The use of glyphosate in weed killers decreases monarch populations by eliminating essential milkweed plants, impacting the butterfly's habitat and food sources.
Glyphosate, the active ingredient in weed killers like Roundup, affects monarch populations indirectly by eliminating milkweed plants that are crucial to the monarch's lifecycle. Farmers spray glyphosate to kill weeds on genetically modified crops, leaving monarchs with reduced habitat and food sources, leading to declining populations.
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