control efficacy的用法和樣例：
例句
- Habituation of pest insects to repellents or insecticides may significantly reduce the effects of these control agents.
害蟲對驅避劑或殺蟲劑等產生習慣性反應可降低其防治效果。 - Difenoconazole is a kind of broad spectrum and systemic bactericide, and has better control effect against many kinds of crops diseases.
摘要苯醚甲環唑是一種廣譜內吸型殺菌劑，對多種作物的病害有較好防治效果。
