In article ,
Janet Baraclough writes:
| The message
| from K contains these words:
|
| Are you sure of that? exactly half?
| There is rarely a linear relationship between dosage and effectiveness.
| Round-up (dimethoate) is a systemic which is transported through the
| plant for action - increasing the dose can make it *less* effective, so
| it is conceivable tht there are situations where a lower dose will make
| it *more* effetive.
|
| I was recently at a talk by the head gardener of a very famous
| English garden. During question time, he recommended using glyphosate at
| half strength, which he said is just as effective for half the cost.

MORE effective. With ground elder and bindweed, I find that full strength
just burns the leaves off. Half strength works a lot better.


Regards,
Nick Maclaren.