Trapping Brown Marmorated Stink Bugs: “The Nazgȗl” Lure and Kill Nets

Abstract

Improvements to current brown marmorated stink bug (BMSB), Halyomorpha halys, surveillance and killing systems are needed to improve detection sensitivity and to reduce pesticide use. Detection of BMSB in New Zealand with traps is reliant on sticky panels with aggregation pheromone, which are low cost but inefficient compared with beating foliage. Trapping for BMSB adults and nymphs was conducted daily with lethal traps consisting of an aggregation pheromone-baited-coat hanger covered with dark-colored long-lasting insecticide-treated mesh, we termed “The Nazgȗl”, based on its sinister appearance. A deep tray lined with white plastic was attached centrally at the base for collecting the dead BMSB. The lethal traps killed and caught up to 3.5-fold more nymphs and adult BMSB than identically-baited sticky panels in the 3 weeks of deployment, and provided a snapshot of phenology by instar. We expect that lure-and-kill stations could contribute to the suppression of a delimited population and could be included as part of a semiochemical-based eradication program. Attracting and killing females and nymphs, thus removing future offspring, could contribute to population suppression during an eradication.

Grower assessment of profitability impact from Brown Marmorated Stink Bug, Halyomorpha halys (Stål), the value of management information sources, and use of potential management practices

“…Further, the repeated use of insecticides can lead to the development of insecticide resistance in BMSB populations, reducing the long‐term effectiveness of these control measures (Leskey et al., 2012). Besides insecticides, several other management strategies for the BMSB have been explored, including improved monitoring (Acebes‐Doria et al., 2018, 2019; Krawczyk et al., 2017), attract and kill (Morrison et al., 2019; Suckling et al., 2019), trap crops (Mathews et al., 2017; Nielsen et al., 2016; Stahl et al., 2021), repellents (Zhang et al., 2013), netting/barriers (Dobson et al., 2016; Kuhar et al., 2017), border sprays (Blaauw et al., 2014) and biocontrol tactics that conserve and promote natural enemies (Abram et al., 2017, 2020; Conti et al., 2021; Ogburn et al., 2021). Each of these strategies has its own advantages and disadvantages.…”