Acephate (Orethene) – has systemic activity, thus it will move through the foliage of the plant and reach those aphids that are hidden within and beneath the foliage.(This listing is alphabetical and not in order of preference.) Here is a listing of some of the insecticides I have used with good results at gaining control: The last straw option, as I call it, is to break out an insecticide and spray the rose bushes and/or plants. If under a significant attack, this method will likely not give the desired results quickly enough. Lady beetles or ladybugs, their larvae in particular, and green lacewings and their larvae is another way how to get rid of aphids on roses however, they can take some time to gain control. Most organic fertilizers will fit into the time-release category. Caring for roses with aphids like this means there is not a big push of nitrogen to the plants or bushes right after feeding them, which the aphids find most attractive for their reproduction. This may need to be continued for several days to keep the aphids off the plants and/or bushes.Īphids are big nitrogen feeders, thus another way to help control aphids on roses is to use slow or time- release (urea based) nitrogen fertilizers. The spray of water will need to be fairly strong so as to knock the aphids off but not so strong that it defoliates the rose bush or plant – nor would one want to damage the blooms with too hard a water spray. Using a hose end water sprayer, spray the foliage and blooms down well. Once on the ground, they will be easier prey for the garden good guy insects.Īlso in the lighter cases of aphids on rose bushes, I have had some success with the strong water spray method. In light cases, aphids on roses can be picked off by hand and squished or sometimes a quick tapping of the bloom or foliage will knock them to the ground. Controlling aphids on roses is well worth the effort to keep beautiful roses. The aphids that attack rose bushes are usually either Macrosiphum rosae (Rose aphid) or Macrosiphum euphorbiae (Potato aphid), which attacks many other flowering plants as well. Aphids like to visit our plants and rose bushes every year and can form a major attack on them fairly quickly.
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