ken and forum members,
I very much appreciated Ken's intervention as it coincides well m with my
nursery experien
ce. Simazin and Casoron are in my opinion too harsh. The more re ommended
chemicls are CPIC (chlorpropham) in combination with Goltix (metamitron).
Allways preceded with contact herbicides (Paraquat or Glyphosate) during
the domant season and a last treatment just before emergence. For large
cale cultivation I could not go without the use of pre emergent chemicals.
But there are other means to ruce the weed population:
Especially for the summer growers I have drastically reduced the
frequency of irrigation, without a noticable reduction in growth and
resulted in far less weeds. The use of drip irrigation tubes positioned
under the mulch has been interesting improvement for Cannas, Crinum,
Hedychium, Dahlias and other summer growers (2 drip tubes on a 110cm(50")
wide bed.
Also a general use of a thick layer of mulch has very much reduced weed
growth. Both for summergrowers and winter growers; in some cases in the open
ground (and in allcases in containers) I use 1- 2cm of gravel mulch.
Of course as Ken also stated, thereis also some had left to do, butit
remains acceptable this way
Regards from France (where we have just finished getting our remaining
stock into the ground)

Lauw de Jager
http://www.bulb'argence.com/
South of France (zone 8 Olivier)

le 9/11/03 4:04, Kenneth Hixson à khixson@nu-world.com a écrit :
As a followup to the pre-emergent weed control discussion, some of the

Lauw de Jager
Bulb'Argence