Weed Control

Fertilizer amounts and weed killers

April 5, 2009
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  Using liquid fertilizer to feed daffodils would appear to be the best way as these plants have simple root systems and by watering in the correct amounts of what…

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Weed Killer Roundup

March 22, 2009
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The experince I have had with weed killers is that they last too long and suppress daffodil growth. I cannot use RoundUp, although the manufacturer says it does not have…

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Preen – trifluralin – root action

March 22, 2009
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Trifluralin is one of the dinitroanilines, a group of Root Inhibitors.   It appears that as germination takes place root growth (and possibly shoot growth) takes a hiding, resulting in spindly…

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Preen – active ingredient – Trifluralin

March 22, 2009
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To Michael, John and All,   Quite a lot of heat has been generated about this chemical. The link provides technical info, too much, but the bit on its use…

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Preen

When is it safe to apply Preen to daff beds? Mike Kuduk Winchester, KY

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Laurens Koster weed killer experiment

March 11, 2009
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Experimenting can be pretty costly. About five years ago there was some discussion about various daffodil growers who had come up with a weak solution of Round-up (Glyphosate) that could…

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