Department of Entomology and Nematology, University of Florida, Gainesville, FL 32611, USA.
J Econ Entomol. 2010 Aug;103(4):1258-67. doi: 10.1603/ec09317.
The blueberry gall midge, Dasineura oxycoccana (Johnson) (Diptera: Cecidomyiidae), is a key pest of rabbiteye blueberry, Vaccinium virgatum Aiton, in the southeastern United States, but it has not been studied extensively and little is known about its ecology and management. Studies were conducted to develop an improved method for monitoring D. oxycoccana adults and to determine the within-field distribution of infestation. Four emergence traps were evaluated in an organic rabbiteye blueberry planting for their effectiveness in capturing D. oxycoccana adults early in the season. These traps included a jar trap, wheat blossom midge trap, petri dish trap, and bucket trap. The petri dish and bucket traps captured the highest numbers of adults in 2007 and 2008, respectively. Both traps had a clear plastic panel coated with adhesive. Adult midges emerging from the soil beneath the traps were caught in the adhesive as they flew up toward the light. Emergence traps are useful for detecting the presence of adults early in the season before larval infestation is apparent in the flower buds. To determine the pattern of midge infestation, flower buds were collected weekly from January to March in 2006 from rabbiteye blueberry plants located in a plot at the southwest border of an existing blueberry planting. There were no differences found in the number of larvae collected from various distances within blueberry rows. However, when flower buds were collected from an isolated rabbiteye plot in 2007 and 2008, D. oxycoccana infestation was not uniform. In both years, the southern border row had a significantly higher number of midge larvae per bud compared with the other rows.
蓝莓瘿蚊，Dasineura oxycoccana (Johnson)（双翅目：瘿蚊科），是美国东南部兔眼蓝莓 Vaccinium virgatum Aiton 的一种关键害虫，但对其生态学和管理知之甚少。本研究旨在开发一种监测蓝莓瘿蚊成虫的改进方法，并确定其田间的侵染分布。在一个有机兔眼蓝莓种植园中评估了四种诱捕器，以评估其在早期捕获蓝莓瘿蚊成虫的效果。这些诱捕器包括广口瓶诱捕器、麦花瘿蚊诱捕器、培养皿诱捕器和桶状诱捕器。2007 年和 2008 年，培养皿和桶状诱捕器分别捕获了最多数量的成虫。这两种诱捕器都有一个涂有粘性物的透明塑料面板。从诱捕器下方土壤中飞出的成虫在飞向光源的过程中被粘性物粘住。诱捕器可用于在幼虫侵染在花蕾中还不明显时，在季节早期检测成虫的存在。为了确定瘿蚊侵染的模式，于 2006 年 1 月至 3 月，每周从位于现有蓝莓种植西南边界的蓝莓植株上采集花蕾。在蓝莓行内的不同距离处收集的幼虫数量没有差异。然而，当在 2007 年和 2008 年从孤立的兔眼蓝莓种植区采集花蕾时，蓝莓瘿蚊的侵染并不均匀。在这两年中，与其他行相比，南边界行每花蕾的幼虫数量明显更高。
