whats eating my roses the leaves are getting black spots on them?

Answer 1

Black spot is a fungus disease that appears as round, black spots on the leaves of rose plants. There may be a distinctive yellow band around the black spot and leaves may fall prematurely. Left untreated, black spot may infect young canes.


Steps:
1. Look for black spot on the leaves of rose plants. This fungus disease will appear as round, black spots ringed by yellow tissue.

2. Water roses only from below. Try not to get the foliage wet when you water.

3. Water in the early morning hours so the rose plant has time to dry during the day.

4. Rake up any fallen leaves from the soil surrounding the plant. Black spot as well as other fungus diseases are transmitted by water splashing back up onto the leaves and stems.

5. Remove any diseased leaves. Pick off and destroy any foliage that has evidence of black spot. Dispose of infected foliage in a sealed plastic bag.

6. Dust roses infected with black spot with sulfur powder. Sulfur will not kill the fungus spores, but it will prevent a new generation from germinating.

7. Spray a solution of 1 tsp. baking soda mixed in 1 qt. warm water in the early morning hours.

8. Spray roses with a dormant oil or Bordeaux mixture when plants are dormant (usually in winter).

Tips:
Black spot is very difficult to eliminate once it appears. Prevention is the best form of defense.

Spray organic fungicides early in the day for best results.

Chemical fungicides are also available for the control of black spot.

Always use the least toxic method of pest control first.


Warnings:

If you choose to use a chemical fungicide, always wear protective clothing and safety gear, including a long-sleeved shirt, long pants, neoprene gloves, goggles and a respirator.

Answer 2

The black spots on the roses leaves is a form of mildew, you can take vinegar and water and spray it on the plants. The vinegar does not hurt the roses and is good to keeping pests off them too. Mix one part (1 cup) vinegar to two parts (2 cups) water. Avids and all are gone, even the mildew.

Answer 3

That is a fungus - it's pretty common on roses. You may want to spray them with a fungicide. In addtion, you may also want give them a systemic fungicide that is taken up into the plants. It won't make the black spots that are already there go away, but it will prevent more from occuring once it is well into the plant's tissues.

Answer 4

Answer
get to a local garden center/nursery and quiz them on black-spot disease on roses. buy some orthenex (a systemic combination insecticide/fungicide)or similar recommended product. spray about every 2 weeks as per labeled directions for roses. remove all yellow leaves w/black spots(even those on the soil) and put them in the trach.

Answer 5

Do you have rabbits where you live? They're the ones who eat up our rose garden over here. I'm not sure about the black spots, but rabbits are usually the ones who eat up rose heads.

Answer 6

Mist your roses with a solution of vinegar and dawn dish detergent. The vinegae will kill the mite that is causing the spots and the dawn will keep them from coming back.