Mowing for Monarchs
Gabe Knowles and Liz Schultheis
Gabe Knowles
Elementary Teacher
Whitehall District Schools
Liz Schultheis
Co-founder of Data Nuggets
Kellogg Biological Station
Research Experience for Teachers (RET)
Britney Christensen
4th Grade Teacher
Whitehall District Schools
Doug Landis, PhD
Researcher
Michigan State University
Nate Haan, PhD
Researcher
University of Kentucky
Cutting milkweed attracts egg laying monarchs and may make milkweed stems safer.
Monarch caterpillars survive at higher rates on regrowing stems than on undisturbed ones.
We think monarchs may have historically benefitted from mechanical weed control in corn and soy fields in the midwest.
ReGrow Milkweed for Monarchs is a citizen science study testing ways to improve habitat for monarch butterflies.
Summer 2020
Summer 2021
Mowing for Monarchs
Data Activity!
Experiment 1�Comparing number of caterpillars and eggs observed between control and treatment milkweed patches
Experiment 1�Comparing number of caterpillars and eggs observed between control and treatment milkweed patches.
Each envelope represents one milkweed patch for a given week. There are ten cards inside each envelope to represent ten observations in that milkweed patch.
Control Milkweed Patch is unmowed
Treatment Milkweed Patch is mowed
Experiment 1�To compare, we will count the number of caterpillars and eggs over the course of four weeks.
Monarch Caterpillar
Monarch Egg
No Data
Experiment 2�Comparing number of monarch predators observed between control and treatment milkweed patches
Experiment 2�Comparing number of monarch predators observed between control and treatment milkweed patches.
Each envelope represents one milkweed patch for a given week. There are ten cards inside each envelope to represent ten observations in that milkweed patch.
Control Milkweed Patch is unmowed
Treatment Milkweed Patch is mowed
Experiment 2�To compare, we will count the number of predators over the course of four weeks.
There are six different predator cards
No Data
Experiment 1
Experiment 2
Pilot year
Citizen Science
Thank you!