Black Spot Roses Treatment
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- Опубліковано 1 жов 2024
- Black spot is a fungal disease that appears as black and yellow patches on the leaves of roses. In this video, I'll show how to treat the problem in your garden. Because black spot is spread by wind, it's pretty difficult to exclude the spores - so the treatment focus is to reduce severity and re-infection in the garden. I'll also discuss some of the more natural alternatives to heavy-duty chemical fungicides.
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In india we use neem leaf extract powdered together with turmeric to prevent fungal attacks and we also use neem leaf compost( repeat , compost) into the potting media to safeguard roots and neem , camphor , turmeric paste on cuts (if we had to cut any branch) at the very beginning of the notorious Indian monsoon. Believe me it is a very effective way to shield your roses from being attacked by fugus but remember it is only a preventive measure.
Clear, concise, knowledgeable, well presented and without inane background noise or music. Excellent. Thank you.
Thanks Lorna
Perfectly put and agree with you totally. Thank you to FVRF for making this video...
Agreed!
This is by far the most articulate, to the point, intelligent, organized video I have ever seen on plant care. No Rambling, no talking on and on; just information. you are a great speaker and have great knowledge of your roses. thank you very much. Subscribed ❤️🌱
Thanks so much for the feedback
like his other videos. This is the top channel for learning about rose culturing.
MsLouisV well said. Totally agree
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GREEN GARDENS n
A few years ago I collected a load of used coffee grinds from McDonalds, I then often piled them around the base of my roses, this pile was about 3 or 4 of inches high. I had seen somewhere that the old coffee grinds would feed the micro life, that in turn would feed the roses. This would allow the roses to become very healthy and be strong enough to resist the black spot. I was amazed that my roses that year showed 'NO' black spot. I had used a lot of coffee grinds, not a small amount..
Nice. Thanks for sharing your experience
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I also tried the coffee ground method my black spot has almost completly cleared my roses doubled size l never had so many bloooms I also changed the mulch removed all leaves best rose year ever
Does lots of coffee grounds negatively impact the soil nutrient balance?
To Naomi, we share our coffee grounds with most of our plants, in particular the Camelia as it loves an acid soil and we are a bit limey here. We've found it boosted worm numbers in a very short time and the camelia went from sad to happy (we also moved it from a too dry site to a more balanced spot - sun for the first half of the day then shade). You'd be surprised how good a steady supply of not very many coffee grounds mounts up.
On top of that, caffeinated coffee grounds are a slug deterrent.
Good luck!
You are so clear and thorough. You are my garden guru. I’m a pretty good gardener, and I know a lot but you seem to nail the problems that affect most gardeners. Thank you❤️
Many videos told me to get rid of leaves with fungus and black spot. They showed the host ripping off the leaves. You are the only person who showed me how to rid the leaves appropriately, by pulling down. I tried your way and it was much less traumatic for the plant. A nice detachment without bits and pieces of leaves coming off. Thanks.
I had pretty much decided not to continue to grow roses because of our black spot problems in previous seasons. However, Jason you have managed to give them another chance. Your articulate and reasoned presentation has inspired me to give it a go.
I hope you have a great season!
This was so helpful. I have actually loved on my roses more this year than any other year and have seen this black spot. I thought it was something that I was doing like over or under watering. Good to know that it is not nearly as detrimental as it appears sometimes.
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Great information. I just moved into a house with a few rose bushes and I am on the hunt for all the information I can get on roses. Your channel is the answer. Thanks for your great advice.
I love my plants, so it's quite often that I look for videos related to plant care tips and so far this is the most sensible video on gardening, I found here. Great job, you earned a subscriber ❤️
Thank you for the beautiful well thought out, informative hands on and delivered presentation. 🧚♂️
Thank you so much! I asked Baldo Villegas about my black spot and he and others just keep telling me, there's no blackspot here, we have anthracnose. My roses look precisely like yours in this video. And YES I am tired of leafless roses!
I live in Houston where it obviously is warm/hot and humid much of the year. I’ve avoided roses all my life for fear of Blackspot. But now that I’ve seen many in my region successfully grow roses I’m giving it a shot, with considerable trepidation. Ha! Your classifying it as primarily cosmetic issue that can be controlled gives me some hope. Fingers crossed. Great vid! Thank you!
Thank you for this! I am so glad I found your channel - you give great, fuss-free down-to-earth advice!!
Very good and I appreciate the great presentations so much.
My rose teacher on the other side of the world :) Thank you for another great issue. Now I can be less anxious about these on my roses.
Thanks so much. I love your videos. You are not very lengthy like some other experts. Keep up the good work!
I've been pulling those ugly black spot leaves forever, as my dad did in his extensive rose gardens.
I plan to clean up very well this fall and put in new bark after I prune the plants back, in January
I really dislike the stuff & thought it was something I was doing wrong. I hadn't realized it came in on the breezes.
Thank you for this great video with down to earth usable information!
Glad I found your channel!
Me too. Thanks Ellen
Excellent video. New gardener struggling with black spot. I now know what to do. Love it. Have now subscribed to your channel so I dont miss anything.
I appreciate your no nonsense approach to helping us grow better roses. Many thanks.
Your advise and information are very interesting.I really appreciate them.
Thank you. I will use your recipe for my roses. Will start from spring.
This is very interesting. I only have one rose, but it's amazing! It's a Peace rose and this is it's fifth year. Each year it gets bigger and has more blooms despite lack of "proper" rose care. This year it has black spot. So I'm pleased to know that it's not a serious problem (apart from how it looks). 😁 Thank you for this information.
Thanks for this great info. I’m happy I stumbled along your channel. Keep the great info coming. 🙌🏽
Many thanks Jason, I will follow your advice, we are well into the blooming season in the Southern Hemisphere, and we get plenty of rain. So we are plagued with black spot. As you say, the blooms are unaffected, but it is unsightly. The overall view of the garden is beautiful though, regardless of the black spot. Thanks again
Best video ever on this!! And expertly explained. THANKS!!!!
Thanks again for debunking the the idea of black spot eradication . I once was a zealot for spray programs on my various rose gardens . About 30 years ago I went to a more sustainable organic approach . I found if I kept the ground free of leaves and mulched with fresh wood chips ,90 percent of my fungal rose problems became non issues . Not to mention the money I saved along with my health and the environment .
Thanks Terence. Good to hear you were able to get the black spot down to tolerable levels without the chemicals!
my botany professor told me that blackspot does affect the health of the rose if not kept to a miniscule ratio because it kills the leaves and therefore begins to starve the plant. Do you not agree?
It's definitely a matter of severity. Anything that reduces photosynthesis (from a harsh pruning, to insect pests, to a part-shade location to even a stretch of cloudy weather) provides the shrub less energy for growth - but that said, a generally healthy rose often grow and bloom through temporary stress. I don't mean to say "do nothing" - just more "don't panic". Your rose will deal with plenty of little stresses over its time in the garden, and touch of blackspot (so long as it doesn't defoliate the whole plant) is not so much a serious threat as a temporary cosmetic problem.
Fraser Valley Rose Farm okay that’s great news. After 3 weeks of nonstop rain in the 110% humidity of Georgia, my roses suddenly all got hit with this stuff and I had to cut down two of them to nearly nothing bc the leaves were just so few. They’re now in good health and coming back thanks to neem oil and an organic antifungal but you’re right if I don’t do it twice a week, it comes back with a vengeance
Much appreciate the comprehensive advice, especially regarding watering and blackspot. So helpful to understand what exactly is going on with the plant in the first place.
Big thanks.
My pleasure Basil
Thank you I didn’t know how to deal with this
Thank you very much for your video ,so clear and so helpful!
Best video to watch for Blackspot. Straight to the point ❤
I've used a liquid sulphur compound diluted in water. Worked great
Thank you so much Jason for such an informative tips and guides. Love to hear the sweet sound of singging birds in the background😍
Woooow the weather 😭😍😭😍 look like Innsbruck and Garmisch-Partenkirchen 😍💔
I just found your channel last night. I can't stop watching it! The rose on my thumbnail if you can see it is hybrid tea Henry Fonda! I'd love to get my hands on Fellowship.
Excellent video for Rose culture. Thank you Sir, for teaching and sharing your knowledge. 👌👌👌😊
This was timely advise. Black spot is nasty! Rant complete. 😁
I am a Rose lover, thanks for the advice!
I thought black spot fungus was bad for roses and would eventually kill them. I just sprayed my roses with the fortilome triple action mix because I was afraid my roses were gonna die. I didn't know what else to do. I did remove all the damaged leaves though. 😒 I hope this works.
I'll have my fingers crossed for you. That fungicide is pretty broad-spectrum - used as directed, it should cause no harm and will likely reduce the severity of the infection.
@@FraserValleyRoseFarm Thank you! I'm so glad to hear that. Thank you for sharing your knowledge with us.
I apologize if this question was already asked, but If all or most of the leaves are effected with some sort of fungus, how do you avoid removing too many leaves? You need the leaves for photosynthesis, correct?
Very good information. You are a great teacher. Nicely explained
I think this is the first time I've heard the truth about Black Spot. I remain discouraged but at least I won't waste my money on fungicides and other chemicals. Thank you.
I so appreciate the time you put into your very educational videos .You provide me with great info in a very complete and applicable way.You must love your roses ,thank you for helping have a more successful “plant relationship”
My pleasure. Thanks for watching.
Great advice! Thank you.
Best Regards from England.
Stay safe everyone. 🌹
Thank you for this. I used systemic fungicides...reluctantly...25 years ago, but the warnings on the packages were so dire that I hated using those chemicals and eventually stopped. And no, they did not get rid of the BS, just retarded it for a while.
Thanks!
Than you for this videi. Very helpful. Exactly what I needed.
What I did was pluck all the black spots off, use a biodegradable anti fungal for the plants and spray it once a week. Works like a charm. Now new flowers and leaves are growing with no spots.
Wow, thank you again beautiful place.
Thanks for making this video. I thought black spot was a disease that killed the leaves on rose bushes and eventually could kill the plant. Now that I have my own lovely rose garden I was very upset when the spots came. Sooo relieved to know that it is really only a cosmetic issue. I can handle that and treat it without getting upset!
So happy to help Jennifer. Best luck with your roses!
I don’t think it is solely cosmetic, after years of the infection & trying everything every season to lessen it’s growth I think it has weakened my David Austin rose to the point of exhaustion! If you’re constantly stripping leaves in the height of the season, there’s not much chance for your plant to be fed/breathe….
I found that if i keep some space around the roses, they can resist black spot. IMO, roses are some kind of high desert plant and they like it dry and breezy. a really soggy season makes a mess of my roses. edit: IMO, mulching roses enhances moisture and black spot. decorative rocks, pea gravel+sand, or bare ground is what roses like better.
Thanks. There's no doubt that roses suffer less from blackspot in climates/conditions without too much moisture. It can be a bit of a trade-off, as they also give more and larger flowers when maintained with a consistent supply of soil moisture. Mulch (organic or not) helps with the soil moisture, but you're right that an organic mulch at the base of the plant can be a risk for holding and transmitting fungal spores.
I have one particular rose which is not doing well.. those black spots indeed. I will attend to that tomorrow for sure
Thank you 😊
Thank you. Confirmed I am doing the right things, except cutting the leaves off rather than removing the way you do. Good video!
Is my rose better off with my stripping ALL the black spot leaves? I need to be a better housekeeper and not let the blackspot leaves just fall to the ground. I can put them in my compost bin bc I don’t use that worm rich soil for my roses:-). I plant all my seed crops in it. It is so full of humas from worm castings that it is like chocolate pudding. I’ve been having it for (4) years now.
Hi Portia. If you have the time to take off all the leaves, it's the best for reducing subsequent reinfection. I have to admit that I don't take the time for it if I see a touch of blackspot on a relatively resistant variety - and sometimes badly infected roses are better served by pruning rather than stripping.
Fraser Valley Rose Farm Tea Clipper has it bad. When I 1st got her I did strip ALL her leaves. She’s grown so tall. Now she’s bounced back and done it again:-). The blackspot leaves are around the bottom. I seldom find Japanese’s beetles low on my roses even on Poseidon. I wonder why?
Do not put the diseased leaves in your compost bin, or you will reinfect everything the compost touches. Leaves and canes trimmed due to black spot must be thrown in the trash, not composted.
This guy knows what he is talking about. Greetings from Uruguay.
Great video, I've been thinking about this very topic !!
Thanks! What a relief to listen to you discuss this subject/solution.
BTW, your solution for leggy seedlings worked better than I had hoped, & my "nasties" are humming along! Thank you so much!😸
Very informative, thank you
Thanks so much, great video with multiple options. Appreciate you.
Great video…. For me it’s all about simplicity, and safety.
Thank you so much for your advice. That was perfect!
Thank you for taking the time and effort making these videos but especially sharing your professional knowledge and experience, which of itself is both priceless and very generous of you. Hadn't realised how invasive/pervasive it is, and how widespread it appears to be. So disappointed that a brand new rose gifted me as a bereavement gift has developed blackspot within days! Have checked for a lot of the natural ' ingredients ' and unfortunately do not seem to be easily available here. I shall continue my almost 'quest' for natural remedies and if anyone could advise on their availability, am grateful in advance! Thankyou again. Many blessings and greetings from England
@@no-diggarden thank you for the response. No powdery mildew so far, but I'll know what to do : ) milk is easily available here....sun, not so much... Greetings from England
Hi I live where its pretty hot through all seasons Rose's never go in to rest mode I'm afraid I'm not a very good gardener and have used a hedge trimmer on the roses (sorry you ve probably cringed at just the thought of that ) they look tired especially by end of season should I prune them early October. I also get black spot which when they look tired makes them look very unhealthy, I may try the coffee that the lady has said works .Thank you for your videos I'm trying to learn .
Thank you for a straightforward, thorough, and helpful video. I like that you presented options in increasing order of potential negative impact/risk and that you gently encouraged :) people not to use the big guns. I just subscribed and I'm looking forward to watching more of your content. I have a question about mulching. I'm a beginner with roses; I planted some 1.5 years ago that were given to me in their nursery pots when some neighbors moved away. I researched the best location, planted them, and didn't do too much else except remove spent blooms and occasional pruning. They all have blackspot now and possibly had it last year. They have always had wood mulch in their bed. You mention putting wood mulch down after the other steps. Is the current mulch likely harboring the fungus? Do I need to remove the 1.5 yr old mulch completely and add new? Sorry for the long comment. Thank you again for the video.
Thanks Bonnie. Yes, when it comes to blackspot, the mulched area below the plant can accumulate dropped leaves and reinfect the plant. If you're having a problem controlling it, I do recommend removing the old mulch (to a non-rose garden area) and replacing with a fresh coat before leaves emerge in spring.
@@FraserValleyRoseFarm Thank you! I can wait until spring to switch it out? I just took a lot of affected leaves off today and picked up anything that I saw on the ground. I just need to get the ingredients and make your spray now. Thank you also for letting me know it's ok to re-locate the mulch. I was wondering about that.
Wow! How amazing is this video? This is just what I needed, I was about to chop down my rose bush, because I'd enough. You saved it, Thank you.
Phew - close call! I'm glad you decided to give them another chance.
Just prune them put them in the full sun
Spray them some garlic powder in evening clean your roses ground that's all
I have rose here more than 40years American roses still I have no issue about black spot
Just spray them some garlic power with mix water 😀 trust me
Thanks for the advice. I'll have to try it.
What’s your recipe..how much garlic powder in a gallon of water? Thanks.
Thank you for sharing,your take on rose leave buds.... and some solutions
Hello, Your all tips are helpful to my gardening. Today also. " Black spot" is an international means all over the world Rose 🌹 plant. Thanks 🙏 Zz
I was going to avoid growing roses for this reason, HOWEVER now that i know this, I’m going to give it another shot!!! Now I know not to worry about all the black spots & just remove them!! Thank you so much!!!
I’m so glad I found this video and another video of yours about black spot - I thought I needed to remove all my roses before!
I really enjoy your U tube videos and very much respect your opinion - I have been gardening here in the US for more than forty years and the experience tells me your common sense advise corresponds with what I have observed/learned. So, the reason for this - black spot. My new roses have been badly affected (they were supposedly disease resistant, what/which diseases I ask myself). I have worked hard following your advise and now I wonder if I should cut off the hips, they do not appear diseased? I look forward to entertaining myself all winter long watching
Thanks Mary. I personally wouldn't worry about the hips - the spores are more likely to overwinter on standing and fallen foliage. One word on your new roses: don't judge them too harshly just yet. I've had a few varieties hit hard by blackspot when they're just getting established, but once they've built a good root system, they performed much better. Just sayin'
Thank you very much for such an informative presentation. I have learnt so much about roses ever since I found your channel.
Addicted to your channel now! Do you think the granular fertilizers for black spot and insects are just as bad as the sprays? Or are they harmful to the soil in any way?
Great advice, glad I stumbled on your channel. Thanks
I'm using the out of date milk to spray the leaves of my roses it gives shiny leaves like shield and it helps to prevent the black spot of my roses.
Thanks for the info and your advice.
Good to hear. Thanks for sharing your advice.
I will try it. Thanks.
This is EXACTLY what I need. 🙌🙌🙌🙌
Appreciate your videos. I watched the video about trimming right after the 5 leaf branches on roses last year and am getting far more flowers! Now I’ve noticed black spot this year, it’s good to know not to panic, but just manage it. Cheers from Ontario.
For a plant pathology course at university they had to bring in a sample of black spot infected rose leaves from the countryside because pollution, in particular sulphur, kept it at bay in the cities. Cleaner air means black spot everywhere but it gives people more years to enjoy roses.
Thanks - that's really interesting!
The same thing use to happen in the big glass houses in the U.K., when everyone was allowed to smoke in there the issues were minimal now not so much!
Hi Jason, for the treatment of Blackspot can I replace the 'horticultural oil' in your Potassium Bicarbonate recipe with Neem Oil? if so would the recipe be 1 tsp Potassium Bicarbonate + 1/2 tsp Neem Oil + 2 drops liquid soap in 2 pints water?
(Apologies if you've given this in other videos and I've missed it)
I haven't tested neem with potassium bicarbonate.
The only and best solution to Blackspot is to immediately pick off the affected leaves from the stems. Roses quickly recover with fresh new ones in a week or two. Rose Clear even is a waste of time because once the leaves are affected Rose Clear does not remove the damage and they expend crucial energies pointlessly and hopelessly trying to recover.
Thanks David.
We have had a very wet spring and summer so far and all my roses are covered with blackspot. Will the rose still flourish even if I have to strip almost all the leaves at this time in the season?
Hi Grace. Unless the rose is already in poor health, it should rebound fine from a defoliation due to blackspot.
Your channel has been very informative and beneficial to me as beginner. Tqvm fr Malaysia.
My pleasure. Thanks for watching!
Thanks. I will find that potassium bicarbonate.
PS; We live just two hours from Bordeaux - a lovely City - and has lots of roses in the public displays. I did wonder if the Bordeaux Mixture was based on wine - sorry ;-)
As the story goes, the vineyards in the region originally sprayed the copper mix because it looked and tasted terrible, and would discourage passing travelers from snacking on the grapes. The fungicidal properties became apparent, and so they kept using it for that reason. Not sure if this is true or not, but that's the tie-in to Bordeaux. And lucky you for living near enough to visit!
Thank you so much. This is really helpful as I’ve been looking for a more natural solution. Luckily I only have a couple of Rose trees, but I am planning on getting more.
So the copper spray in your amazon wishlist is the Southern Ag spray and that one has lime that will stick to the plant during winter, right? I was going to use Bonide copper spray but is that not as potent and mainly used for during the season? I wish I could find the southern ag spray at other stores, I’ve recently had bad luck ordering from amazon and it being a fake product.
Appreciate any help thank you in advance!
Thanks Sarena. I don't get the luxury of being able to order the exact products from the US, but I do compare them to what I can get here. The active ingredient in the Southern Ag spray is Copper diammonia diacetate complex, so a processed form of copper that is pretty effective and persistent, so if it's true to label (which I assume/hope?) I think it should do the trick.
@@FraserValleyRoseFarm oh okay thank you! so to make the Bordeaux treatment I’ll just mix it with some active lime?
I’m actually taking your advice for elsewhere in my garden 😊 my poor hydrangea bush has been suffering with fungus so I hope this makes it come back healthy next year!
I really appreciate you responding thank you
I don't think I would adjust the recipe. When you make Bordeaux mix, you're chemically adjusting the copper sulfate to make it more chemically active, but this formulation of copper has already been tweaked optimize its fungicidal properties. Lime isn't a surfactant, it just adjusts the pH, so as far as I know, you could be reducing the effectiveness of the formula. I'd try it as-is.
@@FraserValleyRoseFarm oh thank you I’m really glad you told me that! I can’t seem to find any premade Bordeaux mixes so I’ll just go with the one you have listed. :)
Thank you for clear information on treating roses with black spot.
A very informative instructional episode. Well done and thanks for sharing. Greetings from Australia.
Good info, thank you. I love Neem. Not sure about black spot being less of a problem in arid areas. We drip irrigate under the mulch and go weeks without rain (sometimes months) and still struggle with the nasty blackspot 🤷This year we're having an unusually wet winter so I brought out the nukes - Lime sulphur on roses and fruit trees.
On one of my Rose plant I get 2 different colour flowers on one stem every year. Any idea what is the cause of this ( it's not grafted as far as I know) it's quite old plant. Only start to happen in past 3 years.
Could be a sport or reversion - a genetic mutation in just that stem.
I’m in Scotland and have been using sulphur (over two kilos in the last five months) for around fifty roses. I’ve already been eliminating the leaves and stems then burning them. There’s seven old roses I’ve taken out and quarantined because they were so badly infected.
The quarantined ones have bounced back well and they receive more sulphur and feeding than any of the rest (just to find out what happens when they’re separated and also what becomes of them when they’re given more feed than the others)
I’m also using rock meal, fish based liquid fertiliser and a silicon booster to improve health. The temperatures here rarely go above 25 degrees, it’s working quite well so far and I’ll keep the advice not to use the sulphur on hotter days in mind for next summer. The only problem is the sulphur and fish fertiliser gets stuck to my clothes so after a bit of work I smell like a corpse on a day visit from hell. Looking forward to using the mulch and the other options you have offered here, thank you.
Hi Gerald - thanks for sharing your experience. Good think you're not doing the whole milk spray too - the neighbours may begin to worry!
Fraser Valley Rose Farm m
The roses in Glasgow are the best I’ve seen anywhere. My late father had a rose garden second to none in the west end of Glasgow.
You make a good point about old roses, they are so much more vulnerable. If someone is starting a rose garden go for new more resistant varieties not the established names that are always getting recommended.
Cornmeal has worked for me. I occasionally buy cornmeal for one project or another. I never use much and by the time I need it next, it is out of date. I, at the advice of an old seasoned rosarian, used it on my roses with blackspot. It worked for that season. I expect the ingredients are, like baking soda, nitrogen-heavy and pushes off the blackspot leaves and puts on new green foliage.
Thanks Pat - that's the first time I heard about cornmeal for blackspot.
@@FraserValleyRoseFarm I once grew about 500 roses. Roses require a lot of care. As I aged, I realized with a very sick husband I could not care for him and grow roses. I have now downsized to about 60 old garden roses and a 6 HTs. I have about a dozen Knockouts (My husband likes Knockouts).
Fellow Fraser valley neighbour ! Thank you for your very clear instruction. Happy growing!
My pleasure Gloria - have a great gardening season
On some roses the blackspot can cause complete defoliation by the end of the year. I think you are talking about Sulphur spray but I've also seen it as a soil supplement to help the rose. I was told that planting garlic around the rose keeps disease away and it seems to work but perhaps mostly by deterring aphids. I don't use chemicals on aphids as i depend on birds. Whilst rain definitely spreads the spot i suspect slugs snails and greenfly of spreading the spores too. I have come across a biological treatment available commercially that i have not tried, this uses a bacteria captured in the droppings of a tiny red worm. The bacteria attacks the fungi. I'd imagine that the baking soda and oil is waterproofing the leave surface so that the 7 hours of wetness is not happening but i suppose splash from below could still happen. I suppose you could block the leaf from breathing - so perhaps there is a time of day when you could spray without such happening. This might be when stomata are closed such as times of high evaporation. The carbon dioxide released from the baking soda may encourage them to open so watering the rose at the same time might help I've also heard of weak vinegar being added with the baking soda.
Hi again, Jason. Here's a black spot (on Albertine) update on 20 May. No black spot at all except on new leaves at the top that grew after the Bordeaux mix followed by horsetail decoction. Looks like this is the way to go!
Yea i also use neem oil. Thank you.
I bought a 3’ rose in a 5 gallon pot in April. Beautiful roses bloomed of soft pink with yellow and the blooms were big. I prepared the hole and planted it. After. 2 weeks I fertilized with rose food as instructed. Then, the brown spots and yellow leaves started. I watched your video and did as you said and removed the yellow leaves and made sure to clean up afterwards. It is June and the temps are already in 90s and there are hardly any leaves left on my rosebush and there are no new buds. What do I do?.
Just recently discovered your you tube. You're awesome. I am in western Washington, so a similar climate as you. Your info is very good and helpful. Thanks for sharing your knowledge. I really needed this. My roses are stunning for 30 years. But black spot has plagued me in the last few years. Thanks for the info.
Thank you so much! This has been the best information I have seen yet for black spot. Last year it was awful, I lost blooms completely for the entire season. I am very excited to learn more about how to care for my roses better this year.
Thanks Leah - sounds like you had a heck of an outbreak of blackspot! Better luck this year
The first month of growth which is generally a rainy season, is the worst. I found that if I just hang in there and remove only a few bad leaves every single day ( no need to get it all right away), it resolves itself within a few weeks. This is because by doing this every day, you're helping the air circulation and as your roses becomes more dependent on a drip system and less on rain, it just dies out eventually. I also see that it's worse with roses that are being attacked by aphids and other insects. So once the predatory insects are out, the roses and foliage just start looking gorgeous without any insecticide needed.
Thanks for your insights! Very helpful