Home Nature Climate change and pesticides threaten monarch butterflies

Climate change and pesticides threaten monarch butterflies

by Alicia Cronin

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Studies show that the milkvetch, essential to the caterpillars’ lives, is being destroyed by new pesticides, and climate change is leading to droughts that deprive butterflies of food during migration.

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Environmentalists suggest measures such as planting milkvetch and reducing pesticide use. The butterflies’ complex life cycle makes them vulnerable to environmental changes, and their disappearance is a wake-up call for the environment.

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