What eats the leaves off of rose bushes?
Question:One of my rose bushes pretty much has no leaves left. What ever is eating it is eating like circles and half circles out of the leaves. I dont want my bush to die what can I do? I have roses on the other side of my porch that nothing is touching. Any tips or ideas on this. I live in Michigan if that helps at all.
Answers:
There's several pests that can be eating your rose leaves.
Leaf-Cutter Bees: Small, perfectly circular holes cut into the foliage of your rose is caused by the Leaf-Cutter Bee. It uses the leaf cuttings to build its nest. Chemical controls are not necessary as they do not harm the plant and are rarely more than a minor nuisance.
Pear slugs are slimy, dark green and about ½ inch long. They are the larvae of the sawfly. You will most often find them in the spring eating holes in your rose leaves from the undersides. Slugs can do a lot of damage in a short amount of time, so act quickly. Galic spray is great for getting rid of slugs, cutworms, wireworms, & whiteflies. Blend well 1garlic bulb & 1 onion add 1Tbsp cayenne pepper & 1 quart water. Steep ingredients for 1 hr, then strain & add 1 Tbsp dish soap and your non-toxic spray is ready to use.
Long-term prevention & deterrants for slugs: Spread coffee grounds( in moderation) around base of bush. Use repellent mulches: Wormwood, prostrate rosemary, basil, rue, hot pepper, acacia bark, and oak leaves are disliked by snails and make good repellent mulches. Wormwood is also effective as a spray. Use barriers with scratchy material, hydrated lime, wood ash, sharp sand, crushed egg shells, or diatamaceous earth.
A Japanese beetle infestation can be quite distressing as they have an insatiable hunger for rose blooms and sometimes even foliage. These pests lay eggs on your lawn and around your roses and return year after year. You can use a neem-based product to get rid of them or you can position a bowl filled with dish soap and water under the rose and tap lightly. They should fall out and drown in the solution. This procedure seems to be most effective in the morning or evening when the beetles are resting. Another procedure is to spray infected plants with a mixture of 1 tablespoon isopropyl alcohol to a pint of pyrethrin mixture every 3 to 5 days. Long-term prevention for Japanese Beetles is simular to that used to kill the Rose chafer larvae... biological controls such as beneficial nematodes or a product called "milky spore."
Earwigs: If you see signs of chewing on your rose blooms and young leaves, you may have earwigs. They are a large and soft-bodied yellowish-brown insect with a pair of curved pincers. They hide during the day and come out at night to climb into your rose blooms and feed. Traps such as corrugated cardboard; rolled up newspapers; small cans with openings punctured in the ends can be collected in the morning & the earwigs disposed of.
Caterpillars, the larvae of moths and butterflies. Some, such as budworms, attack only the flowers; others eat the leaves and stems. These can be picked off & discarded. Or sprinkle with flour when the plant is wet & they'll become coated with flour, suffocate & fall off the plant.
Rose aphids seem to go after the rose buds & suck the life out of the plant. Knock them off with a strong spray of water & use baby shampoo or mild dish detergent spray. The recommended dilution rate is 1 oz. Ivory Dishwashing Liquid to 1 gallon of water
probably japanese beetles.go to your home depot, they can help.
What is eating your rose bush is called rose slug...Spray your bush with a solution of 2-4 drops of dish soap and water (mixed/shaken throughly) make sure to get underpart of leaves... Or you can buy a non poison insecticide, from your nursery. They will be able to give you a lot more info also...
http://windywillow.blogspot.com/2006/07/...
Japanese Beetles. Go to Walmart, or anywhere. They have a powder to sprinkle on them to keep the bugs off.
Go to:
extension.missouri.edu/explore...
for all your questions about roses & then some more.
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