He adds that as of the beginning of 2006, afflicted areas had been kept at around 10,000 hectares. However, he also admits that the situation within those areas has not markedly improved, because the ants reproduce too quickly. Workers exterminate half the population of ants, only to see the population immediately increase again by 30 %.
紅火蟻中心執行長、台大昆蟲學系教授石正人指出，截至 2006 年初，入侵總面積維持在一萬公頃左右，但他也坦承，疫區內部的情況並沒有顯著改善，因為紅火蟻繁殖速度太快了，防治人員努力滅了 50 %，但是馬上又回來 30 %。