Ontos Farm in Australia says the flavour of the garlic also depends on soil and climate. The ideal climate is cool with cold winters and no rain after October, our April, during the bulb filling period. Santa Barbara CA climate may be getting a little too warm to grow garlic? Most of this ‘winter’ here has been like summer.
The question was ‘What do you think of bleach as a rust treatment?’
Bleach is safe to use; you can try it. 1/4 c per gallon of water, drench your plant once a day for a week. If that seems to be working, try maintenance applications once a week after that. But. I’m not seeing it referenced online as a rust cure. In fact, I’m not seeing anything where anyone reports success getting rid of rust. Rust is wind-borne and once in your soil, it’s the devil to pay.
I let it be on my large bunch onions. Pulling away infected leaves, I use the remaining central stems, which is all I need. But the reports about garlic are that rust infected plants have stunted dry bulbs. Unfortunately that would be more so as you remove infected leaves, reducing the plant’s ability to grow. More energy goes into survival than production. It might ‘catch up,’ but it takes a long time to grow anyway, so not really worth the wait.
UC Davis has little to say, crop rotation, get rid of infected plants, use a fungicide. What commercial organic growers do is probably the best solution. It’s a strong fungus. DO NOT COMPOST infested plants and spread rust throughout your soil by applying that compost. Maybe sometimes polite, cute or light weight organic remedies work; often they don’t. This is one of the times it doesn’t. When I had cancer I did both alternative stuff and heavy hitting chemo and radiation. It worked. I would put cancer and rust just about in the same category. Neem is probably the toughest of organic remedies I saw mentioned and online reports are it doesn’t work on rust either.
Prevention. Others mention shade and soil issues. Right now our Pilgrim Terrace community gardener Shannon has over 2′ tall garlic with not a speck of rust on them! She makes super prodigious steer manure/alfalfa compost and uses it generously every year. Religion. You can just see there is a lot of soil organism action happening. Her soil is ALIVE! She plants a lot of garlic because her Sweetie loves it. She also gets great okra, another heavy feeder. I would start with your soil. Make it super rich. Don’t be squeamish about manures. Use the righteous potent stuff. Alfalfa is more nutritious than straw, poor man’s alfalfa. Alfalfa is high in nitrogen where straw is really best for aeration as a mulch. Shannon mulches generously with straw, so her plants are being fed from above and below.
Since soil infestation is a problem, just start with new soil each year! Remove entire old beds immediately after harvest if you decide to let your infected plants grow through for the small bulbs. Take that soil somewhere away from where you are planting; spread it out thinly so it will dry out, causing the fungus to die. You could use it as a ‘mulch’ in landscape areas where the fungus won’t hurt those other types of plants, still far, far away from garlic or onion planting areas. Before your new planting time, build new beds with super charged compost. Or if you start 2 or 3 months sooner, you could build compost in place. Thin layers of manures, kitchen green wastes, alfalfa. Throw in some worms and whatever else makes your heart sing!
Garlic The United States is the world’s largest import market for fresh garlic, in 2010 importing 164.4 million pounds of fresh garlic valued at $130 million. and 30,170 MT of dried garlic valued at $32.6 million. China accounted for the majority of total U.S. garlic imports. Being so tasty, and healthy for us, let’s successfully grow our own!