Someone mentioned earlier the use of a wetting agent when spraying Cygon.
This is very helpful in aiding
absorption into the plant tissues. I have used Cygon both with and without
a wetting agent. I had MUCH better
success with the wetting agent. Also, for those who use off-brand
dimethoate, take notice that the concentratu=ion of active ingredients may
differ from Cygon, and even using their mixing instructions may leave you
with a weaker solution than Cygon.
I have also been told that spraying in the warmest part of the day is
helpful in absorption, although I cannot verify this.
Does anyone know if this is true with pesticides? This is based on the idea
that for every 10 degree increase, chemical activity doubles.
1VP Miami Valley Iris Society
AIS Region 6 / SW OH Zone5