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What changes to the rules for Dinotefuran use were made by ODA to limit future bee kill incidents and were they appropriate?

What changes to the rules for Dinotefuran use were made by ODA to limit future bee kill incidents and were they appropriate?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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What changes to the rules for Dinotefuran use were made by ODA to limit future
bee kill incidents and were they appropriate?

Massive Bee Kill Posted on June 21, 2013 by jjneal 25,000 – 30,000 bumblebees are dead in the parking lot outside a Target store in Wilsonville, southwest of Portland, Oregon. Conservation biologists are investigating the cause. The preliminary suspects are pesticides or toxic pollen. The species of tree is not native to the United States and some pollens can be toxic to bees. However, massive bee kills have not been noted in the past and the pollen has probably not changed. Trees in parking lots are sometimes treated for aphids and other phloem feeding insects that drop sticky honeydew on parked cars. In this instance, the trees were treated with the neonicotinoid insecticide, Dinotefuran a few days prior to onset of the bee kill. The neonicotinoid insecticides are at the center of a controversy over bee kills. The toxicity to bees is orders of magnitude greater than some of the notable pesticides (such as carbamate insecticides) responsible for bee kills in the last century. Dinotefuran and other neonicotinoids are Photo: jneal relatively safe for humans because they are Bumblebee Pollinating a Flower selectively toxic to insects. However, beneficial pollinators such as bumblebees are also insects and can be killed along with the targeted pests. In orchards, growers are not allowed to spray most insecticides during the period when trees are flowering. The same rules should apply to flowering trees.
Transcribed Image Text:Massive Bee Kill Posted on June 21, 2013 by jjneal 25,000 – 30,000 bumblebees are dead in the parking lot outside a Target store in Wilsonville, southwest of Portland, Oregon. Conservation biologists are investigating the cause. The preliminary suspects are pesticides or toxic pollen. The species of tree is not native to the United States and some pollens can be toxic to bees. However, massive bee kills have not been noted in the past and the pollen has probably not changed. Trees in parking lots are sometimes treated for aphids and other phloem feeding insects that drop sticky honeydew on parked cars. In this instance, the trees were treated with the neonicotinoid insecticide, Dinotefuran a few days prior to onset of the bee kill. The neonicotinoid insecticides are at the center of a controversy over bee kills. The toxicity to bees is orders of magnitude greater than some of the notable pesticides (such as carbamate insecticides) responsible for bee kills in the last century. Dinotefuran and other neonicotinoids are Photo: jneal relatively safe for humans because they are Bumblebee Pollinating a Flower selectively toxic to insects. However, beneficial pollinators such as bumblebees are also insects and can be killed along with the targeted pests. In orchards, growers are not allowed to spray most insecticides during the period when trees are flowering. The same rules should apply to flowering trees.
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