Bt corn & monarch flutterbyes

mike richardson (mrichardson@tn.nrcs.usda.gov)
Fri, 08 Oct 1999 10:21:13 -0500

Item #1 (page 14)

(exerpts)

In a study relased by Cornell Univ., 44% of Monarch larvae died after
being fed milweed leaves dusted with pollen from Bt corn.

The study's results have been criticized because no precise measurements
were made of the amount of Bt pollen fed to the larvae.

Corn pollen is heavy; thus it usually moves less than nine feet.

....planting a milkweed refuge would do more to encourage Monarch
butterflies than any other strategy.

Sources: www.epaonline.com and notes from USDA Bt Insect Resistance
Management Workshop

Item #2 (pages 6-7)

Soil organic matter cannot be increased significantly by addition of
manure and use of conventional tillage. No-till on the other hand, can
have dramatic effects on organic matter increases.

Source: USDA NRCS soil Quality Institute Tech Note,
www.statlab.iastate.edu/survey/SQI/pdf

Item #3 (page 5)

Bt corn vs non-Bt corn

Contact Dan Towery towery@ctic.purdue.edu

Item #4 (page 4)

Strategies for preventing Bt resistant insects

Contact Dan Towery (as above)

Son of Richard

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