Allotment Gardening Advice Help Chat
Growing => Grow Your Own => Topic started by: m1ckz on July 17, 2016, 19:26
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again onions rotted no where else on the plot to try sooo im gona put some jeyes fluid on an overwinter it an try there again in spring a last resort
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Please note that using Jeyes on soil is illegal, aside from it killing all the good stuff like worms and bugs.
The forum cannot recommend its use for this purpose.
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What do Farmers & professional growers do if they have WR?
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What do Farmers & professional growers do if they have WR?
Not sure, but Jeyes Fluid is extremely toxic to many types of plant and animal life and is banned for use as a soil steriliser, so it won't be that.
If they use any kind of professional only use fungicide, it is not really relevant to home growers. They also have scope to switch to an alternative crop and leave an infected field free of allium crops for years if need be.
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Try treating next year's (or rather the year after next) onion patch with crushed garlic watered on. I do and it's reasonably effective.
It's not allowed by the EU as it's not had billions of pounds invested into testing it, but Hey Ho :)
SCLEROTIA GERMINATION STIMULANTS
Sclerotia germination stimulants are extremely effective in reducing the numbers (and initial inoculum) of sclerotia in the soil. They can reduce numbers of sclerotia in the soil by over 90%. The active ingredient is the chemical diallyl disulfide (DADS,) which is the same chemical that is naturally exuded by Allium roots. This chemical triggers sclerotia to germinate. When DADS is applied artificially in the field in the absence of Alliums, sclerotia germinate and cannot find an Allium host. This causes them to germinate and die, rather than lying dormant. DADS is available as a commercial product, called Alli-up. Garlic oil/extract (which also contains DADS) is also equally effective. DADS (in the form of either Alli-up or garlic oil) is applied at the rate of 1 gallon per acre in a fallow f ield. It is essential to shank-apply DADS during cool weather in moist soil. Otherwise, the sulfur compounds will volatilize and the application will be ineffective. There can be no Alliums planted in the treated area for at least a year after application. However, it’s fine to grow other crops, such as wheat, corn, etc. during the one year Allium-free period. After this period, Allium crops can be grown again.
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Try treating next year's (or rather the year after next) onion patch with crushed garlic watered on. I do and it's reasonably effective.
It's not allowed by the EU as it's not had billions of pounds invested into testing it, but Hey Ho :)
SCLEROTIA GERMINATION STIMULANTS
Sclerotia germination stimulants are extremely effective in reducing the numbers (and initial inoculum) of sclerotia in the soil. They can reduce numbers of sclerotia in the soil by over 90%. The active ingredient is the chemical diallyl disulfide (DADS,) which is the same chemical that is naturally exuded by Allium roots. This chemical triggers sclerotia to germinate. When DADS is applied artificially in the field in the absence of Alliums, sclerotia germinate and cannot find an Allium host. This causes them to germinate and die, rather than lying dormant. DADS is available as a commercial product, called Alli-up. Garlic oil/extract (which also contains DADS) is also equally effective. DADS (in the form of either Alli-up or garlic oil) is applied at the rate of 1 gallon per acre in a fallow f ield. It is essential to shank-apply DADS during cool weather in moist soil. Otherwise, the sulfur compounds will volatilize and the application will be ineffective. There can be no Alliums planted in the treated area for at least a year after application. However, it’s fine to grow other crops, such as wheat, corn, etc. during the one year Allium-free period. After this period, Allium crops can be grown again.
Thanks for that, I've just lost all my garlic again to white rot and I'd made my mind up to never try again. I'll give the crushed garlic a go. When would be the best time to apply the solution, the bed is empty now.
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There are more instructions for the method here, hope it helps.
http://chat.allotment-garden.org/index.php?topic=79223.msg891034#msg891034
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Try treating next year's (or rather the year after next) onion patch with crushed garlic watered on. I do and it's reasonably effective.
It's not allowed by the EU as it's not had billions of pounds invested into testing it, but Hey Ho :)
SCLEROTIA GERMINATION STIMULANTS
Sclerotia germination stimulants are extremely effective in reducing the numbers (and initial inoculum) of sclerotia in the soil. They can reduce numbers of sclerotia in the soil by over 90%. The active ingredient is the chemical diallyl disulfide (DADS,) which is the same chemical that is naturally exuded by Allium roots. This chemical triggers sclerotia to germinate. When DADS is applied artificially in the field in the absence of Alliums, sclerotia germinate and cannot find an Allium host. This causes them to germinate and die, rather than lying dormant. DADS is available as a commercial product, called Alli-up. Garlic oil/extract (which also contains DADS) is also equally effective. DADS (in the form of either Alli-up or garlic oil) is applied at the rate of 1 gallon per acre in a fallow f ield. It is essential to shank-apply DADS during cool weather in moist soil. Otherwise, the sulfur compounds will volatilize and the application will be ineffective. There can be no Alliums planted in the treated area for at least a year after application. However, it’s fine to grow other crops, such as wheat, corn, etc. during the one year Allium-free period. After this period, Allium crops can be grown again.
My suggestion is the same Auntys, crushed garlic watered in the bed the the year before planting.
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Beechgrove Garden last week talked to a farmer who sprayed garlic granules over his carrots to deter carrot fly. Did it every 2 weeks. He did not say whether it was approved.
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Beechgrove Garden last week talked to a farmer who sprayed garlic granules over his carrots to deter carrot fly. Did it every 2 weeks. He did not say whether it was approved.
Well if anyone asks, you are spraying it as a plant tonic or watering it in as a soil tonic ;)
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There is not a cure even for farmers.
They will use garlic water for up to 4 years before planting, temp of soil needs to be a min 8. It tricks the spores into production and so die.
Yours have probably been infected bulbs. I had it with garlic which comes from Parkers, so locally grown. I also had some on the shallots.
It is transported via shoes. If it is all over the plot, try leaving garlic/onions/chives for a couple of years using garlic water and buy certified stock only.