In recent years, the number of monarchs has decreased by 90% since peaking in the mid-1990s.
In recent years, the number of monarchs has decreased by 90% since peaking in the mid-1990s.
Milkweed, the only food source of monarch caterpillars, has also declined. Use of herbicides like Monsanto’s Roundup, which are toxic to milkweed plants, is up 1900%.
Milkweed, the only food source of monarch caterpillars, has also declined. Use of herbicides like Monsanto’s Roundup, which are toxic to milkweed plants, is up 1900%.