The University of Arizona

 


Key Points...


Soap-Detergent vs. Insecticidal Sprays


Application

Table 1: Approximate mix to produce various dilute soap sprays.
Percent dilution desired Approximate amount of soap to add to water to produce:
Gallon Quart Pint
1 2 1/2 Tbsp (-) 2 tsp (+) 1 tsp (+)
2 5 Tbsp (-) 4 tsp (+) 2 tsp (+)
3 8 Tbsp (+) 2 Tbsp (+) 1 Tbsp (+)
4 10 Tbsp (-) 2 1/2 Tbsp (+) 4 tsp (+)
(+) Will produce a solution of slightly higher concentration than indicated.
(-) Will produce a solution of slightly lower concentration than indicated.

Based on Publication by W. S. Cranshaw, Colorado State University Cooperative Extension entomologist and professor, bioagricultural sciences and pest management.

http://www.ext.colostate.edu/pubs/insect/05547.html

Use of Insecticidal Soaps in the Low Desert
Last Updated October 12, 2005
© 1998 The University of Arizona, College of Agriculture and Life Sciences, Cooperative Extension, in Maricopa County. Comments to Maricopa-Hort@cals.arizona.edu 4341 E. Broadway Road, Phoenix, AZ 85040, (602) 470-8086

http://cals.arizona.edu/maricopa/garden/html/t-tips/bugs/insecticidal soap.htm