Organic” does not automatically mean “pesticide-free” or “chemical-free”. Growers try to rely on non-chemical means whenever possible to control pests, but this is not always possible.
Organic pesticides tend to be safer than synthetics; but just because a product is naturally-derived does not mean that it is not toxic – it does kill pests, after all. A few organic pesticides are as toxic, or more toxic, than some synthetic pesticides. Even organic pesticides that have no effect or are only slightly toxic to humans may be very toxic to other animals