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Powdery Mildew in November
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Posted by particentral 8 (My Page) on Wed, Nov 4, 09 at 13:52
| I never had a spot of Mildew this summer, yet now with the heavy dews we have been having there was some on the 2 plants that are the thicker of my roses this morning. Maybe on 6 or 8 leaves is all....I sprayed, but am wondering how often do I need to do that? Same as for Blackspot? Or just watch and treat as needed? The bottlw of fungicide I have is not real clear on PM. SHould I leave the affected leaves or remove them?? I have never dealt with it probably because of the spray program I was on up until recently.
I admit I had quit spraying at the end of Septemeber.....maybe I shouldn;t have. The roses are all blooming their hearts out, and in a day or two I should have over 300 blooms open on the Hybrid Teas and Grandifloras along my walkway. |
Follow-Up Postings:
RE: Powdery Mildew in November
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| Same thing here, some of my roses that were clear of any fungus all summer have a good case of mildew now. I would leave them alone, perhaps remove the infected leaves but the mildew will be done spreading soon with the cool winter weather coming soon. Lance |
RE: Powdery Mildew in November
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Particentral,
Just wash it off in the morning with your hose.
The powdery mildew washes off.
The ground is still quite warm in your zone even though it is November. Your roses are blooming.
Not enough water causes powdery mildew and lack of air circulation too.
Powdery mildew wont kill the plants, my plants are covered with black spot. I am upset.
The stores in my area don't have the Bayer Advanced so I guess I will hope for the best for them.
I love roses, but they sure are alot of work. |
RE: Powdery Mildew in November
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| Label is law: Folks if you have any questions regarding use or need a MSD there is a 1 800 phone number on the label call and ask for this information of use or any other questions you may have Powdery mildew ( a fungus born disease) main cause damp cool air with low or high humidity ( morning dew is that humidity) I donot reccomend you get the rose any wetter than it already is. Lack of PM control products Prune and remove effected areas of PM away and discard in trash or burn Fungus can and does overwinter donot add to compsot. Other products to use for PM are, K-Neem or Neem avaliable at the cut flowers area of most grocery stores or garden centers in ready mix bottles, donot skip prunning PM and follow labeled instructions |
RE: Powdery Mildew in November
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| Thank you. I was not going to wet them further as I had no issues until it started getting wet in the mornings. The reason my lable doesn't really meantion PM is that, well, my HUSBAND tore it apart to read it better and lost several pages of it! It isn't the manufacturors fault. I do not have time to go get another bottle My busiest season at work (dog grooming) started this week and will go until after the new year. I am working 11-12 hour days 5 days a week, sometimes 6 until after Christmas. I was just wondering how best to handle it this late in the year. I mean, just because it makes sense to ME doesn't mean it is correct. I am excited to see my band roses even blooming this late in the season! All but one of my roses is blooming and it arrived as a damaged (read broken with two leaves) band that I thought was going to die, so the fact that is is growing but not blooming makes me happy. The rest are SO pretty! My Veteran's Honor has 4 of the prettiest red roses on it I think I have ever seen in fact and I just got it in September. I am learning, so bear with me. My gardening experience was all in a different climate. MA versus GA. SO what I think I know doesn't always apply! |
RE: Powdery Mildew in November
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| Parti, most of the fungicide manufacturers have their labels online, so you can go to their web sites and look them up. PM can also be treated with a solution of 10% milk/90% water (1 part mile to 9 parts water). It is usually weather related, so you can just wait it out, although some roses are more prone to a PM outbreak than others. You'll get the hang of it! |
RE: Powdery Mildew in November
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| Cool nights and warm days are going to create Powdery Mildew. As noted, just hose it off. It will all come to a creeching halt when day time temps are cooler. Just a minor aggravation is all it is. |
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