Want to know:

After four years of physical control efforts, the ecologists evaluate the abundance of each type of grass in the test plot. They discover that, although there is less fountain grass in their test plot than when they began, there has not been a significant increase in native hardstem lovegrass.(e) Assuming the ecologists wish to continue with an IPM approach and continue their removal efforts on the test plot for another four years, explain one modification that could be made to the research method you identified above that could alter their results.

Get a detailed, AI-powered explanation for this question and thousands more on StudyFetch.