Black spots, yellow spots, and aphids
raymondo17
3 years ago
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Yellow Bugs with black spots on my roses!
Comments (17)Obviously others have not had a plague of cucumber beetles like I've had or they wouldn't dismiss them so easily. Like thrips, some years are worse then others but in a bad year they will shred every flower in sight. 2 years ago clouds of cucumber beetles (literally clouds) settled onto my fall flower display and within 2 days every mum, Helianthus, Aster and Zinnia was in tatters. My neighbor remarked that it looked like a plague of locusts had passed through. They also afflicted my roses, but with more petals the roses withstood the damage a bit better. In my area they are constantly present during the growing season, but fall is when their numbers can get out of control. I rarely do insecticides and it would have been particularly hazardous to do it when all the blooms were open as not only the cucumber beetles were present but also loads of bees, wasps, moths, butterflys etc. All I can do is pray that it doesn't happen that badly every fall. Cucumber Beetle eating a rose petal. Note how their eating pattern which can lead to the shredding pattern. They also drop down into the layers of petals and munch away out of sight....See Moreaphids and black spot
Comments (2)I sprayed my roses with fungicide, followed up with insecticide, and must have gotten a combo of this on my skin. The black spot is gone, the aphids are gone, and I have blisters all over my wrist where I got it on me. So please, wear gloves! I learned my lesson (Ow)...See MoreYellow leaves, black spots?? (pics)
Comments (1)Blackspot. The forum has LOTS of posts about it. Some roses are more susceptible than others. You can spray but you have to repeat every week or whenever the directions say. You must also collect and discard all affected leaves. The spray doesn't get rid of the problem. Instead, it protects the new growth....See MoreBlackSpots and Aphids
Comments (10)Greg I feel for you, I know just what you mean its a battle here to get rid of anything, I had the worst growing season for roses last year, I tried the milk and water thing, and nothing worked for the black spot. I removed the leaves as soon as I seen them, even that did not work, so this year I went the other way the dreaded chemical way. Most of my roses are standards except for some carpet roses and climbers I have only two bush roses and they do not get any overhead watering, the dew is so heavy every morning it would be the same as. I spray with Triforine every 10 days and it will soon be down to 7 days and they are very thickly mulched with Lucerne or Sugar Cane Mulch. Here are some of the Organic ways to help with your problem. Do not grow any annuals or smaller plants underneath your roses.Try and decrease the humidity around the plant as much as possible by spacing them further apart. Do not plant up against a wall where circulation is minimal. Do not water late in the afternoon. Pick up and burn diseased leaves. I will not spray for Aphids and believe me I get heaps, so I spend a fair bit of time taking them off by hand, thank goodness I have only 34 plants, and everytime I see a Ladybird I take it over to the roses. If you have to use something I believe Confidor is the way to go, but as I have never used it I cannot advise you. Today I found two little green frogs on the Hibiscus and that made me very happy as I was worried that the spraying of the roses would make them want to live somewhere else but it seems they still like my garden. Have a look at the link below It is worth a try as its will get rid of both your problems if it works. Cheers...MM. Here is a link that might be useful: Organic control for Black Spot....See Moreraymondo17
3 years agoraymondo17
3 years agoJoJo (Nevada 9A)
3 years agoRose Lai (9b)
3 years agoraymondo17
3 years agoraymondo17
3 years ago
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seil zone 6b MI