Cost Trends for Bacillis thuringiensis in the Maine Spruce Budworm Control Program
- Irland, Lloyd C.
To render Bacillus tburingiensß
Berliner suitable for widespread use
in spruce budworm, Cboristoneura fumiferana
Clemens, control, it was necessary to
achieve significant improvements in reliability
and efficacy along with significant reductions
in its cost. In the Maine spruce
budworm program, progress in these areas
made B. tburingiercis cost-competitive with
chemical insecticides by the mid 1980's.
Total cost of applying -8. tburingiensß fellr b ,v
tvvo-thirds from 1980 to 1985. Intensive
work by manufacturers, university and federal
scientists, and spray program managers)
facilitated by extensive regionwide sharing
of information, contributed to this resul¡. Introducing
forestry pesticides to operational
use is currently taking too long. Cuts in federal
forestry budgets have reduced our capacity
to solve these problems in ¡he future
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