There is no such thing scientifically proven. Quite the opposite, what has been proven is that biological things, particularly microorganisms, adapt very fast to infect things very often, overcoming whatever constraints we try to put on them. Look at antibiotic resistance.
The rust came into my garden on the dwarf Hollyhocks plug plants from someone else's infected garden. They did spread to my roses nearby and then to the others. Most of it all is now cleared except for the tree which my experienced gardener will prune aggressively for this season soon.
I now wash out all plants I buy in a sink or my bathtub first to remove any spores down the drain before planting out.
We have another beach front property and a beach hut with a secluded beach.
I have been recycling garden waste in those £1.50 decomposing sacks that the council picks up, but I did not send any of the rusted material out that way because it infects someone's compost heap. I burned it all carefully in a beach fire.
You're disputing proven scientific fact ... total bananas 🍌🍌🍌
Everything you read on the internet has to be understood in context, which is so often lacking ... that's what you get from the years and years of experience of the gardeners on this forum.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Look at the advice given here, the same as that of my gardener/tree surgeon. I have done all except treatment with any chemicals or herbicides because they are harmful to humans and all garden creatures and little animals.
"All diseased and dead material should be removed at the end of the growing season. The overwintering spores of some rusts are very resilient, so do not compost affected material"
I had been recycling garden waste in those £1.50 decomposing sacks that the council picks up, but I did not send any of the rusted material out that way because it infects someone else's compost heap. I burned it all carefully in a beach fire.
I will skip planting Hollyhocks this season as they, the most vulnerable, can easily pick up rust spores from the soil and allow the fungus to spread again.
I now wash out all plants I buy in a sink or my bathtub first to remove any spores down the drain before planting out.
"some rusts" not all rusts ... you have to know what you're dealing with.
@john.gaskin1 has asked about rust on his birch tree ... a type of Tree Rust about which (in the link posted by @Liriodendron) the RHS says ...
"...
There is normally no need to control these rusts in gardens, because they do little damage
Removal of alternate hosts (see 'biology' section below) may be useful, but only if these are not also found in neighbouring gardens, because the spores are airborne
Destroying fallen leaves in autumn, by burning or composting, may reduce the amount of resting spores available to reinfect next year. This only works if neighbouring gardens do the same, or if the relevant tree is not growing nearby...
You have answered by quoting your treatment of Hollyhock Rust. You might just as well advise the same treatment for a common cold as for Ebola ... both caused by a virus, but needing different treatment.
As Donald Rumsfeld put it "...There are things we know we know. We also know there are known unknowns. That is to say, we know there are some things we do not know. But there are also unknown unknowns, the ones we don't know we don't know."
Inexperience in any field can lead to people thinking they understand more than they do ... a little humility is sometimes the wisest approach.
Liriodendron and Fairygirl are both highly experienced gardeners over many years. Rubbishing their advice is unwise.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
You'd be amazed how many times some scientists have said microorganisms will not adapt to this, will not do that. "This disease will affect only pigs or bats. It cannot jump that species." Only to find out it has jumped the species! I am a scientist who says what Dr. Ian Malcolm said in Jurassic Park: "Life will find a way."
If life finds a way to pick up every fallen leaf from my seven birches, four in grass and three in woodland I'd be interested to hear, but won't be acting on it! "Life is too short."
Posts
The rust came into my garden on the dwarf Hollyhocks plug plants from someone else's infected garden. They did spread to my roses nearby and then to the others. Most of it all is now cleared except for the tree which my experienced gardener will prune aggressively for this season soon.
I now wash out all plants I buy in a sink or my bathtub first to remove any spores down the drain before planting out.
We have another beach front property and a beach hut with a secluded beach.
I have been recycling garden waste in those £1.50 decomposing sacks that the council picks up, but I did not send any of the rusted material out that way because it infects someone's compost heap. I burned it all carefully in a beach fire.
Everything you read on the internet has to be understood in context, which is so often lacking ... that's what you get from the years and years of experience of the gardeners on this forum.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
https://www.lovethegarden.com/uk-en/garden-problem/rust
- "All diseased and dead material should be removed at the end of the growing season. The overwintering spores of some rusts are very resilient, so do not compost affected material"
https://www.rhs.org.uk/advice/profile?pid=756I had been recycling garden waste in those £1.50 decomposing sacks that the council picks up, but I did not send any of the rusted material out that way because it infects someone else's compost heap. I burned it all carefully in a beach fire.
I will skip planting Hollyhocks this season as they, the most vulnerable, can easily pick up rust spores from the soil and allow the fungus to spread again.
I now wash out all plants I buy in a sink or my bathtub first to remove any spores down the drain before planting out.
The query is about Birch. It's unlikely to be a major problem at this point in the year.
I live in west central Scotland - not where that photo is...
The very first sentence of your first link says,
"Whilst rust disease attacks a wide range of plants, it’s important to note that each type of rust is specific to one plant or group of plants."
Your Birch never caught rust from your hollyhocks.
@john.gaskin1 has asked about rust on his birch tree ... a type of Tree Rust about which (in the link posted by @Liriodendron) the RHS says ...
"...
You have answered by quoting your treatment of Hollyhock Rust. You might just as well advise the same treatment for a common cold as for Ebola ... both caused by a virus, but needing different treatment.
As Donald Rumsfeld put it "...There are things we know we know. We also know there are known unknowns. That is to say, we know there are some things we do not know. But there are also unknown unknowns, the ones we don't know we don't know."
Inexperience in any field can lead to people thinking they understand more than they do ... a little humility is sometimes the wisest approach.
Liriodendron and Fairygirl are both highly experienced gardeners over many years. Rubbishing their advice is unwise.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
"Life is too short."