1. The aim was to evaluate the acaricidal effects of pure active components of essential oils against poultry red mite (Dermanyssus gallinae) as an alternative to chemical acaricides (organophosphates and pyrethroids).

2. The toxicities of five pure active components of essential oils (eugenol from clove bud, eucalyptol from rosemary, limonene from citrus fruits, linalool from lavender and cinnamaldehyde from cinnamon) were tested on D. gallinae females in an impregnated paper assay.

3. The active substances were dissolved in water and Tween 20 and applied at concentrations ranging from 0.002 to 0.06 µl/cm². Toxicity was expressed as a lethal dose (LD₅₀ or LD₉₀).

4. The highest mortality was observed with eugenol. The LD₉₀ was estimated to be 5.1 µg/cm² for this substance, followed by cinnamaldehyde, the LD₉₀ of which was estimated to be 11.0 µg/cm². Limonene and eucalyptol were generally less effective in controlling D. gallinae.

1.目的是评估精油纯净活性成分对家禽红螨（Dermanyssus gallinae）的杀螨效果，以代替化学杀螨剂（有机磷酸盐和拟除虫菊酯）。

2.精油（丁子香酚从丁香花蕾，桉叶油素从迷迭香，从柑橘类水果，芳樟醇苎烯从肉桂薰衣草和肉桂醛）的5种纯活性成分的毒性进行了上测试D.鸡皮在浸渍纸测定女性。

3.将活性物质溶解于水和吐温20中，并以0.002至0.06μl/ cm ^2的浓度施用。毒性表示为致死剂量（LD ₅₀或LD ₉₀）。

4.丁香酚的死亡率最高。该物质的LD ₉₀估计为5.1 µg / cm ²，其次是肉桂醛，其LD ₉₀估计为11.0 µg / cm ²。柠檬烯和桉树油通常在控制D. gallinae中效果较差。