Identifying Rose Slugs And Effective Rose Slug Treatment
Rose slugs are small round insects with long legs and two pairs of wings. They are very common pests of roses in California. They feed on the flowers, which results in reduced flower production and decreased value for the growers. They cause damage to most varieties of roses including: Japanese, African, Dwarf, Redwood, California and other hybrids such as ‘Dwarf’ redwoods or ‘Redwood’.
Most species have several generations per year.
The name “rose” comes from the Latin word rosa meaning rose and lucere meaning flower. These little creatures are actually beetles, but they look like tiny roses because their larvae resemble miniature ones of the real thing. Their scientific classification is Arilus cristatus (the common rose beetle). There are many different types of these little bugs, each with its own life cycle and feeding habits.
Some species only live one season while others may survive through three or four years.
Most species of rose beetles are not dangerous to humans unless they bite us, but some do carry diseases such as powdery mildew and botrytis. The best way to keep them away from your plants is to use insecticidal soap when cleaning off the petals of the flowers. You can buy it at garden centers or online. Using gloves while handling the rose petals will also help to prevent any disease.
Rose slugs are not picky eaters. They love flowers, but they also enjoy leaves and stems. They bore through the tissue of plants and suck out the nutrients. This causes leaves to wilt, turn brown and die.
It can also cause flowers and buds to drop off before they open.
Rose slugs are most active in the spring and summer when they spend most of their time eating. They lay their eggs along the stems of the plants, and the eggs overwinter until the next year. The best way to get rid of them is to remove all of the leaves and destroy them or put them somewhere else so they won’t come back the next year to eat your flowers again.
The best way to identify the rose slug is to look at its shape. It is a little black or brown beetle that is about the size of a raisin. They are heptagonal in shape and have long legs with a round body. The larvae look very much like the adult except they are smaller and more slender.
If you find one rose slug, there are probably many more in the area so be sure to check your garden often for signs of them and their damage.
To effectively treat your garden for rose slugs, you should remove all leaves and destroy them to prevent the larvae from hatching. Most of these pests will live in the thatch of your lawn, so be sure to remove it and dispose of it as well. Some people recommend putting a layer of gravel around the base of the plants since this is an unfriendly environment for them to live in. They will die since they can’t burrow into the ground.
There are also chemical treatments you can buy at any garden supply store, or you can make your own solution of one part dishwashing liquid to four parts water and spray the plants thoroughly.
Rose slugs can be a real problem in certain areas where there is not much rainfall. They need moisture to breed so if you have a dry summer, you probably won’t have too many problems with them. They enjoy the moisture that comes from your garden hose so try not to over water. If you have a lot of problems with rose slugs, you can also try spreading a thick layer of mulch around the base of your plants.
This will prevent the soil from getting to damp and they will not be able to burrow into the ground. The other benefit of mulch is it will keep down the weeds around your flowers so you won’t have as much work to do later.
There are many other types of insects that feed on your plants, so if you are seeing signs of damage and you don’t have any rose slugs, try looking for these other pests. Aphids look like little green flies that suck the sap out of the tender leaves. They cause the leaves to look speckled and they will turn yellow and fall off. You can purchase a special hose end sprayer at any garden center and fill it with apple cider vinegar.
This will kill the aphids but it won’t harm your plants.
A common pest is the chafer grub. It looks like white worm with a black head that feeds on the roots of your plants. They also produce a toxin that will harm the rest of your plants causing them to wilt and turn yellow. You can dig up your plants and throw away the dirt to get rid of the grub.
To prevent them from hatching in the first place, you should put a thick layer of mulch around the base of your plants since this will prevent moisture from getting through to the soil.
Snails and slugs are also fond of your plants. They leave a silver trail behind them as they travel and they will completely destroy your flowers and leaves if you don’t get rid of them. You can purchase little copper strips to put around the base of your plants. The snails or slugs will crawl along them and the copper will zap them when they touch it, killing them instantly.
You can also spread slug bait around your yard since there are certain types that work better in the garden than others. Be careful when using slug bait, they are poisonous to humans as well so store it somewhere where your children and pets can’t get to it.
If you see any of these pests, or their signs, take immediate action to prevent the problem from getting any worse. The best way to keep pests away is by maintaining the health of your garden and your plants.
Watering properly is very important. If you keep your plants consistently well hydrated, they will be much stronger and will be much less likely to get sick or attract pests. Be sure to water everything, even if it doesn’t look like it needs it. The best way to check is to stick your finger into the soil about a half inch.
If it’s dry, then it’s time to water.
Using natural fertilizer is also vital to the health of your plants. You can either make your own or there are several brands on the market that are very good. It’s ok to use fertilizer in the early stages of planting but after that, it should be natural. Seaweed is a great natural fertilizer and there are several brands of it on the market.
Using it in your garden will help keep your plants strong and healthy.
Roses are beautiful but they need special attention. Don’t prune them severely all at once, only do a little at a time. Don’t over water or over fertilize. They need to be treated gently but they will reward you with their beauty.
The Perfect Wedding
It’s an exciting time in your life when you get married and you want everything to go perfectly. The wedding itself is easy; it’s what comes after that can be stressful.
Sources & references used in this article:
Sawflies injurious to rose foliage by W Middleton – 1922 – books.google.com
Insect pests of roses by K Stroom, J Fetzer, V Krischik – 1997 – conservancy.umn.edu
The influence of farming practices on slugs and their predators in reduced-tillage field crops in Pennsylvania by MR Douglas – 2012 – etda.libraries.psu.edu
Why it is time to look beyond algal genes in photosynthetic slugs by C Rauch, J Vries, S Rommel, LE Rose… – Genome Biology and …, 2015 – academic.oup.com
… of cultivation techniques and methods of straw disposal on predation by Pterostichus melanarius (Coleoptera: Carabidae) upon slugs (Gastropoda: Pulmonata) in an … by WOC Symondson, DM Glen, CW Wiltshire… – Journal of Applied …, 1996 – JSTOR
Angiostrongylus cantonensis as a cause of cerebrospinal disease in a yellow-tailed black cockatoo (Calyptorhynchus funereus) and two tawny frogmouths (Podargus … by DJ Monks, MS Carlisle, M Carrigan, K Rose… – Journal of Avian …, 2005 – BioOne
Experimental and numerical evaluation of slugs in a vertical air–water flow by J Jaeger, CM Santos, LM Rosa, HF Meier… – International Journal of …, 2018 – Elsevier
Chemiluminescence of luminol in the presence of iron (II) and oxygen: oxidation mechanism and implications for its analytical use by AL Rose, TD Waite – Analytical chemistry, 2001 – ACS Publications