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Re: [Market-farming] Effective control of Galinsoga
- From: Brian <bcluton AT aol.com>
- To: Market Farming <market-farming AT lists.ibiblio.org>
- Cc: Market Farming <market-farming AT lists.ibiblio.org>
- Subject: Re: [Market-farming] Effective control of Galinsoga
- Date: Mon, 24 Oct 2011 11:11:21 -0400
Hi Andy I've always associated Galinsoga with excess fertility as it always seems to be a compost and manure pile weed. It's also reputed to thrive in soils low in Calcium, which would also support the excess/imbalanced nutrients principle Manure, compost, presumably mulches and peat bring in and/or by decomposition can drive up potassium particularly on lighter soils. And I've read that Potassium levels in excess can interfere with calcium availability. So the two seem to support each other. This makes some sense to me because I've seen Galinsoga pop up in areas that inadvertently received excess compost and also have found it to pop up in areas where during plowing heavy cover crops we bunched up and dragged a pile of material. This pile is likely excessively made up of cover crop material with soil mixed in the out of whack decomposition seems to encourage high fertility weeds in that spot in spite of the fact that at least temporarily there is likely nitrogen sequestration going. So maybe it goes back to the potassium excess interfering with calcium. Who knows?! Regardless what the soil cultural factors are once there's seeds in the reservoir something needs to happen on the direct management end. Cultivating and a bare fallow during the first flush when seedlings are small would help. Deep burial with the mold board could help to. It's seeds are said to have fairly short viability so burial and then subsequent shallow working for cash crops might help. Definitely a weeding intensive weed and a pain that requires physical intervention but I wouldn't discount looking into the soil at the foundation. It's here and there around the farm but really only bad in the areas I've mentioned. We manage most fertility with cover crops and are blessed(and cursed) with stoney soil that tends to be high in calcium so perhaps there is something to be said of the soil balancing approach. Brian Stonesthrowfarm.biz
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[Market-farming] Effective control of Galinsoga,
Andy Fellenz, 10/22/2011
- Re: [Market-farming] Effective control of Galinsoga, Beth Spaugh, 10/22/2011
- <Possible follow-up(s)>
- Re: [Market-farming] Effective control of Galinsoga, Steve Gilman, 10/23/2011
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Re: [Market-farming] Effective control of Galinsoga,
Charlie Cameron, 10/23/2011
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Re: [Market-farming] Effective control of Galinsoga,
MAsteveINE, 10/24/2011
- Re: [Market-farming] Effective control of Galinsoga, Roots Farm, 10/24/2011
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Re: [Market-farming] Effective control of Galinsoga,
MAsteveINE, 10/24/2011
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Re: [Market-farming] Effective control of Galinsoga,
sunnfarm, 10/24/2011
- Re: [Market-farming] Effective control of Galinsoga, Brian, 10/24/2011
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