In the years that followed the research of the late 20s, more objections to biological control were raised by environmentalists, including the concept that it is risky to introduce any new species to an already compromised ecosystem, even to destroy a previously introduced one.
In the years that followed the research of the late 20s, more objections to biological control were raised by environmentalists. Among them was the potential use of gorse as a'nursery' to shelter native seedlings, and the concept that it was wrong to introduce any new species to an already compromised ecosystem, even to destroy a previously introduced one.