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strim before weedkilling?

I have been asked to weed kill quite a large area on gravel. Some if the weeds are quite large so i was wondering if strimming first would be usefull. If weedkilled straight after would this improve the absprbtion of weedkiller thrpugh the stems or is it best to not strim as there will be more leaves to absprb. Help please.

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  • It will work either way. Question is - would you be wise to strim weeds in gravel? The only point in trying to cut down some of the weed growth would be to minimise the visual impact of them while dying down.

    Unless this is mares tail you're talking about?

  • Unless it's really tall and difficult to walk through I wouldn't bother. Only a small bit needs to make contact for it to be effective. Especially if you use roundup 450
  • Thanks. It isnt mares tail. I understand strimming near gravel can be dangerous but i was thinking of strimming the weeds to halfway. I guess i may just weedkill then.
  • If the weeds are that large and your going to 'double handle' them would it be worth just pulling them by hand? I have had a similar situation and I just went through quickly pulling the big ones then sprayed the rest. I found if faster and reduced amount of chemical needed.
  • Agree, assuming pulling the tall weeds will bring the root out, otherwise leave them in and spray the lot, assuming no overspray will affect nearby borders, lawns,etc., as windy conditions will carry it!

    Green Hand said:
    If the weeds are that large and your going to 'double handle' them would it be worth just pulling them by hand? I have had a similar situation and I just went through quickly pulling the big ones then sprayed the rest. I found if faster and reduced amount of chemical needed.
  • If you need to, rather than strim I'd use a hedgecutter for tall weeds on gravel. Long-reach on a harness is easy work, and the blades can be kept well away from the stones.

  • Good call Paul, I've done the same thing before now. I'd pull the monster weeds by hand first though as someone else has said.

  • PRO Supplier

    Agree with all the above - hand pull the monsters (if soil is soft enough) then spray rest

    Before life in an office I had some commercial sites that were monthly visits and hedge trimming/ strimming weeds then spraying was the norm in peak season. Just leave enough leaf surface area for the glyphosate to enter the plant in sufficient quantities. Unless it has a hollow stem (large sowthistles, etc...) then you get almost zero result from herbicides sprayed onto the cut bare stem

    As long as its warm & wet enough for growth then its suitable for spraying most weeds..

  • The only reason to strim would be if you spray & get covered in chemical or you will not reach weeds below tall foliage.

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