Braman S K, Raymer P L
Department of Entomology, University of Georgia, College of Agricultural and Environmental Sciences, 1109 Experiment Street, Griffin, GA 30223-1797, USA.
J Econ Entomol. 2006 Oct;99(5):1699-704. doi: 10.1603/0022-0493-99.5.1699.
Ten cultivars of seashore paspalum, Paspalum vaginatum Swartz, were compared for their response to Japanese beetle, Popillia japonica Newman, larval root feeding. Cultivars of Bermuda grass, Cynodon sp., and zoysiagrass, Zoysia sp., also were included for comparison. Turf grown in pots in the greenhouse was infested with second and third instars in this 2-yr study. Grub survival and weight gain, foliar growth, and root loss were compared among turfgrass species and cultivars. Few species-related differences were identified. Differences in grub tolerance were, however, observed to be a function of turfgrass cultivar. Some turf types demonstrating tolerance to grub feeding had rapid root growth and high root mass in control pots, but this was not consistent for all cultivars showing enhanced ability to maintain foliar growth despite grub feeding. The paspalum cultivars that seemed most tolerant of grub feeding were '561-79', 'Sea Isle 2000', 'Durban', 'HI-10', 'Kim-1', 'Sea Dwarf', and 'Sea Spray'.
对10个海滨雀稗品种（Paspalum vaginatum Swartz）进行了比较，以研究它们对日本丽金龟（Popillia japonica Newman）幼虫取食根部的反应。同时还纳入了狗牙根（Cynodon sp.）和结缕草（Zoysia sp.）的品种进行比较。在这项为期两年的研究中，温室盆栽草皮受到二龄和三龄幼虫的侵害。比较了草坪草种和品种之间蛴螬的存活率、体重增加、叶片生长和根系损失情况。几乎没有发现与物种相关的差异。然而，观察到对蛴螬耐受性的差异是草坪草品种的一个函数。一些对蛴螬取食表现出耐受性的草皮类型在对照盆中根系生长迅速且根量较大，但并非所有尽管受到蛴螬取食仍能保持叶片生长能力增强的品种都是如此。似乎最耐蛴螬取食的海滨雀稗品种是“561-79”、“海岛2000”、“德班”、“HI-10”、“Kim-1”、“海矮生”和“海喷雾”。
