AREC173 Lecture 21: Arec 173 - lecture 21
2 Dec 2016
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Tedtalk - why bees are disappearing: neonicotinoids, loss of owers, monocultures, blood sucking pests. Neonicotinoids pesticides: neonic chemicals: acetamiprid, clothiandin, dinotefuran, nithiazine, thiaclopid, thiamethoxam, taken up and spread through plant tissues. !1: canola seeds in canada usually treated with a cocktail of nutrients and prophylactics. This depends on the extent of self-pollination versus cross pollination and the importance of healthy seeds for food production (ex. potatoes): colony collapse disorder. Proponents of neonics: agro-chemical companies, some farming groups. Usda found good alternatives but has been silenced, lundgrun). seed treatments are safer than spraying on whole. Eld, and consistent with no till. use of pesticides as prophylactics reduces interest in integrated ecological approaches. decrease in colonies has stabilized. U. s. says, what"s the problem then? decrease in colonies is still too high and too great a risk. accumulation in water bodies and wetlands leaves aquatic insects vulnerable. Thursday, december 1, 2016: pollinators are incredibly important in places such as.
