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The Surprising Secret Weapon Against Spotted Lanternflies
yahoo.com • • science
Key Points:
- The spotted lanternfly, an invasive insect first detected in the U.S. in 2014, has spread to 19 states and the District of Columbia, threatening trees and crops like grapes and wine.
- Scientists discovered that spotted lanternflies feeding on milkweed—a plant critical to monarch butterflies—experience high mortality rates, with many dying within 24 hours of exposure.
- This finding originated from citizen observations and was confirmed through controlled experiments showing lanternflies had significantly higher death rates on milkweed compared to their preferred grapevine.
- Although the exact toxic compound in milkweed affecting lanternflies remains unknown, planting milkweed is encouraged as it supports native pollinators and may help control lanternfly populations.
- Researchers emphasize that while milkweed is not a standalone solution, combining native plant habitats with natural predators offers a promising integrated approach to managing this invasive pest.
