The discovery, reported in Southwestern Entomologist, could be used to develop a trap-based system for detecting milkweed
weevil and monitoring their dispersal and movements across landscapes, Suh says.
Oberhauser supplied data on the numbers of monarch eggs per milkweed
plant in non-field milkweed
patches that an army of volunteers had been collecting for about a decade.
The Agricultural Research Service (A.R.S.) has patented a key step in the process; it is using zinc chloride to catalyze the conversion of milkweed
oil's triglycerides into the UV-absorbing cinnamic acid derivatives.
stems were supplied by Natural Fibers Corporation, Ogallala, Nebraska.
When spring arrives, milkweed
begins to bloom in North America.
He explained that milkweed
is a host plant where female butterflies lay their eggs.
"I knew for absolutely certain that come the right day in October, a day when the sun is strong in a sky of the richest blue and we're still warm with the last touch of summer, I can come here and--again, for absolutely certain--find milkweed
pods and their miraculous beauty.
Monarchs will only lay eggs on milkweed
because that is the only food their caterpillars will eat.
Wild Card Quilt--Taking a Chance on Home by Janisse Ray (Milkweed
Editions, www.milkweed.org, 2003) is a book for anyone who ever thought (even with horror) about going home for more than just a visit.
isn't your average weed; in fact, I feel guilty calling it a weed at all.
Every War Has Two Losers: William Stafford on Peace and War, edited by Kim Stafford; Milkweed
In the Okanagan, the butterflies are lured to Mennell's organic orchard by milkweed
, the only plant on which a monarch female will lay her eggs.