Table 3.

The effectiveness of permethrin plus-C (Masterline®) and carbaryl (Sevin SL®) for protecting Pinus edulis from Ips confusus attack for two field seasons after treatment, Coconino County, Arizona (35.23°N, 111.51°W), 2004 to 2005.

Treatmentz2004y mortality/n2005x mortality/nCumulative mortality/n
Masterline1/241/232/24
Sevin SL0/23w0/230/23
Untreated control5/241/196/24

  • ↵z Applied 13 to 15 April 2004.

  • ↵y Assessed April 2005. Trees actively baited with racemic ipsenol (0.1–0.3 mg/24 h), racemic ipsdienol (0.1–0.3 mg/24 h), and 83%-(−)-cis-verbenol (1–2 mg/24 h) for 168 d.

  • ↵x Assessed October 2005. Trees actively baited for 168 d.

  • ↵w One tree lost to wood cutting.