Careful seeding of the virus into the environment and letting nature spread it as and when it will, gives the most successful results. Worse still, it is adult females that survive in greatest number with immunity following biociding. This is an extraordinarily successful biocontrol by any measure. The monitoring and extensive data collection which has covered many square kilometres of different parts of Otago showed that RCD epidemics spread successfully when allowed to move with nature. At the height of the epidemics RCD typically spread at more than half a kilometre a week.
Recommendations Only use natural biocontrol spread.
Don't biocide spread. Only use fresh clean virus. Do follow-up rabbit control with other control tools soon after any RCD epidemic ceases. Killing survivors kills immunity. Seeding biocontrol is using few baits with fresh virus put out overnight after a few nights prefeeding of the same baits without virus.