Resistance
The engineered resistance is a new thing that has only been goin on in the
last 20 yrs. Prior to that the efforts were confined to plant breeders in
programs that often took 20 yrs or more to get anything. The ultimate
resistance engineer is Mother Nature. Any time there is an attack by
pathagen on a suseptible population of the large enough size the survivors
are probably resistant. This is a mistake we made in the development and
use of pesticides on plants and insects. This can all take place in a
single season. Roger
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