Weed killer that dosnt kill Cacti.

dirtaddshpFebruary 3, 2008

I went to my local garden store and they sold me on this "Ortho Weed B Gon Max" they said it wont hurt my cactus but still kills the weeds.

Before i nuke my whole garden with this stuff. Id like to know if anyone else has done this? All the darn weeds are growing around the spinely cacti so i cant pull them out so i need a chemical.

below is a link to what it is.

http://www.ortho.com/index.cfm/event/ProductGuide.product/documentType/product/category/%2FCategories%2FProducts%2FWeed+Insect+and+Disease+Control%2FLawn+Weed+Control/documentId/72f7d7457a9d7a2f50cd4a25e6a1e49b/cid/287912CC-65BF-F00F-1413-D0D32C14F795/tkn/54017509

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shrubs_n_bulbs(z8/9 UK)

Don't do it.

    Bookmark   February 3, 2008 at 7:13PM
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dirtaddshp

what should i use then?

    Bookmark   February 3, 2008 at 7:52PM
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cactusjordi(z10 CA)

Use it only around one cactus as a test and wait at least half a year (cacti won't show the damage very soon).
But even better, DON'T use it at all!
A long pair of tweezers (or a very long knife) will do the job much more secure for your plants.

Jordi

    Bookmark   February 4, 2008 at 12:44AM
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xerophyte_nyc(7)

Weed killers target specific enzymes utilized by C4 and CAM plants. Most lawn and garden "weeds" can be invasive especially during heat and drought because their metabolism does not suffer. Typical garden plants and grass are standard C3 plants.

But cactus and succulents' metabolism is the same adaptive type as what the chemicals target. They may not succumb as quickly because many succulents have reduced their surface area and hence the chemicals do not have as good penetration.

But weed killers will harm succulents. Don't try them. Just pick out weeds the old-fashioned way - use your fingers.

x

    Bookmark   February 4, 2008 at 8:34AM
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