Herbicides are chemicals used to kill plants.

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221 views

Glyphosate (Roundup) effectiveness and rain

Yesterday I used around 3 litres of glyphosate (generic roundup) around my garden. It was in the evening around 6pm. This morning I woke to the sound of rain. Will the rain have diluted the ...
5
votes
1answer
327 views

Should I be using pre-emergent or post-emergent herbicide?

The air temperature is in the mid 60s, and already the weeds started to germinate. Is this a good time to spray a pre-emergent herbicide or is it too late? Should I apply a post-emergent herbicide ...
5
votes
1answer
112 views

Should I use Roundup in irrigation ditches?

If I use Roundup to keep weeds and grass out of the irrigation ditches that bring water to my vegetable garden, will it end up washing downstream and killing my vegetables? Also, will it harm my ...
6
votes
1answer
102 views

How do I prepare and sow a lawn organically?

Sowing a lawn organically seems to have 2 problems that need solving: Killing the weeds prior to sowing Avoiding weed growth after sowing Once the soil is levelled, I'm considering trying the ...
6
votes
2answers
290 views

Natural herbicide to kill weeds in a hard landscape environment?

I've got some weeds growing up between the flagstones in our backyard -- is there something natural and okay environmentally that I can use to kill the weeds? Obviously, I don't want anything growing ...
8
votes
1answer
216 views

How to prevent regrowth of elm saplings from concrete foundation?

At the base of our old garage where the concrete foundation meets an asphalt slope down to the alley behind, we've had small elm tree saplings grow as weeds over the past three years. I've never ...
6
votes
1answer
731 views

Will over spray from Ortho Weed-B-Gon Max kill my flowers?

I was spraying some Ortho Weed-B-Gon Max on my lawn, and some of the mist/over-spray got in and around my flower bed (on flowers). Are my flowers doomed, or is there still hope that they will live ...
6
votes
2answers
368 views

Good selective herbicide?

I bought a house 2 years ago in San Francisco where the yard had been allowed to do whatever it pleased. Now I have an amazing mix of clover, weeds and grass throughout the entire yard. Is there a ...
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1answer
659 views

How long before poisons like Round-up become inert?

If I spray some grass with a poison like Round-up or Kills All, how long before that spray is not dangerous to plants? So for example, if after spraying, I walk through the sprayed area and then onto ...