Abstract
Stink bugs (Hemiptera: Pentatomidae) are economic pests in fruit, vegetable, grain, and row crops worldwide. Pyramid traps baited with lures of stink bug aggregation pheromones capture these pests in the field, but stink bugs can congregate on plants near traps. Our specific objective was to examine the area of arrestment of stink bugs based on their density on cotton at different distances from pheromone-baited traps. We used lures of the aggregation pheromone of Euschistus spp., methyl (2E,4Z)-2,4-decadienoate (MDD), and Plautia stali Scott, methyl [2E,4E,6Z]-2,4,6-decatrienoate (MDT). Overall, Euschistus servus (Say), Euschistus tristigmus (Say), Chinavia hilaris (Say), and Nezara viridula (L.) were the main stink bug species on cotton. Over the 3-yr study, adult stink bug density was significantly higher on the row of cotton immediately adjacent to a pheromone-baited trap than on the second and third row from the trap. Stink bug density was significantly lower on the seventh cotton row beyond the trap in 2015, on the fourth, eighth, and 16th rows in 2017, and on the fourth and eighth rows in 2018 compared to the two or three rows nearest the trap. These results indicate that adult stink bugs congregated mainly on the three cotton rows (2.73 m in width) nearest a trap. Management strategies utilizing pheromone-baited traps for stink bug control, such as trap cropping in combination with traps, should take into consideration this area of arrestment.
Highlights
Stink bugs (Hemiptera: Pentatomidae) are economic pests in fruit, vegetable, grain, and row crops worldwide
An earlier study was conducted to examine the attractiveness of the pheromone of E. servus, N. viridula, and C. hilaris to each stink bug species in field plots in Georgia (Tillman et al 2010)
It was not surprising that E. servus and E. tristigmus were highly attracted to traps baited with MDD in the current study
Summary
Stink bugs (Hemiptera: Pentatomidae) are economic pests in fruit, vegetable, grain, and row crops worldwide. Several studies have shown that pyramid traps baited with commercially available MDD lures effectively capture adults of Euschistus spp., including E. servus, E. tristigmus, E. ictericus, E. quadrator, E. politus Uhler, and E. conspersus (Uhler), in the field (Mizell and Tedders 1995, Cottrell et al 2000, Johnson et al 2002, Leskey and Hogmire 2005, Tillman and Cottrell 2016a). Pyramid traps baited with MDD capture C. hilaris and N. viridula in peanut and cotton field edges (Tillman and Cottrell 2016a).
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