At what age is it safe to use insect repellents with deet on young kids? I use 'organic' stuff but with west nile around I want the best repellant.

Deet. You can use the repellent after 6 months of age.
2 Months of age. Deet at 30% or less is approved for children 2 months of age & older applied sensibly Space here too limited to review. "Organic stuff" may sound sensible & caring yet, for example--products like Oil of Lemon Eucalyptus--yet is toxic for kids < 3 years of age. I run an organic farm, have a large brood, am no champion of chemicals but don't be mislead by "natural" There is NO "organic" Repellent.