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Article: BE WARY OF GARDENING MYTHS, PRODUCT CLAIMS GYPSUM NOT NEEDED IN CALCIUM-RICH SOILS; PRUNING CUTS CAN HEAL WITHOUT A TREATMENT.(Spotlight on Home and Gardening)
- Article from:
- Rocky Mountain News (Denver, CO)
- Article date:
- September 6, 1997
CopyrightCOPYRIGHT 1997 Rocky Mountain News. All rights reserved. Reproduced with the permission of Dialog LLC by Gale Group. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Byline: Robert Cox CSU Cooperative Extension
Many consumers assume that products on the store shelf must have been tested to prove their claims. Certainly, fertilizers have to meet nutrient content requirements, and pesticides are rigorously tested for safety before EPA registration.
For some other garden products, however, no such testing is required before sale to the public.
A good example is vitamin B1 (thiamine), often sold to ``prevent transplant shock'' and ``stimulate new root growth'' when planting trees, shrubs, roses and other plants. A study in the 1930s provided the basis for such claims. Pea roots cut off from the plant were ...