Allotments 4 All
Produce => Edible Plants => Topic started by: laurieuk on July 04, 2016, 15:16:00
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I was unable to get any crop from previous onion plantings due to white rot but after reading about using garlic powder this is my crop so fer this year, all I need is some sunshine to help ripen the bulbs up.
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Nice crop mate. :icon_cheers:
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At what rate did you apply the garlic powder?
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Great result :wave:
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Must try this I never seem to be organised enough at the right time. You have a great trip there Laurie.
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Hi Ya, Good result Laurieuk, I bet you are well pleased. I remember reading about a trial being carried out with garlic powder and watering onto your onion ground before planting. I would like more onfromation from you with regards as to where you got yur information. I have bought some garlic powder but haven't been able to find the article I was reading so any advice or help you can give would be most appreciated. Cheers
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d**n they look fine. My overwintered ones all died off, my sets all got eaten by something and my onions from seed look terrible - all curly or fallen over. I seem to have completely lost the knack of growing good onions from set or from seed. Is it possible to over manure for onions - too much nitrogen?
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Hi Ya, Good result Laurieuk, I bet you are well pleased. I remember reading about a trial being carried out with garlic powder and watering onto your onion ground before planting. I would like more onfromation from you with regards as to where you got yur information. I have bought some garlic powder but haven't been able to find the article I was reading so any advice or help you can give would be most appreciated. Cheers
http://www.growyourown.info/page173.html gives the details and rate of application
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I have tried the garlic water before with no good results so last aurum as soon as I lifted the crop and whilst the soil was still warm I used garlic powder that is produces for horses really. I used a 500g container at the cost of £2.45. I used the whole tub so cost was very little . I do think getting the powder on as soon as possible is important also never to walk on other areas then back onto my ono bed. The onions were grown from sets planted in February between rain showers. I intend to repeat the treatment this year as well to try and make sure of future crops.
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What area was the 500g spread over?
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ive had the same success myself last year i got 10 bulbs of garlic out of 40 planted and lost all my onions
this year i have 100% success on garlic and my shallots are still in growing at the minute zebrune from seed
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Hi Ya, from reading this post with extreme inerest I gather that it is better to apply the powder direct tham diluting it and using a watreing can. I have read that 30g per sq metre is the amount. I will be giving it a go definately this year and was pleased to see it can be applied in the autumn. I will do my onion bed and grow my sets and seed in the same bed next year and see how we go. Great and any more tips are most welcome.
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I do believe that it is important to use the powder as soon after lifting as possible to germinate and kill the spores left behind when you lift. I aimed at 30 g / sq.m .I rake the surface after applying the powder to try and make sure the whole area is covered. Wen I tried garlic water I got no results at all.
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Thanks for all the info Laurie, most useful.
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Hi Ya, thanks for the tips Laurieuk. I will definately give it a go. I tried dilution last year as i read that watering it in then work the soil and water again would do it. I will use 30g per metre ish and hopefully be on the mend. I admit that the rot I am suffering this year is not as bad but that could be down to the weather for being that bit colder. I do wonder how long to take effect as I think of over wintering onions as mine got rot this year. I suppose you could always apply it water it after raking then place polythene over to warm it up. I never thought I would be doing biological warfare in my garden when I started growing veg but there you go. Thanks for help and advice
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It's so heartening to see that this method is working for people! I will definitely be getting some garlic powder for next years alliums.
You can get 5kg tubs of the stuff from equestrian suppliers and farm supply shops for under £20 so it won't break the bank!
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I'll try this next year as have just had to dig up all my garlic :( Thanks for sharing this :)
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Hi Ya, Well I have set the ball in motion and sprinkled the powder roughly as said and raked it into the surface. Luckily we had some rain that will wash it into the soil. Do you apply compost to the surface only and not dig it in. I feel as onions are shallow rooted digging could bring more white rot to the surface. A light fork over may be the way I feel. What do you think/do Laurieuk? I have read to treat the area then dig and treat again but this is all new territory to me. Happy days
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I apply the powder as soon as I lift the onions , rake just to make sure the whole surface is covered. I then leave the area until the early spring when I dig in compost, well rotted manure or spent hops , I apply fertilizer Vitax Q4 before planting. I have never thought of onions being shallow rooting but we all do things different. Before I ran into white rot I used to double dig my onion bed.
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So from what I understand - the powder needs to be applied to the bed that's going to be used for onion family next year. The application needs to be made and incorporated in to the soil for a period of time when the conditions are right for the spores to become activated (warm and wet).
I'm not the kind of allotmenter that lets my beds end up empty for half the year - would there be any harm in treating the ground I intend to plant my garlic in November and then putting a quick autumn crop of something like beetroots in to cover the area to keep the ground covered?
It doesn't seem like it should interfere with the treatment.
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This would mean walking about on the soil which has the danger of introducing spores from other areas, but as I always say I am not necessary right it is just my way of doing things.
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Thanks laurieuk ... my beds are arranged so I never walk on them - only on the paths (not exactly no-dig but definitely no-walk!) so I think I'll give it a go.
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Hi Ya, I will follow your advice Laurieuk and se what occurs. I say onions are shallow rooted as when I lift mine the roots only seem to go 2 to 3 inches down unlike some plant that go 12 or more. This made m,e think the spores maybe in the surface but you dig so will I. Cheers for the advice.
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I've bought a tub of garlic powder. Laurie, if I understood you correctly....put powder on as soon as I lift my alliums. Does this mean you don't rotate them?
Have you ever tried preventative lay on a bed that you haven't had onions in....doing this prior to a later crop of alliums?
Thanks for this
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Hector, you should be treating the bed you are going to plant in next season, not the bed you harvested from this year!
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Hi Ya, I lifted my summer onions yeserday and though I used garlic water last year still the rot is around though I must admit it seems less. The dry weather could of played a part. I will treat the onion bed and use the same bed and treat it as advised by Laurieuk. I wondered where you get your garle powder as I have seen it for £1 for 50g, and paid £3.45 for 1kg. It does seem a bit pricey so any advice would be welcome. Happy gardening
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Hector, you should be treating the bed you are going to plant in next season, not the bed you harvested from this year!
Sorry me being vague, I think.
I'm asking if
a. You treat as soon as you lift with this years bed....so you can potentially use same bed next year for alliums ( not rotate)
B. Can you also use in a new bed prior to planting as preventative and if you don't know if onions there before
Thanks :)
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Hi Hector, You are certainly Correct in "B". Uncertain about "A". as the fungi is probably still active, and there will still be exudates from this years crop in the soil.
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Lezelle, if that price includes transport, then you've got a bargain. Who is the supplier?
Best I can find is Eqimins. £23.94 for 5kg delivered.
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https://www.amazon.co.uk/dp/B00792F3P4/ref=pe_1909131_77697001_tnp_email_TE_AMZLdp_1
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Thanks Hector. 60p/kg cheaper, although I prefer the powder as I think you get faster distribution into the soil when it rains.
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I just used this method yesterday on the bed I plan to plant my garlic in next year. It hasn't actually had anything from the onion family in it since I took on the allotment nearly 5 years ago ... but the white rot seems to be endemic on my plot - turning up anywhere I grow onions or garlic if the conditions are right!
I too bought a tub of the very fine garlic powder (tough to administer on a windy day as it goes everywhere) - and I spread a little more thickly than laurieuk did. and just forked it in to the first couple of inches - applied a final dusting to the top and wait for this rain to do it's job of working it in to the soil. I plan to do the same for my onion bed once I've worked out where that's going to be next year!
Although I'm giving this a try - I am a cynic and wonder whether the conditions have been unfavourable to white rot this year ... I only say this as I haven't heard of anyone having an absolute disaster with their crop yet whether they applied garlic water/powder or not.
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Sorry I have been offline for a while but let me clear a few points. I have used the same plot for my onions since I found I had white rot. I treat as soon as possible after lifting. I do not rotate and even when I was in service I kept the same plot for 14 years for my onions. I think powder is better than using liquid but please these are my own thoughts. I use horse garlic powder which I find using google.
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Hi Ya, Well I treated my onion bed as advised by Laurieuk and have planted my over winter onion sets. They are showing well so hopefully I will see some results in the summers. I am considering treating another area for summer onions but think it may be a bit late so will use same bed again this time and treat another in the spring time when all warms up again. I am feeling pretty confident but time will tell. Happy Gardening
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Just come across this. Very intrigued. I grow a lot of alliums (something of a staple crop) but have started to suffer from what is almost certainly white rot in my veg garden. Not everywhere yet so there is hope. Onions, shallots and garlic i can get a reasonable crop from (from sets) but cant seem to suceeed with leeks or spring onions (from seed). So anything that can help i am keen to try.
Whats the best source of garlic powder? Supermarkets and heath food places do it but it looks pricey bought that way. Horse Garlic Powder looks the best cost wise i suppose. I am surprised the gardening industry hasnt caught onto this and started supplying it to gardeners if it works.
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I buy my powder online £2.45 500 g which does my onion bed. There seems to be 2 separate posts going on A4A at the moment. I am getting questions on both sites.
I put photos of my crop on A4A on July 4th and have had many questions since then.
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Sorry have just realized this is the same site but further on, it is getting the same questions that threw me.
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Hi Ya All, Well my over winter onions are in and showing well. 2 rows of red and 2 of white. Hopefully this garlic tip will work. Thanks for the show and all the work you have put into this post laurieuk a very helpful and interesting post. I was wondering how your crop turned out this year? I bet you are well pleased if the initial photos are anything to go by. Did you take any more though the season I wonder. I have only seen this post on white rot so far. I picked up on it as I saw it when you first log on in the home page. Thanks mate and Happy gardening
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I am not sure how this works but if you have see these already I am sorry. These onions are this years crop I the ground and at the local show where I won the trphy for best onions.
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:icon_cheers: and well deserved Laurieuk. Congratulations!
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Well done Laurie :hello2:
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Hi Ya, Nice one laurieuk, I hope mine are as ghood. Well done and I bet you are well pleased. :blob7:
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Hi Ya, In conversation with a colleague from over the way in Norfolk and some 60 miles from me asked why I had the bag of garlic powder. I mentioned the dreaded white rot in onions and he told me that a farmer by them uses garlic on his Fields every year. he said it smells for weeks but this farmer grows onions on the fields every year. So it must be a good omen to hear that the professional people use it and well done to laurieuk for bringing it to our attention. I have also heard about using the garlic spray to deter white fly on cabbage. Could be a help as white fly are in their millions here.
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I had white rot the first year on my new allotment not used that bed since but my problem is neck rot not sure if it is due to the same problem ie spores in the soil
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Hi Ya, I think neck rot is something else and I did hear on an allotment programme that bull neck, as they called it which could lead to neck rot, was down to to much compost being fed to the plants. I am not sure how true this is so more research needed.
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Hi I am interested to see this also, as I have onion white rot on my plot. I bought some garlic powder this year, but haven't had the chance to use it. Sometimes you think you have got away with it, as the onions look okay when they are growing, but when you dig them up is when you can see the damage. For the past two years I have dug the soil out of a bed and lined it and put fresh compost on it. I also sterilise all my tools, it has worked so far, but it would be so good to not have to do this. I will certainly try the garlic powder test when I dig up my overwintering onions next year. Keep in touch and let us know how these ones do. Would be brilliant if this was the solution. Thanks, busy_lizzie :icon_cheers:
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I also need a really bad year to trigger the motivation to use garlic powder.
Part of that problem is that I always tug at any onions that sow the slightest yellow at the tips - if it comes out it is usually white rot so I cut the bottom off before it spreads from the root 'crown' to the onion layers and use them immediately - preferably the same day as spring onions.
Cheers.