Southern Crops Research Laboratory, USDA, ARS, Cotton Insects Research Unit, P.O. Drawer DG, 77841, College Station, Texas.
J Chem Ecol. 1988 Jan;14(1):391-9. doi: 10.1007/BF01022554.
Three chemicals isolated from ovipositor rinses of virgin femaleEoreuma loftini Dyar (Mexican rice borer) moths were identified as (Z)-13-octadecenyl acetate (I), (Z)-11-hexadecenyl acetate (II), and (Z)-13-octadecenal (III) in the approximate ratio 8∶1∶1.3, respectively. Preliminary tests indicate that in laboratory bioassays, these chemicals in the above ratio induce the same activity response as heptane extracts of rice borer ovipositors. Only one combination of two chemicals (I and III, 6.2∶1 ratio) elicited a similar response. Individual chemicals elicited no response. In field tests, the average number of male rice borer moths caught per night over a five-night period was the same in traps baited with 200-600-μg quantities of the 8∶1∶1.3 ratio of chemicals dispensed from strips of filter paper as with traps baited with virgin females. The two-component mixture (I and III, 6.2∶1 ratio) was not active in the field.
从处女雌蛾 Eoreuma loftini Dyar(墨西哥稻螟)触角分泌物中分离出的三种化学物质分别鉴定为(Z)-13-十八烯基乙酸酯(I)、(Z)-11-十六烯基乙酸酯(II)和(Z)-13-十八烯醛(III),其比例约为 8∶1∶1.3。初步试验表明,在实验室生物测定中,这些化学物质在上述比例下诱导出与稻螟触角正己烷提取物相同的活性反应。只有两种化学物质(I 和 III,6.2∶1 比例)的组合能引起类似的反应。单独的化学物质没有反应。在田间试验中,用 200-600-μg 数量的 8∶1∶1.3 比例化学物质从滤纸条上分配的诱芯诱捕 5 夜每晚捕获的雄性稻螟蛾数量与用处女雌蛾诱捕的诱芯相同。由两种成分组成的混合物(I 和 III,6.2∶1 比例)在田间没有活性。