and thahat's really where neonicotinoids came frfro. the idea wawas that these chemicals, although highly toxic to insects, are less acutely toxic to mammals, they're less acutely toxic to fish. they also thought, what if we can target them m inside the plant? ? if wn target them inside the plant, this is going to be better, because the animals outside the plant are not going to be affected. >> they became popular because they we used asas systemic insecticide, so you cocould appy it to t the seed and d it wouldt be put in the grndnd and t plananwould take it as itit grows, eveventually giving the planant protectionon from pests. >> they'rre found in the leave, the stems, the roots, and the pollen and the nectar. and nobody really thought about that weak link, which was toxic pollen, toxic nectar, and toxic for a long time in these crops. >> > neonicotinoids are nveve toxins affecting the nervss system of organisms. bayer r crp science says they are safe for honeybees. >>>> honeybee health in north ameririca beg t to decle e many years