Value‐adding in biosecurity surveillance and monitoring: Testing colour and non‐target semiochemical lures on Psylloidea and Pentatomoidea

Abstract

Cost efficiency in biosecurity surveillance is vital, and the ability to survey multiple pest species using just one trap is, therefore, highly appealing. The Psylloidea, or plantlice, contain significant horticultural pest species that act as vectors for a number of deleterious plant bacteria. We examine the efficacy of using two different coloured sticky traps, and two semiochemical lures on the general Psylloidea and Pentatomoidea fauna, and a target extant pest psyllid; tomato potato psyllid (TPP) Bactericera cockerelli (Šulc) in Western Australia. Specifically, we test the effect of semiochemical lure (no lure, Asian citrus psyllid ACP lure, brown marmorated stink bug BMSB lure, combined lures), sticky trap colour (yellow‐green vs yellow) and sentinel plant (tomato vs citrus) on psyllid and pentatomid species in 104 urban backyards across Perth, Australia. We found that tomato sentinel host plants and yellow‐green traps significantly increased the capture rate of TPP, but that lures decreased the capture of TPP constraining their use. Yellow‐green traps also increased the capture rate of all other Psylloidea. Although BMSB lures reduced TPP capture, these lures increased the abundances of other Psylloidea and the pest stinkbug Plautia affinis (Dallas) on traps. Thus, our experiment demonstrates that increased efficiencies can be gained with multi‐species traps and semiochemical lures for particular groups, provided that they have been tested on focal organisms in the first instance, as reactions to non‐target lures are unpredictable and species specific.

Optimal allocation of resources among general and species‐specific tools for plant pest biosecurity surveillance

“…For example, most North American Ips species are attracted to the blend of compounds used by the European spruce bark beetle, Ips typographus , for aggregation (Rabaglia et al, 2019). Also, in some cases, it is possible to utilize a single trap that is baited with multiple lures, each highly specific for multiple pests (Chase et al, 2018; Moir et al, 2022). This may represent a situation intermediate between the GT and ST methods considered here.…”

Field Evaluation of Attract-And-Kill Devices for Control of Asian Citrus Psyllid (Hemiptera: Liviidae) in Urban Landscapes

“…An advantage of AKDs is that, unlike sticky card traps, they remain clear of insect cadavers, leaf material, or other debris but still maintain an effective kill rate of the target species over several weeks in the field. Attract-andkill devices that were effective in field tests utilized multiple sensory cues known to affect psyllid host finding and foraging behaviors (Chow et al 2018(Chow et al , 2019Martini et al 2020;George et al 2020;Moir et al 2022). For example, D. citri is strongly attracted to color cues that resemble the young shoots of its host plants (Hall et al 2010;Patt et al 2011;Paris et al 2015;Allan et al 2020), its primary site for mating, oviposition, and development (Halbert & Manjunath 2004).…”

“…An advantage of AKDs is that, unlike sticky card traps, they remain clear of insect cadavers, leaf material, or other debris but still maintain an effective kill rate of the target species over several weeks in the field. Attract-and-kill devices that were effective in field tests utilized multiple sensory cues known to affect psyllid host finding and foraging behaviors (Chow et al 2018, 2019; Martini et al 2020; George et al 2020; Moir et al 2022). For example, D .…”