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TOL eae oe Sa
SHOP Scu yn an
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British Columbia Agriculture

OISTRICT OFFICE

17720 — 57th Avenue
Surrey, BC
V3S 4P9

July 16, 1981

Mrs. Yera Harvey
3540 Devon Road
Port Coquitlam, BC

Dear Mrs, Harvey:

During our telephone conversation of July 14, 1981, you express-—
ed an interest in the toxicity of ctriforine (Funginex) fungicide.

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

Before this material was registered for use, it would have been
tested for short and long. term health hazzards and approved by
Health 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 sub-economic level, if triforine was
nec available for the control of mummy berry disease.

,

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

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

urs truly

eK LE

-" ST.HLLL
District Horticulturist

JTH/1mb

cce.W.E.A.Wickens 23