Industrial assays to evaluate the efficacy of vacuum pressure impregnation with commercial wood preservatives to eliminate the pinewood nematode, Bursaphelenchus xylophilus, and other nematodes from Pinus pinaster wood

Abstract To demonstrate the efficacy of vacuum pressure impregnation (VPI) with commercial wood preservative products to eliminate quarantine organism, pinewood nematode (PWN), Bursaphelenchus xylophilus , and other nematodes from maritime pine ( Pinus pinaster ) wood, in vitro assays industrial horizontal autoclave tanks were conducted. In nematicidal activity through direct exposure PWN 3rd-stage dispersal juveniles, resistance juvenile stage, extracted naturally infected P. revealed 100% mortality three preservatives. Nematode was also assessed VPI preservatives using experimental units, various diameters sizes. After treatment, ranged 99.9761 100%. incubation, total number increased and, all sections, higher than 99.9981% some it indicating that impregnated does not constitute an environment favorable reproduction development nematodes. Overall, our findings demonstrated efficiency process results joint action physical effect product. treatment can be considered a valuable approach avoiding subsequent application heat treatment.