Canna virus 101
Вставка
- Опубліковано 22 сер 2024
- If you enjoy my content and would like me to make my channel even better then consider donating here: mercury.stream...
Explaining what canna virus is, what it looks like, how cannas get it and how it spreads.
Very good sugestions
Serious pest damage in early frames of green leaf variety. Rows of holes or "stitching" suggests canna leaf rollers
that's caused by slugs and snails here
Good video, except the info on purple/variagated cannas, they pruduce seed which can be grown just as easily as the green varieties.
All the types like Durban and Sturgart do not produce viable seeds
Canna ask you question? ( I'll get me coat). Famously, the tulip speculation that happened in the late 1600s brought down the Dutch economy. But did you know that it wasn't botany that brought down Holland, it was virology? The thing that sent speculators into despair wasn't a flower, but a virus.
Tulip speculation was rampant in Holland in the 1600s. Brought over from Asia Minor, the flowers enlivened the Dutch landscape. They were sought after just at a time when money was pouring in to the Dutch economy, preparing people to spend their new found wealth on silly things. Prices climbed high and fast, and entire businesses were sold or traded at auction for a single bulb. Anything that gave people the opportunity to make money in a single transaction was valuable in and of itself, so tulip bulbs became a sensible thing to speculate on, right up until they weren't. Suddenly people realized that they didn't have the intrinsic value that everyone seemed to believe they did, and prices collapsed. Everyone old enough to read this has seen a crash or two in their time, so we can't look on with too much smug superiority.
Well, maybe a little. After all, they're just tulips. They can't do anything except make more tulips, which should, if anything bring the price of tulips down. There doesn't seem to be a reason for that kind of price range.
It turns out, though, that there was something that turned tulips into gold. Some tulips turned out to have a special quality that sent their worth through the roof. Some tulips, for no apparent reason, erupted from a solid color into a swirled, feathery bloom that was incredibly exotic and beautiful. No one seemed to know why any single bulb did this, and no one was able to establish a pattern for the change. The trade turned from an exchange of pricey luxury items to speculating on eagle eggs, on the understanding that sometimes, for no readily apparent reason, an egg hatched a griffin instead of an eagle.
But there was a reason, and it was called the Tulip Breaking Virus, or mosaic virus. It was transmitted either by contact with the bulb of an infected tulip or by different species of aphids. It changes pigmentation by affecting the distribution of anthocyanin, a pigment that can appear different colors depending on the pH of its area.
Of course, since that wasn't known at the time, the Dutch dumped everything from pigeon droppings to dish water on their bulbs, all the while keeping prized bulbs away from the aphids or the other tulips which might actually have gotten them to break.
Sadly, the virus did what viruses generally do - it killed the tulip after a few blooming seasons, driving up the price for a newly-broken bulb even higher. The virus turned tulips into lottery tickets , and so it was understandable that people paid too much for them. "Semper Augustus" was famous for being the most expensive bulb sold during the period. It cost 13000 florins, at a time when one could get a house and garden for a third of that price. But the rampant speculation one which bulb was a winner, mocked even at the time, could only be kept up for so long. The economy collapsed, and what caused tulips to break remained a mystery until the 1900s.
The Tulip Breaking Virus is one of the many four viruses that cause flower 'breaking' that are still around today, with other strains affecting lilies. Gardeners now are cautioned to watch for these once-priceless flowers, and carefully weed them out of any gardens. Since the collapse of tulip speculation and the rise of tulip agriculture, botanists have selectively bred 'Rembrandt Tulips,' which mimic the swirled colors of breaking - without the degenerative virus. The name comes from the famous Dutch painter, since many owners of broken tulips would pay artists to make permanent copies of their fragile purchases. The paintings, of course, tend to be the priceless things now.
I’ve just find out that my cannas bought from bq this year have the virus thanks to you. I’m gathered ;(Great video thanks!
Yes, it's frustrating but they almost always are from diy places.
Amo essa planta , gostaria de saber se tem outras cores além de amarela e vermelha???😍
Sim, tenho uns laranja e roxos.
Many reds, I have Black Knights which have dark brownish/olive leaves & orange/reddish birds hot flowers, huge red round flowered ones & the fire engine red torchiere birds hot. I have apricot birdshot, pink birds hot, Cleopatra, with every flower is red & yellow with black & green striated leaves, orange & yellow King Humberts. A flourescent orange birdshot as well.
Some of my leaves have developed large brown patches over night. It doesn't look dry or scorched, burner or overwatered. What is it?
It could just be lack or light and going dormant now that it's winter.
@@YorkshireKRIS I should clarify. I'm in Australia and it's summer now. It's got direct light all day. It has been raining helps the last 3 days. Mine are potted.
@@CThienV it's really hard to say without seeing it but if not burn then it could be a fungal disease
No, it's not known in bananas
can this happen on bananas
Yes it can. Bananas can also suffer from similar virus. The first Musa Basjoo I purchased had a viral infection similar in appearance to Canna yellow streak virus. The plant remained stunted and was destroyed. There are a number of diseases associated with Bananas. As with Cannas, Banana virus is spread through some aphids and a lack of hygiene