British Columbia . Agriculture

OISTRICT OFFICES

17720 ~ 57th Avenue
Surrey, BC
V3S 4P9

July 16, 1981

Mrs. Vera Harvey
3549 Devon Road
Port Coquitlam, BC

Dear Mrs, Harvey:

During our telephone conversation of July 14, 1981, you express-
ed an interese in rhe toxicity of triforine (Funginex) fungicide.

As you will gacher from the attached information sheec, triforine
shows a very: low acute oral LD50. for mammals (rats, mice). If this
dosage is related to a 150 15 human, a comparable dose of product
would be about 2 liters of Funginex. ~

Before this material was registered for use, it would have been
tested for shore and long. term health hazzards and approved by
Realth and Welfare Canada. Testing of triforine and like materials
is very time consuming, and costly, but is considered necessary by
Health and Welfare Canada before registration for use is granted.

. AS you well know, blueberry production in the Fraser. Valley
would likely be reduced to a suh~economic level, if triforine was
het available for the control of Mummy berry disease.

As wet soil conditions during April prohibic the use of ground
operated spray rigs in most blueberry plantings, aerial spraying is
the only effective applicarion method at this time. °

If I can be of any further assistance in this matter, please
feel free to contact me. ‘

RPE Fruly,
aX 2
“J.T. Hill
District Horticulcurise

JTH/1mb

ce.W. EA. Wickens