Onions and White Rot: Have I Discovered the Secret to Growing White Rot Free Onions?
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- เผยแพร่เมื่อ 9 ก.ย. 2024
- Onions and White Rot: Have I Discovered the Secret to Growing White Rot Free Onions?
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Great harvest. I grow red barron from seed in late feb/ early March, popped them out in mid april in a bed i added 4 inches of well rotted manure, and 4 inches of home made compost to, and they are enormous - bigger than a softball easily 6" accross. I grow senshyu yellows from over wintering sets and they are always brilliant. I got white rot at the old plot, and i just emptied the bed of compost down about a foot (i ended up using it in flower beds at home) and re filled it - no more white rot in that bed the next year.
From what I'm reading about this condition, this white rot, heat treating either seeds or sets won't help much in the long run as the causative organism can lie dormant in the soil for at least fifteen years, as others have said. (One source which is not an individual person says up to 40 [forty] years, which I find disheartening.)
So far, I haven't had to deal with it, thank Heaven and touch wood!
Because the disease can remain dormant in the soil for so long, it's possible to infect beds by bringing soil in and applying it.
The University of California IPM (Integrated Pest Management) and ANR (Agriculture and Natural Resources) says that if white rot has been a recent problem, applying a six-inch band of a fungicide over the planting trench *immediately before planting* will provide effective control.
I realize that for anyone gardening organically, fungicides can be problematic.
I do trust that UC IPM/ANR knows their stuff simply because the State of California produces something like one-third of all of the food grown in the U.S., so when one speaks of agriculture or BigAg[riculture], in California it is a big, big business.
There are alternatives, explained in this article:
rvpadmin.cce.cornell.edu/uploads/doc_480.pdf
I'm wishing you good success in controlling or even eradicating this problem!
Much gardening love from Northeast Ohio, U.S.A. 😊💚💚💚💚💚😊
Tony you’ve done it again. Touching onions with potential white rot (a fungal disease) then without washing your hands, touching the next bed with your white onions. You have to start thinking like a surgeon! 😂
😂
back in the day the old boys (and my dad) used to water the beds with Armillartox and that seemed to do the business but they've changed the formulae and its no longer any good (I don't think). Also if you look on Victoriana nursery they had a Mustard seed that you sow and then you cut it down and cover it over with a plastic sheet and as it breaks down it releases a gas that works as a fumigant/steriliser and the plant breaks down and works as a green manure...might be worth a look.
Tony, you old prep and freeze yor onions for long term storage. Happy gardening :-)
My onions are small but firm and strong so I’m OK with my harvest, first time having any success growing from seed. Those red ones of yours are pretty good. Chopped and frozen and you have them all year.
Heat treated set's stops them bolting as red are buggers to bolt I don't think it stops them getting rot tony 🤔 , grew my reds from seed lifted them this week all brilliant well pleased
I gave up and started growing garlic in pots with safe soil.
Hi, if the garlic isn't affected with onion rot, why don't you grow the white onions by them next year. Also, as the onions grow, make a garlic water drink for the white onions?? Just a thought.
For a few years now I plant onion set in November and they are out by early June no problems love the video
I'd be delighted to get a bumper harvest like you've got there Tony ! Well done ! I,ve almost given up growing onions .I took mine up a bit early , couldn't risk losing them . They are now all chopped up and put in the freezer . I prefer to grow leeks instead .🌿
I'm sowing augusta next week ..not grown them before but they are large overwintering onions
Not had the white rot problem, so I don't know if this works, but I have read to water the beds with Garlic / Onion "juice". The idea seems to be to encourage the white rot to "germinate", it then doesn't find anything to grow /reproduce on, so (over time) it gets weaker and will die out. More quickly then "just don't plant Onions" maybe? but no idea how long ...
Hi Tony, it's,a,shame gettimg oinion white rot. I dont suffer from it but do get rust on my leeks,& garlic every year. I still grow them but have.to freeze them all when I harvest. Thanks for sharing and take care 😊
I only grow white onions, never had any rot issues, theyve always been great. This year Lincolnshire has had hardly any sun till the last month my crop has only grown to half size 😞....why is that.?
An open top bus where you are Tony that's optimistic
Onions YAY 👏👏👏👏👏👏👏
I lost all my onions too onion rot my red onions were first from seed then my spring onions then my white onions from seed just don't know what to do do I give up growing them don't want spread it to all my raised bed and long does it take to get rid of it ?? It's so disheartening maybe you good say in one of your videos cheers kenny
onion white rot can persist for 15 years and you can easily contaminate areas there wasn't any with tools or crop rotation, maybe grow a few in fresh soil in those potato pots you have. the fungus can infect a bed for decades or at least 10. glad you got some crop, picking them early is key, same goes for leeks and garlic
I thought you can only download onions in the same place twice then,, as I was told,, you'd give the area a 20 year break what's true also Tony can you freeze them in a stir-fry mix?
What happened to potty mouth, did you record it earlier and delete it, perhaps you should do it live like Audrey every Wednesday.
Try toughball f1 overwinter harvest june time store well enough poss avoid rot and gets beds clear for more crops