Attraction of Tomicus yunnanensis (Coleoptera: Scolytidae) to Yunnan Pine Logs with and without Periderm or Phloem: An Effective Monitoring Bait
Figure 1
(a) Trap log bundles with periderm peeled off. (b) Trap log bundles with periderm and phloem peeled off. (c) Intact (not peeled) trap log bundles. (d) Standing Yunnan pine tree with periderm peeled off and every other 15 cm section covered with sticky adhesive (Qujing, Yunnan, China).
