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Depression: 21st Century Solutions + The Dark Side of Wheat

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Abstract Title:

Non-target effects of clothianidin on monarch butterflies.

Abstract Source:

Naturwissenschaften. 2015 Apr ;102(3-4):19. PMID: 25839080

Abstract Author(s):

Jacob R Pecenka, Jonathan G Lundgren

Article Affiliation:

Jacob R Pecenka

Abstract:

Monarch butterflies (Danaus plexippus) frequently consume milkweed in and near agroecosystems and consequently may be exposed to pesticides like neonicotinoids. We conducted a dose response study to determine lethal and sublethal doses of clothianidin using a 36-h exposure scenario. We then quantified clothianidin levels found in milkweed leaves adjacent to maize fields. Toxicity assays revealed LC10, LC50, and LC90 values of 7.72, 15.63, and 30.70 ppb, respectively. Sublethal effects (larval size) were observed at 1 ppb. Contaminated milkweed plants had an average of 1.14±0.10 ppb clothianidin, with a maximum of 4 ppb in a single plant. This research suggests that clothianidin could function as a stressor to monarch populations.

Study Type : Environmental
Additional Links
Problem Substances : Pesticides : CK(827) : AC(95)

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Sayer Ji
Founder of GreenMedInfo.com

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Depression: 21st Century Solutions + The Dark Side of Wheat

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