Significats de milkweed plants en anglès

Monarchs lay eggs only on milkweed plants, which grow wild throughout the United States.

Bad weather has also hampered breeding as has use of weedkillers that destroy milkweed plants on which the Monarch lay eggs.

Western monarchs are born on milkweed plants in such states as Arizona, Idaho, Utah and Washington before embarking on a seasonal migration to California.

Population losses suffered by the charismatic butterfly stem from destruction of milkweed plants they depend on to lay their eggs and nourish hatching larvae.