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- From: Margaret Lauterbach <melauter@earthlink.net>
- To: gardenwriters-on-gardening <gwl-g@lists.ibiblio.org>
- Subject: Re: [gwl-g] aphids
- Date: Sat, 17 Apr 2004 11:09:05 -0600
Since Bacillus thuringiensis affects the digestive system of caterpillars and only caterpillars, I don't know why it would affect aphids. BT var. tenebrionis does kill Colorado potato beetle larvae, but... Perhaps the force of your spray just knocked them off.
Aphids are usually not a serious problem, unless you have a very young maple and an extensive infestation. If you do, I've had good success against aphids with BT- bacillus thurigensis. I was originally going after other pests, particularly cabbage worms, and discovered that it radically reduced the aphid population as well. BT is a very safe biological insecticide, fairly inexpensive, & easy to use and spray on. I also had very good success with Safer insecticidal soap on large infestations on my tomatoes & broccoli.
Both PlanetNatural.com & GardensAlive.com have a good range of bio-control products, including beneficial insects. You should be able to find several very different kinds of aphid controls that suit your needs there.
Tony LeMay Backyard-Habitat.com
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Margaret L
Gardening in Intermountain West and Handicapped gardening
http://www.margaretlauterbach.com
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Re: [gwl-g] soil pH
, (continued)
-
Re: [gwl-g] soil pH,
John Keslick, 04/16/2004
- [gwl-g] Testing Soil & black walnuts, Melanie, 04/16/2004
- Re: [gwl-g] Testing Soil & black walnuts, Jo Ellen Meyers Sharp, 04/16/2004
- Re: [gwl-g] Testing Soil & black walnuts, Carolyn Ulrich, 04/16/2004
- Re: [gwl-g] Testing Soil & black walnuts, Gene Bush, 04/17/2004
- [gwl-g] aphids, Nancy Stedman, 04/17/2004
- Re: [gwl-g] aphids, TONY LEMAY, 04/17/2004
- Re: [gwl-g] aphids, Jeff Lowenfels, 04/17/2004
- RE: [gwl-g] aphids, miranda, 04/17/2004
- Re: [gwl-g] aphids, Jessie Stephens, 04/17/2004
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Re: [gwl-g] soil pH,
John Keslick, 04/16/2004
- Re: [gwl-g] aphids, Margaret Lauterbach, 04/17/2004
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