"Pesticides include both insecticides and herbicides"

In an article titled “How GMOs Cut The Use Of Pesticides — And Perhaps Boosted It Again” on NPR.org, Dan Charles writes “Pesticides include both insecticides and herbicides”.

To this point, I have used ‘pesticide’ and ‘herbicide’ as disjunct terms, rather than treating pesticides as being inclusive of herbicides, thinking of ‘pesticide’ as referring to any chemical agent applied for the purpose of controlling animal pests, but this may not be strictly correct.

In any case, it is at variance with one authoritative interpretation of these terms.