[rec.gardens] Natural Insecticides

starkid@ddsw1.MCS.COM (Lance Sanders) (08/21/90)

On 16 Aug 90 04:26:15 GMT, elmo@uhura.cc.rochester.edu (Eric 
Cabot), in Message-ID: <8963@ur-cc.UUCP> writes:
( Subject: Re: Amazing new insecticide discovered! )

>There is actually a firm in or near Victoria,  British Colubia
>that has been marketing a line of insecticidal soaps for plants, 
>cats and dogs under the name of SAFER soaps (TM).  My inside
>sources at SAFER have indicated that these are not very
>different than ordinary liquid dish-soap (with maybe a little
>bit of perfume for Fido).  As you have discovered,  these soaps
>are quite effective.


   I have an indoor light garden of 30 plants that I use in the 
bedroom as air cleaners and mood elevators.

   Somehow, a new plant I added was infected, and even though I 
"quarrantined" it for a week, the new pests ( aphids *and* 
spider mites) blitzed my garden.  They used the Safer for an
appetizer. I found a dilute solution of Dr. Bronner's Peppermint 
Soap (potassium solution, coconut-olive-peppermint oils) to be 
effective via cotton wipes and spraying.

   Some other natural approaches you definitely want to look 
into:

   Citrus Oils
   -----------

      In the J. Agric. Entomology 1(2): 95-100 (April 1984), D. 
Craig Sheppard, Dept. of Entomol., U. of Georgia/Coastal Plain 
Experiment Station/Tifton, GA 31793, wrote in "Toxicity of Citrus 
Peel Liquids to the House Fly and Red Imported Fire Ant" that:

   "Citrus peel from all sources tested exhibited an insecticidal 
action that was not due to insecticide residue. It was not 
present on the surface of undamaged fruit. The principal 
concentration of this insecticidal factor seemed to be in liquid 
in glands of the outer peel...the major component of these oils 
is limonene...it acts as a contact poison and fumigant and was 
toxic to all insects tested. This natural insecticide may prove 
valuable for treating pets and human beings for 
ectoparasites...and for pest control around households."

   Absolutely. Sheppard warned me not to use citrus oil 
concentrates on plant surfaces, because they might burn the 
plant. But the oils are great for spraying *around the base* of 
the plants, etc. One possible source: Citrikleen, which contains 
natural solvents from citrus fruits (biodegradable, of course). 
You can use it to scour tile, the bathroom, the garage, etc. 
[Product Concepts/West Conshohocken, PA/(215) 828-1826

   Neem
   ----

   Neem is a garlicky-smelling oil derived from a common shade 
tree in India (Azadirachata indica). It contains azadirachtin, 
that protects plants against 200 different insects.

   It works by making plants unpalatable to insects when sprayed 
onto foliage or in soil. If insects don't attack the plant, neem 
kills them outright, or inhibits their ability to molt or lay 
eggs. It's biodegradable and non-toxic to humans, other 
vertebrates and beneficial insects.

   Brand name in US: Margosan-O. For updated info, try writing to 
Robert Larson/Vikwood Botanicals/Box 1414/Sheboygan, Wis. 53082
-----------------------------------------------
Lance Sanders
starkid@ddsw1.MCS.COM               "Good, the more communicated
GEnie: L.Sanders6                    more abundant grows."
Voice: (312) 667-5958                                  ---Milton