Some of my lilies have the classic signs of Botrytis so I sprayed them and ALL my others with the same systemic fungicide I use on all my roses. That being Bayer Advanced Desease Control. They have received at least three spraying but are now much worse, yellow leaves, not only just brown spots.
What should I be straying them with? Do I need to yank them? I'd really hate to have to pull them up. we have had soooooo much rain this spring.
Thanks.
What Should I spray for Botrytis?
Oh no, don't yank them. I'm not familiar with that particular product but it sounds like it ought to do the job. Sometimes with so much rain you just can't help it. At worst, if the whole stems dies back it should still come back next year. Though 2 years in a row can do it in.
Good air circulation is your best friend.
I didn't have any problems last year and it was a rainey spring. But not like this year. I can't remember when there has been so much rain. Anyway, last year I never had to spray my lilies. This year when I saw the Botrytis I just figgured I would spray and that would take care of it but it didn't. As a precaution I now spray all my lilies.
You've got a lot of lilies packed in pretty close together. Were they this packed in last year? I really want to see bloom pictures so I hope you find an answer soon! Hang in there.
Yes, same last year. I like the packed in look. The thing is I saw the begining of it with those brown spots on the leaves. I immediately sprayed the systemic fungicide. I am just very surprised that it didn't stop it. I guess I should have started spraying earlier in the year.
Can't do anything now as its raining again as usual. I plan to also spray with the ortho Desease control (draconil) as soon as we get a non rainey day. Its not systemic but kills all sorts of fungus spores on contact. I will even drench the soil and pick off the bad leaves.
I was told that the Bayer Advanced does not work on the Botrytis. Surely this can't be that uncommon a thing to have happen? Must be something to spray that stops it.
Who told you it wouldn't work? Doing a little checking around and found this ~ it's a slide show and you need to keep clicking the 'down' on your side bar
http://www.chattanoogarose.org/Rose%20Show%20Talk%20Rev%201.ppt#256,1,Rose Garden Pesticides
(you'll get a box that asks if you want to Save or Open, just click 'open')
Moby- Great slideshow with lots of handy useful info. Actually I was told on the Gardenweb rose forum that the Bayer would not work.
Today I sprayed both roses and lilies with a combo cocktail of Bonide Infuse and Draconil. Draconil is not systemic and kills all sorts of fungus on contact so I figgured it might work. Also, I remembered my roses never had waterspots when I used Infuse instead of Bayer Advanced. But it has been such a wickedly wet spring that all the fungus types are probebly having a big party.
I have some Safer Brand garden fungicide which is a sulfer spray that is not much use against blackspot for roses but sulfer should be highly effective against Botrytis so I will spray all the lilies that show any signs tomorrow. Then I will just watch them to see what happens.
I am going to have to spray too..lots of it here due to the yet spring we are still enduring...ugh!
Sulfur is not effective on botytris, try copper, I use Kocide since it is easy to mix and copper is a good fungicide against other diseases, also provides some frost protection. If the lilies have had tissue damage botrytis can become systemic and kill the stems to the ground, frost and hail are examples what can cause that. I also use a very good systemic, Chipco, but you have to buy it by the 2.5 gallon jug and it is about $375.00.
Daconil is a good protectant and works best if sprayed to cover the leaves before infection occurs, and must be reapplied as the lilies put on new leaves.
Sorry to see you all are having so many problems, it is normal here in western Oregon to have killler botrytis outbreaks, it rains 9 months out of the year!
What are "the classic signs of botrytis?" Somewhere I read that it attacks causes blemishes on flowers and may attack buds. Then in Dave's Garden somewhere someone posted a picture of lily leaves yellowing and browning in long "stripes" lengthwise on the leaves.
Something is getting my delphinium year after year. The leaves just go brown and eventually the plant dies. I wondered if this could be botrytis?
TIA
LAS
Here is a page dealing with delph issues. Hope it's helpful
http://gardening.yardener.com/YardenersPlantHelper/LandscapePlantFiles/
Edited to change link.
This message was edited Jul 22, 2009 10:35 AM
Thanks, Moby!
It looks like I might have Cyclamen mites. Anyway, that's the closest I saw to my symptoms. And it makes sense, since they're too tiny to see very well. I'll give it a shot.
las
Well that link came out kinda weird! Try this http://gardening.yardener.com/ and type 'delphiniums' in the search box.
This message was edited Jul 22, 2009 10:35 AM
Yeah, that's what I did in the end anyway.
I picked up a phamphlet for " Green Cure" while getting ant bait yesterday. Has any one tried it? GreenCure.net is the website given. Sounds wonderful...don't they all!
Carol
I see the active ingredient in Green Cure is potassium bicarbonate. Sodium bicarbonate (baking soda) is an ingredient used my many rosarians to combat disease, so I think it is safe to say that there is at least some merit in the product. There are no fungicides that are effective on all fungal disease, and of course, you wouldn't expect this to be a cure-all either.