Sucking insects such as aphids are very common to roses, they attach themselves to the tops and bottoms of leaves and sucking the juices of the plant, weakening it and causing it to be open to diseases.
If left untreated they will multiply quickly into a white mass and whatever you do, do not cut the flowers and take them inside.
With the trend in organic gardening so popular now a days there are a variety of organic insecticidal soaps on the market and readily purchased at garden stores ( some people make their own ).
Malathion or Diazinon are still the most commonly used insecticide sprays.
The most common beetle to the roses is the Japanese beetle, they attack a blooming flower and destroy it.
Once aphids have eaten your leaves or beetles have devoured your blooms its usually too late, but not necessarily for the plant itself.
Organic gardeners use a garlic spray to ward off beetles and planting garlic near their roses as a companion plant may also deter them.
Japanese beetle spray is available on the market along with several systematic ( absorbed through the root system ) insecticides giving protection for several weeks.
Remember there are plenty of insects that like your roses as much as you love them, and some insects are the carriers of diseases that most roses are susceptible to.
Roses are plants that can suit anyone's taste, so promote healthy growth with plenty of fertilizer and water, watch for signs of diseases and insect infestation then take the necessary actions for treatment.
Remember to wear proper clothing when spraying and Read and Follow Manufactures Directions
About the author: Eudora DeWynteroffers tips on Treatment and Insect Prevention for Roses on her blog athttp:www.gardentoolguru.com