Efficacy of Insecticides Against Acrosternum hilare and Euschistus servus (Hemiptera: Pentatomidae) in Virginia and North Carolina

Abstract

Laboratory bioassays and field trials were conducted to evaluate the efficacy of selected organophosphate, pyrethroid, and neonicotinoid insecticides, as well as a chitin inhibitor, novaluron, against 2 common stink bug pests in Virginia, the green stink bug, Acrosternum hilare (Say), and the brown stink bug, Euschistus servus (Say). Green bean dip bioassays revealed differences in insecticide susceptibility between the 2 species. Acrosternum hilare adults were highly susceptible to all pyrethroids tested, the organophosphates except acephate, and the neonicotinoids except acetamiprid. Acrosternum hilare nymphs were also susceptible to all pyrethroids tested. In general, the neonicotinoids, dinotefuran and clothianidin, were toxic to A. hilare, whereas thiamethoxam and acetamiprid were toxic to E. servus. In field trials in soybean, the neonicotinoids, dinotefuran, imidacloprid, and thiamethoxam were efficacious at controlling stink bugs and, in general, performed comparably to the organophosphates and pyrethroids. These results indicate that neonicotinoid insecticides offer an alternative to growers for managing stink bugs that may fit with integrated pest management programs where conservation of natural enemies is a consideration.

Reduction of Soybean Yield Components by <I>Megacopta cribraria</I> (Hemiptera: Plataspidae)

“…A complex of stink bug (Hemiptera: Pentatomidae) species, most notably Nezara viridula (L.), Euschistus servus (Say), and Chinavia hilaris (Say), feed on soybean pods and seeds, reducing seed yield and quality (Gore et al 2006. Stink bugs are commonly managed with pyrethroid insecticides (Kamminga et al 2009), which have shown high efÞcacy against M. cribraria in Þeld trials (unpublished data). The velvetbean caterpillar Anticarsia gemmatalis Hubner, soybean looper Pseudoplusia includens (Walker) (Lepidoptera: Noctuidae), and other foliar feeding lepidopterans can severely defoliate soybeans at high densities (Rowan et al 1991).…”

Stimulatory and Suppressive Effects of Novaluron on the Colorado Potato Beetle Reproduction

“…Novaluron is a relatively new chitin synthesis inhibitor that is under development for agricultural and fruit pest species in the USA (Hoffman et al 2009;Kamminga et al 2009;Beauzulin et al 2010;Wise et al 2010). The only published studies in which novaluron was evaluated against stored product insects are by Kostyukovsky andTrostanetsky (2006, 2008), who reported suppressed development of T. castaneum when exposed on flour treated with novaluron.…”

Residual Activity of Methoprene and Novaluron as Surface Treatments to Manage the Flour Beetles,Tribolium castaneumandTribolium confusum

“…Novaluron is a relatively new chitin synthesis inhibitor that is under development for agricultural and fruit pest species in the USA (Hoffman et al 2009; Kamminga et al 2009; Beauzulin et al 2010; Wise et al 2010). The only published studies in which novaluron was evaluated against stored product insects are by Kostyukovsky and Trostanetsky (2006, 2008), who reported suppressed development of T. castaneum when exposed on flour treated with novaluron.…”