Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou, Zhejiang 310029, China.
J Econ Entomol. 2011 Jun;104(3):862-7. doi: 10.1603/ec10216.
Odontotermes formosanus (Shiraki) (Isoptera: Termitidae) is one of the most destructive plant pests in China, which control relies mainly on baits strategies. Baits made from the wood of eight different tree species were used to study the feeding preference of this termite, and conversely wood protection strategies of the tree species. Three bait types were used to identify wood protection strategies: solid wood (physical and chemical protection), crude flour (chemical protection) made from ground wood, and extracted flour (no protection) made by extracting crude flour with ethanol and toluene. Feeding preference was influenced by wood species and bait type. For solid wood, Magnolia denudata Desr (75%) and Elaeocarpus glabripetalus Merr (41%) were most preferred; for crude flour, E. glabripetalus (97%) and Quercus variabilis Blume (92%) were most preferred; and for extracted flour, there were no significant differences between wood species, demonstrating the influence of chemical defense. The greatest contrast between bait types was for Platanus orientalis L, the least preferred as solid wood and crude flour, suggesting that chemical defense compounds are particularly important in this species. Solid wood consumption was inversely correlated with wood density. Extracted flour consumption was positively correlated with glucose concentration. There was no direct effect of holocellulose and other components tested. O. formosanus preferred to fed on soft wood with low chemical protection (M. denudata); conversely trees protected their wood either physically [e.g., E. glabripetalus, Q. variabilis, Cinnamomum camphora (L.) Presl, and Ligustrum lucidum Aiton] or chemically (Populus bonati Levl) or a combination of both strategies (Liquidamba formosana Hance and P. orientalis).
台湾乳白蚁（Shiraki）（等翅目：白蚁科）是中国最具破坏性的植物害虫之一，其防治主要依赖于诱饵策略。使用来自八种不同树种的木材制作诱饵，以研究这种白蚁的取食偏好，并反过来研究树种的木材保护策略。使用三种诱饵类型来识别木材保护策略：实木（物理和化学保护）、从木材磨碎制成的粗粉（化学保护）以及用乙醇和甲苯提取粗粉制成的提取粉（无保护）。取食偏好受木材种类和诱饵类型的影响。对于实木，玉兰（75%）和海南蒲桃（41%）最受欢迎；对于粗粉，海南蒲桃（97%）和栓皮栎（92%）最受欢迎；对于提取粉，树种之间没有显著差异，表明存在化学防御。诱饵类型之间的最大差异是悬铃木，作为实木和粗粉的取食最少，表明化学防御化合物在该树种中尤为重要。实木消耗量与木材密度呈负相关。提取粉消耗量与葡萄糖浓度呈正相关。未测试到纤维素和其他成分的直接影响。台湾乳白蚁喜欢取食低化学保护的软木（玉兰）；相反，树木要么通过物理手段（如海南蒲桃、栓皮栎、樟和女贞），要么通过化学手段（麻柳叶），要么通过两者结合的策略（枫香和悬铃木）来保护木材。
