Let's talk about Monarchs!
Moderator: Monarch Watch
Paul Cherubini wrote:Sometimes ants eat monarch eggs and small larvae, especially at night. But other times I see larvae and ants coexisting on the milkweed plants. So it's hard to generalize, but most of the time ants WILL eat monarch eggs and small larvae.
About the only effective solution I know is to remove the monarch caterpillars as best you can and then spray the milkweed patch with Ortho Malathion Plus insecticide (available at Walmart and Kmart) diluted 2 teaspoons per gallon of water. 10 minutes after spraying, rinse the treated plants off with plenty of fresh water from a garden hose. When the milkweeds have dried off, put the monarch caterpillars back on the milkweeds. This treatment also gets rids of earwigs, aphids, spiders and other predators of monarch eggs and caterpillars.
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