charkha thinks clearing the green strips is as harmful as using chemical pesticides. until recently most people probably didn't even realize that the mortality doesn't only affect honeybees but about five hundred sixty species of while the beans which are really the crucial group they are simply dying out and that's leading to disaster and it turns out that the wild bees are especially important because they are much more effective pollinators than honey so only creating. a new speech the child is a ph d. student. she wants to prove that wild bees are of much greater importance for fruit and vegetable production that has previously been assumed she compares the flowers of beans and tomatoes pollinated under different conditions and with and without using bumble bees. in many greenhouses tomatoes have long since been manually pollinated. yeah here we've put some of the tomato blossoms into bags to test how the fruits develop with pollination and to test. it as. we compare the flowers on the rest of the plant with those the bumble bees can't get at to see whether it mak