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Systemic pesticide for roses
On 5/4/2009 10:08 PM, Freckles wrote:
I would like to use a systemic pesticide on my roses. I've heard systemic pesticides can be very dangerous. I've tried several different sprays and am not satisfied with the results. Can anyone recommend a brand of systemic pesticide that is not so dangerous to humans and pets? Thanks, Freckles I use Bayer's Rose & Flower Care, which combines fertilizer and systemic insecticide in a dry granular form. Although I feed my roses every month from March through October, I use this product only every-other month to get excellent results. In the alternating months, I feed my roses with ammonium sulfate. You might instead consider using Bayer's 12 Month Tree & Shrub Insect Control, which is a systemic applied as a soil drench. I used this very successfully to control leaf miners on citrus. It is considered non-toxic to vertebrates (humans, other mammals, birds, reptiles, fish, etc) and is thus safe on edibles. It controls such rose pests as aphid and white fly. I haven't tried this on my own roses. You might call your local agricultural extension to ask about using it. I will be calling my county's agricultural extension when I replace my peach tree to determine if it will control flat-headed bark borers since Lindane is no longer available. NOTE: 12 Month Tree & Shrub Insect Control can be quite expensive; it cost over $20 to give one treatment each to a dwarf lemon and a dwarf orange. -- David E. Ross Climate: California Mediterranean Sunset Zone: 21 -- interior Santa Monica Mountains with some ocean influence (USDA 10a, very close to Sunset Zone 19) Gardening diary at http://www.rossde.com/garden/diary |
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