This month, more than 100 natural food brands, including Clif Bar and Stonyfield, joined together in a drive to encourage the Obama Administration to ban pesticides linked to bee deaths. The culprit, they say, is neonicotinoids, which is a class of chemicals commonly called neonics, introduced in the 1990s, that are mostly coated onto seeds to help farmers control insects. …Yet, as activists continue to campaign to get neonics banned, news from Europe, where a two-year moratorium went into effect last year, suggests that farmers are unable to control pests without them. Partly in desperation, they are replacing neonics with pesticides that are older, less effective and demonstrably more harmful to humans and social insects, and farm yields are dropping. Read more.