Help ease the threat placed on Monarch populations.Monarch butterflies, with their strikingly streaked caterpillars, gold-foiled chrysalises, and tiger-striped wing patterns, are one of the most beloved of all butterflies. We humans flock to witness monarch migrations, but we are also responsible for their decline. Loss of habitat and exposure to pesticides threaten monarch populations from Canada to Mexico. Grow Milkweed, the monarch caterpillar’s host plant, to create a monarch sanctuary in your own backyard. Create a companion planting of Butterfly Weed for very happy butterflies.