Abstract
The brown marmorated stink bug, Halyomorpha halys (Stål) (BMSB) is an exotic invasive insect originating in East Asia, currently causing significant damage to fruits, vegetables and other crops throughout most of the Mid-Atlantic states of the U.S. It also is a nuisance pest, entering homes in the fall in search of suitable overwintering sites. Two formulations of BotaniGard® with a strain of Beauveria bassiana (GHA) as the active ingredient were tested against second instar BMSB. Both the wettable powder and the emulsifiable suspension formulations were efficacious at 1 × 107 conidia mL−1, causing 67%–80% mortality 9 days post treatment and 95%–100% after 12 days. The wettable powder formulation was slightly more efficacious.
Highlights
The brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) (BMSB) is an exotic invasive insect in the U.S that has spread extensively from Pennsylvania, its first site of an accidental infestation [1]
The potential of entomopathogenic fungi against adult BMSB was evaluated in laboratory trials, and isolates of Beauveria bassiana and Metarhizium anisopliae caused significant mortality to the adults [10]
These bioassay results confirm that significant mortality of BMSB nymphs can occur following a spray treatment of the GHA strain of B. bassiana found in the commercial fungal-based product
Summary
The brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) (BMSB) is an exotic invasive insect in the U.S that has spread extensively from Pennsylvania, its first site of an accidental infestation [1]. It has been reported in 42 states in the U.S, including all those east of the Mississippi River and all those along the Pacific Coast [2,3]. The potential of entomopathogenic fungi against adult BMSB was evaluated in laboratory trials, and isolates of Beauveria bassiana and Metarhizium anisopliae caused significant mortality to the adults [10]. The purpose of the research reported was to determine the efficacy of two formulations of BotaniGard® against second instar BMSB
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