Date: 06/19/2005

Number: 1

I have 7 common milkweed plants growing in a single row along side my
house. The row is about 25 feet long and the plants are separated by as
little as a few inches to as much as 8 feet. Across the street is the park
where there are several hundred plants, in clusters of a few to several
dozen along side a small stream.
Last weekend I recovered 9 eggs from the single row alongside the house
and none from searching hundreds of plants in the park. All nine are now 1st
instars (I brought eight of them into the house).
These nine were laid on only two plants, two of them on one leaf.

When I discovered so many in one day on these few plants I thought, if
this was a random process, I would easily find several more in the park.
Since this was clearly not not the case, I question my "randomness
hypothesis", and am left asking why would a female(s?) prefer the small
number of spread out plants near my house.

Contributed to Monarch Watch

Scarborough, ON

Latitude: 43.5 Longitude: -79.2

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