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Drat, thrips!
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Posted by
seil z6b MI (
My Page) on
Sat, Jun 9, 12 at 13:14
| My show is next Saturday! I've sprayed but is there any hope that I'll have a decent looking bloom by then? Everything open or opening out there now is damaged goods but there are a lot of tight buds that could open this week since the weather is supposed to be pretty hot for us.
I'm so bummed. I finally got a handle on the BS and PM this spring only to be taken over by thrips. It's not fair! Any other suggestions? |
Follow-Up Postings:
RE: Drat, thrips!
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| Our local society says to spray the buds the second the sepals crack to keep the exhibition flowers clean. I've heard of the spray being either insect killer, neem or spinosad. I don't exhibit so I don't know much more than that. :) |
RE: Drat, thrips!
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- Posted by seil z6b MI (My Page) on
Sat, Jun 9, 12 at 17:18
RE: Drat, thrips!
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| Naturalis L at Rosemania ... it works. |
RE: Drat, thrips!
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- Posted by seil z6b MI (My Page) on
Sun, Jun 10, 12 at 12:07
| Thank you, Rosetom. Ouch! That's a pricey one! |
RE: Drat, thrips!
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| When I exhibit seriously, I use Orathane 97% in a spray bottle and mist each bud or spray early in the morning and late afternoon/early evening. A little work but it sure works. Mix 1 gal at a time. |
RE: Drat, thrips!
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| I'm so sorry, seil and I hope you have some perfect blooms for show. I do hate thrips, and I've never found a way to get rid of them. Spinosad doesn't work at all for me, and I don't use the really potent stuff in my garden. Poor Fred Mistral is usually a thrippy mess all summer. He's the worst, for sure. Good luck. Diane |
RE: Drat, thrips!
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| My roses entered spring with imidacloprid coursing through their veins. I had the stuff anyway from the time my thujas used to get massive aphid attacks, so I gave the roses a preventive cocktail of water + imidacloprid every 4 weeks. It's so hot and humid here that I expected the worst. So far no thrips except for very few on one bush (Gartendirektor Otto Linne) a month ago. They disappeared never to return after I sprayed the bush with imidacloprid mixed with water. Seil, I just had a possibly crazy idea (remembering what I read in this and the Antique R forum on the impact of heat reflected from surfaces) - I would try and set some heat reflecting surface next to the roses. Might it not get the buds to open faster? Cook them into full fledged glory? |
RE: Drat, thrips!
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- Posted by seil z6b MI (My Page) on
Mon, Jun 11, 12 at 15:23
| Do you mean Orthene, Ken? I tried to find it around here but couldn't and I can't wait to order something. I did purchase some Ortho insect spray that said it was for thrips. I hope it works. Thanks for your sympathy, Nana, it helps Lol, Wintercat, that's a clever idea! Most all of my show roses are the potted ones on the patio and that's always a few degrees warmer than any where else in the yard so maybe that will help. The first spray I used had imidacloprid in it and that didn't seem to do much. Oh well, back out to spray...again! Thanks everyone! |
RE: Drat, thrips!
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| I have a hard time balancing spraying my insecticide to try to "control" the thrips without setting the rose bushes up for major spidermite problems! Good luck! |
RE: Drat, thrips!
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| I hand water my roses at least 2 times a week. Every time I water, I wash the underside of all my bush's and then wash the bush's from the top, washing mites off. Mites hate water. Ever since I started doing this (10/12 yrs ago) I have never had a spider mite problem. This way I can use an insecticide any time I really need to. A clean bush is a happy bush :) Sharon---Give your bush's a good wash down early next week and then 2 days later do it again. |
RE: Drat, thrips!
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| I'm going to be trying the Naturalis L this weekend. I bought it a few weeks ago, but I had to delay my fungicide spraying because of weather and you have to alternate the Naturalis with the fungicide (since Naturalis is a fungus). I STILL have thrips, they've been here since April. I've had enough. |
RE: Drat, thrips!
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| Seil, when I sprayed GOL with imidacloprid a month ago it was the first time I ever applied inidacloprid by foliar spray. Up until then I always had the plants drink it through a soil drench. The reason is that I've been told that when applied by spraying imidacloprid stops being effective the minute it dries up on the plant, and here everything dries up on the plant within minutes most of the time. It may well be that spraying GOL worked because the thrips were already not in the peak of health after drinking the poisoned sap of the bush. The spray may simply have been a coup de grace. Here the recommendation for thrips is spray with Cypermethrin or Malathion. Imidacloprid is recommended only in soil drench and only as a preventive measure (by and large quite effective in my garden so far). I hope your roses are unfurling perfect buds ahead of the Saturday exhibition. |
RE: Drat, thrips!
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- Posted by maryl Z7 Okla. (My Page) on
Wed, Jun 13, 12 at 13:07
| I hope we keep hearing reports about Naturalis L. It sounds promising. I don't like the fact that basically you need a dedicated sprayer for it. Well, immaculately clean is what I was told and I certainly can't guarantee my sprayer is "immaculate". Also I wonder what the shelf life is for the product since it is a "fungus" and how often do you need to spray for it to be effective? Is it a contact insecticide similar in effect to BT with no residual action? Anyway, as it becomes more widely used I'd be interested in the reports and specifics.....Maryl |
RE: Drat, thrips!
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| I didn't read that part mary, my sprayer is FILTHY. It's got some kind of gunk on the inside. Probably not a good idea to use the same one that I do for fungicide anyway. I will probably use the little sprayer that I mostly use for RU, but it's been rinsed well. I know it can't be kept outside or in a garage where it will get to above 80. I bet that would kill the cultures. |
RE: Drat, thrips!
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- Posted by seil z6b MI (My Page) on
Thu, Jun 14, 12 at 11:44
| Thanks, Kentucky, I am concerned about that. I have never been a big insecticide sprayer and I'm sure this is going to upset the balance. But I'd like a couple blooms for my show, lol. After that I'll stop spraying and keep a good look out for mites. Ken, I do the water spray thing regularly too and I've never had problems with mites. It will be the first thing the roses get after the show. Buford, does the Naturalis L kill thrips if it's a fungicide? I'm not at all familiar with it so I'll have to do some research on it. I agree that a systemic solution probably works better for longer,Winter Cat, but I don't have that kind of time. I'm shooting for Saturday! Thank you all for you help. It's much appreciated! |
RE: Drat, thrips!
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| I was under the impression that rose showers used "bonnets" to protect their blooms from thrips (memory of an old man). So I entered bonnet, thrips, and roses into Google. Here is one hit that mentions a commercial product. |
Here is a link that might be useful: bonnets for thrip protection
RE: Drat, thrips!
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- Posted by seil z6b MI (My Page) on
Thu, Jun 14, 12 at 19:33
| Thank you, Henry! I know some of the really big guns use those bonnets but I'm small potatoes and never have. I'll get up at 5am and go out and cut what ever I have that looks half way decent and hope for the best. I just want to make sure we have roses on the tables for people to see. That's the most important thing. This is the first time we've ever had a show at a rose nursery instead of a church hall or shopping mall. We're hoping we might actually get some people to come through and there will be some interest in the roses this time! |
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