9. Future prospects
The first generation of Bt crops (MON810) have been extraordinarily
successful with a few examples of pest populations evolving resistance.
These crops are already being replaced with a second or third generation
of GM crop varieties having two or more traits/events. Even, this is not a
matter of complacency and still needs more efficacious and potent Bt
strains to meet the future requirement (Christou et al., 2006; Crickmore,
2006).