In 1927, entomologists at the CES introduced two wasps from Australia as natural enemies of a major citrus pest, the citrophilus mealybug, saving growers in Orange County $1 million in annual losses.

• 1927年，环境研究中心的昆虫学家从澳大利亚引入了两种黄蜂，它们是柑橘害虫粉蚧的天敌，由此挽救了橘子镇的柑橘种植者们，并且从每年的亏损中挽回一百万美元。