how do i get rid of a white powdery mildew type growth on rose bushes? or-black spots that are part of leaf?

Answer 1

Black spot is a disease roses get that can be cured by applying a fungicide. I use Bayer-3-in-1. It fertilizes, gets rid of insects and cures many plant diseases. The best part is that you mix with water, and water the base of the plant with it so there is no messy spray. The white stuff is called powdery mildew. It can also be taken care of by the Bayer 3-in-1. The best home remedy for the powdery mildew is to spray the plant with milk. Either full strength or half milk half water. The milk suffocates the fungal growth but doesn't harm the plant or anything else for that matter. Also try to water your roses so that there is enough time for the water on the plant to dry before it gets too late. Roses that are wet most of the night are more susceptible to fungal problems. I hope this was helpful! Enjoy your roses!!!

Answer 2

Oh, not the dreaded powdery mildew! Rose growers the world over feel your pain... There is really only one way to rid your plants of this icky stuff: chemicals. There are several kinds that you can get at your home and garden centers, but all are pretty harsh. Your best bet is just good old sulfur, which you get at Home Depot, Lowes, and the like. You can dust the powder on the plant, but that always seems so inexact to me. Rather, mix 8 Tablespoons to One Gallon of water. Spray mixture early in the morning, or late in the evening (never in the hot part of the day!) on new growth with your airless sprayer every 4 to 5 days until the mildew is under control. As you cut off finished flowers (always just above at the first five-leaf stem), you might want to cut off more than usual to remove mildew-attacked parts of your plant. Throw them out--don't compost! And wash your clippers in a bleach and water solution after you use them on an infected rose or you could spread the mildew to other plants, just like a cold germ. Also, make sure your rose is getting enough sun, or you'll never get rid of this stuff. One final note: Make sure you actually HAVE mildew. When it's hot, especially when the sun is shinning directly on the plant, if water from a sprinkler or misdirected hose gets on the rose's leaves, it will cause them to curl under and dry out at the edges, and it can sometimes look like the effect of the powdery mildew. When in doubt, take a stem of effected leaves to your garden center or local nursery and ask an expert. Good luck, and don't give up! Roses really are easier than they seem!

Answer 3

Aphids are small white bugs that tend to hang out on the stems mostly. They seem to be extremely attracted to Roses and Hostas. Not only are the bugs white, but they leave behind a powdery and sticky residue too. I've found similar success using both soapy water mixture and a triple-action spray (fungus, mildew, insect). I've also heard that ladybugs are the best way to get rid of Aphids, but haven't purchased any just for the occasion quite yet.

You will know if you have Aphids or just mildew when you spray the area with the soapy water or the fungicide/insecticide. You can see the bugs jumping off of the plant onto the ground.

Good luck! I've found this to be an ongoing battle.

Answer 4

Hi there, The white powdery substance is called powdery mildew. It is a fungal thing that is seen in rose bushes and crepe myrtles especially, but also on various other items. It , along with "black spot of rose", is caused by excess moisture. Perhaps your area has received a fair amount of rainfall lately? If not, it still means that the plant is too wet. A good fungicide to use on roses is called Funginex. It is made by Ortho, and available at Lowes, Home Depot, etc. Type in black spot of rose on google to understand exactly how to prevent the problem in the future. Best wishes

Answer 5

RE:
how do i get rid of a white powdery mildew type growth on rose bushes? or-black spots that are part of leaf?

Answer 6

Most roses have these types of problems. I would suggest maybe doing some research to find a better type of rose. Check with your local county extension center. Antique roses do much better than hybrid roses in terms of diseases.

Answer 7

You can get fungicides from your garden shop for this; blackspot is quite hard to remove, make sure the base of the bushes is kept clean and remove the affected leaves. Often if the roses are not getting enough sunshine you will have ongoing problems with fungus diseases.

Answer 8

you can try spraying a mix of horicultual oil and baking soda and water, oil makes the soda stick around longer, helps for downy mildew

Answer 9

spray with dish liquid and water and plant garlic underneath bushes to help prevent it it sounds crazy but it works

Answer 10

Napalm will cure pretty much anything in any garden, except for Vietcongitis.