The new Mother Earth News just arrived and one article had a recipe for
a safe insecticide. I gotta try this as soon as I can find the soap,
locally if possible. I found it at the manufacturer's site. Dial.
Recipe and instructions:
Shave one-quarter bar Fels-Naptha soap (about 1 inch) into 1 quart
heated water and stir until dissolved, This is your concentrate.
Put 1 teaspoon concentrate per quart into sprayer.
This insecticidal soap is a contact poison, spray directly on the
little bastids, in the home, garden, orchard, etc. For additional
killing power, add, 1/4 Cup rubbing alcohol per quart.
Naphtha is not naphthalene. You may be old enough to remember cigarette
lighter fluid... that's one of the naphthas (a name given to several
highly volatile and flammable hydrocarbon mixtures). Naphthalene is
mothballs, two fused benzene rings. Nasty stuff.
Anyhow, I chased it down in the Household Products Database...
it lists Stoddard Solvent, aka one of the naphthas
You might want to compare with something like plain soap like Ivory
and dilute alcohol sprays, as well as a few dish detergents. California
Extension Service (I believe) in the late 80's did a series of comparisons
of efficacy and leaf damage on hort crops using Safer soap, Hiway soap,
and several other things. Winner was Ivory dish detergent, diluted.
Don't remember the reference... do remember the winner. ;-)
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