Corrales Narciso, Campos Mercedes
Department of Agroecology, Estación Experimental del Zaidín, CSIC, Profesor Albareda no 1, Granada E-18008, Spain.
Chemosphere. 2004 Dec;57(11):1613-9. doi: 10.1016/j.chemosphere.2004.09.019.
The influence that different styles of olive-orchard management (conventional, integrated, and organic) exert on the predator Chrysoperla carnea has been studied to strengthen this insect's role in the integrated management against pests. For this, the adult chrysopid populations were determined by McPhail traps, and laboratory examinations were made of certain biological characteristics of the first generation of adults captured in each of the olive orchards studied. The chrysopid populations increasing significantly during some months in the integrated and organic olive orchard. The most abundant species in all the zones was C. carnea, representing 95% of all captures in the conventional olive orchard. It was found that the larvae from the integrated olive orchard took longer to develop, while the pupae from the organic orchard evolved most rapidly to adulthood. The highest mortality rate was for larvae in the conventional olive orchard. The fecundity of the females from the organic orchards was significantly greater, presumably due to their greater longevity and shorter pre-oviposition period. These results can be used to improve conservation strategies and to increase C. carnea populations and their predatory activity.
为强化肉食性昆虫普通草蛉在害虫综合防治中的作用，研究了不同橄榄园管理方式（传统、综合和有机）对其的影响。为此，通过麦氏诱捕器测定草蛉成虫数量，并对在所研究的每个橄榄园中捕获的第一代成虫的某些生物学特性进行实验室检测。在综合管理和有机管理的橄榄园中，草蛉数量在某些月份显著增加。所有区域中最常见的物种是普通草蛉，在传统橄榄园中占所有捕获量的95%。研究发现，综合管理橄榄园中的幼虫发育时间更长，而有机橄榄园中的蛹发育至成虫的速度最快。传统橄榄园中的幼虫死亡率最高。有机橄榄园中的雌虫繁殖力显著更高，可能是由于其寿命更长且产卵前期更短。这些结果可用于改进保护策略，增加普通草蛉数量及其捕食活动。
