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How to Get Rid of Greenfly on Roses
How to Get Rid of Greenfly on Roses. Greenfly is one name for a type of aphid that commonly plagues roses. In large numbers, these insects can cause roses to lose vigor and eventually die. In addition to problems stemming from the insects' feeding, aphids may spread plant diseases and secrete honeydew, which can contribute to fungal diseases on...
Greenfly is one name for a type of aphid that commonly plagues roses. In large numbers, these insects can cause roses to lose vigor and eventually die. In addition to problems stemming from the insects' feeding, aphids may spread plant diseases and secrete honeydew, which can contribute to fungal diseases on roses. There are organic and chemical methods that you can use to control this pest.
Things You'll Need
Garden hose
Insecticidal soap
Systemic insecticide
Ladybugs
Spray the rose canes with a strong burst of water from your garden hose. This should remove many of the greenfly.
Spray the roses from top to bottom, including the underside of all leaves, with insecticidal soap. This helps kill insects remaining on your roses.
Repeat the insecticidal soap application as soon as the label advises you are able to do so. If after a few applications, your roses are still crawling with greenfly, use a systemic insecticide. You can find these at many garden retailers. The insecticide is usually combined with rose food.
Tips & Warnings
If you'd rather not use any insecticide at all, you can also try spraying roses with the watering hose every day to dislodge greenfly, plus purchase ladybugs (also called lady beetles) from a garden store to release on and around the plants. These bugs are a natural predator of aphids.
