Black spots on my roses?

Question

Since we get alot of rain here here in Oregon I get black spots badly on my roses. I really dont like to use chemicals. Is there another way to get ride of them?
Thank you

Answer 1

"Blackspot is a fungal disease most prevalent in wet weather as it is spread by water-splash or wind-blown rain. "

Recommendation for non-chemical control:
"Remove infected and fallen leaves promptly and regularly. Hard prune infected bushes in spring and burn the prunings. Check out catalogues and plant roses resistant to blackspot."

"A preventative program for black spot should begin in the fall with a thorough sanitation program. Diseased leaves on the ground should be raked and burned or removed. All diseased canes should be pruned back to healthy wood. These practices will reduce the amount of overwintering fungus. During the growing season, overhead irrigation, which prolongs leaf wetness, should be avoided. If plants are overhead irrigated, watering should be done in the morning rather than the afternoon so that leaves dry quickly. "

I think if you follow this advise and then use the baking soda and dish soap remedy, you will find that you can control the problem even in our wet weather. My roses on the west side of the house seem to do fine with this process (I use a tablespoon of baking soda and a bit more dish soap - Dawn) as the leaves dry out in the afternoon sun.

Answer 2

An old-time remedy puts baking soda, dishsoap, and water to use. The baking soda acts like an antiseptic, and the dish soap acts as a 'spreader-sticker'. First, you need to remove all of the infected leaves, so that the disease spores don't spread. (Don't compost the sick leaves - get rid of them. Also remove any that have fallen to the base of the plant.) Then, in a quart spray bottle, mix up a tsp. of baking soda, a drop of dish soap, and fill the bottle with warm water. It's best to spray when the solution can dry on the leaves - hard in Oregon, I know, but not impossible. Also, you'll need to be diligent, and apply the stuff pretty regularly.
Good luck!

Answer 3

First. Remove all leaves with spots and throw them away... ALL, letting lay on ground keeps the mold in area. Next its chemicals time. Go to nursery they can tell you which one works best in your area. At this time of year your roses should be dormant so cut back stems and throw away or burn

Answer 4

that's an extremely trouble-free fungus on roses. it is likewise very curable and from my own experience seems too no longer injury the plant too a lot as long because it extremely is not everywhere in the plant or spreads/gets larger. you truly desire to do away with it because of the possibility of it spreading or probably stressing the plant. If it happens on stems merely decrease it off or spray a sickness controlling spray in accordance to the learning. If its on the trunk you cant decrease this off, and you're able to desire to spray it. to avert further sickness, make helpful the plant consistently has sturdy air circulate, look on the plant in many situations to seize any parasites attempting to consume your rose bush, supply long deep watering's yet enable the soil to be somewhat dry between waterings. wish this helped! sturdy luck gardening

Answer 5

baking soda and horticultural oil mixed together,spraying them before rains,top and bottom of leaves.also,good air circulation,no overhead watering,and mulch the base of the rose bush.good housekeeping practices such as cleaning up fallen debris and leaves constantly,and cutting back infected canes should do the trick.

Answer 6

its a fungal infection, u will prob need to use chemicals. essential oils might work too.