Sarzynski Erin M, Liburd Oscar E
Department of Entomology and Nematology, Building 970, Natural Area Drive. P.O. Box 110620, University of Florida, Gainesville, FL 32611, USA.
J Econ Entomol. 2003 Dec;96(6):1821-7. doi: 10.1093/jee/96.6.1821.
Several monitoring techniques were evaluated for their effectiveness, based on the highest mean captures of cranberry tipworm, Dasineura oxycoccana (Johnson), in detecting D. oxycoccana in rabbiteye, Vaccinium ashei Reade, and southern highbush, V. corymbosum L. x V. darrowi Camp, blueberry plantings. There were no significant differences in captures of D. oxycoccana adults on unbaited sticky board traps, regardless of color (yellow, white, green, or blue). In a separate experiment, three monitoring techniques, yellow unbaited sticky boards, larval/adult emergence from infested buds, and bud dissection, were evaluated for detecting D. oxycoccana, eggs, larvae, and adults. In total, four bud types were examined, including rabbiteye floral, rabbiteye leaf, southern highbush floral, and southern highbush leaf. The emergence monitoring technique detected significantly more D. oxycoccana adults than the other techniques evaluated. Emergence and dissection techniques performed equally well for detecting D. oxycoccana larvae. Dissection was the only technique capable of detecting D. oxycoccana eggs. Overall, the highest numbers of D. oxycoccana eggs were detected in southern highbush leaf buds. However, larval infestation was lower for southern highbush leaf buds compared with other bud types sampled. Hypotheses to explain this phenomenon are discussed. The fewest number of eggs was recorded for southern highbush flower buds, potentially because these buds develop before peak emergence of D. oxycoccana. Managing D. oxycoccana in infested plantings can be improved by incorporating monitoring techniques, specifically bud dissection to search for eggs, that will aid growers in making timely insecticide applications.
基于蔓越橘梢小卷蛾（Dasineura oxycoccana (Johnson)）的最高平均捕获量，对几种监测技术在检测兔眼蓝莓（Vaccinium ashei Reade）和南高丛蓝莓（V. corymbosum L. x V. darrowi Camp）种植园中该害虫的有效性进行了评估。在未加诱饵的粘板诱捕器上，无论颜色（黄色、白色、绿色或蓝色）如何，捕获的蔓越橘梢小卷蛾成虫数量均无显著差异。在另一项实验中，评估了三种监测技术，即黄色未加诱饵的粘板、从受侵染芽中羽化出幼虫/成虫以及芽解剖，用于检测蔓越橘梢小卷蛾的卵、幼虫和成虫。总共检查了四种芽类型，包括兔眼花芽、兔眼叶芽、南高丛花芽和南高丛叶芽。羽化监测技术检测到的蔓越橘梢小卷蛾成虫比其他评估技术显著更多。羽化和解剖技术在检测蔓越橘梢小卷蛾幼虫方面表现相当。解剖是唯一能够检测到蔓越橘梢小卷蛾卵的技术。总体而言，在南高丛叶芽中检测到的蔓越橘梢小卷蛾卵数量最多。然而，与其他采样的芽类型相比，南高丛叶芽的幼虫侵染率较低。文中讨论了解释这一现象的假设。南高丛花芽记录到的卵数量最少，可能是因为这些芽在蔓越橘梢小卷蛾羽化高峰期之前发育。通过采用监测技术，特别是芽解剖来寻找卵，可以改进对受侵染种植园中蔓越橘梢小卷蛾的管理，这将有助于种植者及时施用杀虫剂。
