Eickhoff Thomas E, Baxendale Frederick P, Heng-Moss Tiffany M
Department of Entomology, University of Nebraska, Lincoln, NE 68583, USA.
J Insect Sci. 2006;6:1-6. doi: 10.1673/1536-2442(2006)6[1:HPOTCB]2.0.CO;2.
The chinch bug, Blissus occiduus Barber (Hemiptera: Blissidae), is an important pest of buffalograss, Buchloë dactyloides (Nutall) Engelmann and potentially other turfgrass, crop, and non-crop hosts. Choice studies documented the number of B. occiduus present on selected turfgrasses, crops and weeds, and provided important insights into the host preferences of this chinch bug. Grasses with the most chinch bugs present included the warm-season turfgrasses B. dactyloides , zoysiagrass, Zoysia japonica Steudel, bermudagrass, Cynodon dactylon (L.) Pers., and St. Augustinegrass, Stenotaphrum secundatum (Walt.) Kuntze. The other grasses tested, green foxtail, Setaria viridis (L.) Beauv, Kentucky bluegrass, Poa pratensis L., perennial ryegrass, Lolium perenne L., rye, Secale cereale L., sorghum, Sorghum bicolor (L.) Moench, tall fescue, Festuca arundinacea Schreb. and wheat Tritium aestivum L. had significantly fewer chinch bugs. Buffalograss and zoysiagrass had the highest numbers of chinch bugs among the warm-season grasses and the buffalograss cultivars '86-120' and 'PX-3-5-1' had more chinch bugs than the zoysiagrass cultivars 'Meyers' and 'El Toro' after the two hour evaluation time.
棉褐蝽，Blissus occiduus Barber（半翅目：棉褐蝽科），是野牛草（Buchloë dactyloides (Nutall) Engelmann）的一种重要害虫，对其他草坪草、作物及非作物寄主也有潜在危害。选择性研究记录了棉褐蝽在选定草坪草、作物和杂草上的数量，并为这种棉褐蝽的寄主偏好提供了重要见解。棉褐蝽数量最多的草包括暖季型草坪草野牛草、结缕草（Zoysia japonica Steudel）、狗牙根（Cynodon dactylon (L.) Pers.）和钝叶草（Stenotaphrum secundatum (Walt.) Kuntze）。其他测试的草，如绿狗尾草（Setaria viridis (L.) Beauv）、草地早熟禾（Poa pratensis L.）、多年生黑麦草（Lolium perenne L.）、黑麦（Secale cereale L.）、高粱（Sorghum bicolor (L.) Moench）、高羊茅（Festuca arundinacea Schreb.）和小麦（Tritium aestivum L.）上的棉褐蝽数量明显较少。在暖季型草坪草中，野牛草和结缕草上的棉褐蝽数量最多，经过两小时的评估时间后，野牛草品种‘86 - 120’和‘PX - 3 - 5 - 1’上的棉褐蝽数量比结缕草品种‘迈耶斯’（‘Meyers’）和‘埃尔托罗’（‘El Toro’）上的更多。
