Survey of the reproductive development of field-caught Halyomorpha halys (Hemiptera: Pentatomidae) in the Niagara Region of Ontario, Canada

2019 ◽  
Vol 151 (3) ◽  
pp. 406-409
Author(s):  
Andrew J. Frewin ◽  
Kevin Scaife ◽  
Hannah Fraser ◽  
Cynthia D. Scott-Dupree

AbstractHalyomorpha halys (Stål) (Hemiptera: Pentatomidae), also known as the brown marmorated stink bug, is an invasive agricultural and nuisance pest. Knowledge of the life history of insect pests is important for informing pest management activities. Some North American populations of H. halys have two generations per year, and it is suspected that H. halys may have a partial second generation in the Niagara Region of Ontario, Canada. We determined the number of H. halys generations in Ontario by examining the reproductive development of field-caught adult females. The pattern of reproductive development we observed supports the conclusion that H. halys complete one generation per year in the Niagara Region of Ontario. Reproductively active H. halys were captured as early as May and continued until early September, and the peak of reproductively active individuals occurred between 250 and 550 degree days calculated with a sine-wave function and a lower threshold set to 14.17 °C.

2019 ◽  
Vol 72 ◽  
pp. 36-43 ◽  
Author(s):  
Timothy F. Vandervoet ◽  
David E. Bellamy ◽  
Diane Anderson ◽  
Rory MacLellan

The brown marmorated stink bug (BMSB) would have wide-ranging and likely devastating effects on New Zealand’s horticultural industries if it were to establish here. This insect has spread rapidly around the world, becoming pestiferous only a few years after detection; therefore, there will be limited time to develop management strategies to prevent damage if viable BMSB populations were to establish in New Zealand. Lures containing BMSB pheromone paired with 92 sticky panels were deployed near transitional facilities and other potentially high-risk entry points in the Auckland, Hawke’s Bay and Nelson regions. Traps were monitored fortnightly from November 2018 to April 2019 and all pentatomid species identified and enumerated. No BMSB were captured, but seven other pentatomid species were caught. Numbers and species varied among site, region and date. The phenology of the pentatomids captured supports reports of one to two generations occurring in pipfruitproduction regions depending on growing-degree days. The phenologies of the pentatomid species caught suggest that any control measures for prevention of fruit damage by BMSB would be limited to late summer. A number of recommendations for a BMSB monitoring programme are provided.


Plant Disease ◽  
2019 ◽  
Vol 103 (6) ◽  
pp. 1189-1195 ◽  
Author(s):  
Joseph Opoku ◽  
Nathan M. Kleczewski ◽  
Kelly A. Hamby ◽  
D. Ames Herbert ◽  
Sean Malone ◽  
...  

Brown marmorated stink bug (Halyomorpha halys Stål) is an invasive agricultural pest that causes severe damage to many crops. To determine potential associations between H. halys feeding damage, Fusarium infection, and mycotoxin contamination in field corn, a field survey was conducted in eight counties in Virginia. Results indicated an association between H. halys feeding damage and fumonisin contamination. Subsequent field experiments in Delaware, Maryland, and Virginia examined the ability of H. halys to increase Fusarium verticillioides (Sacc.) Nirenberg infection and fumonisin concentrations in corn. At the milk stage, H. halys (0 or 4 adults) and Fusarium (with or without F. verticillioides inoculum) treatments were applied to bagged ears in a two by two factorial randomized complete block design with 12 replicates. H. halys treatments increased levels of feeding damage (P < 0.0001) and Fusarium infection (P = 0.0380). Interaction between H. halys and Fusarium treatments influenced severity of infection (P = 0.0018) and fumonisin concentrations (P = 0.0360). Results suggest H. halys has the ability to increase both Fusarium infection and fumonisin concentrations in field corn. Further studies are needed to understand mechanisms by which H. halys increases fumonisin and to develop management strategies to mitigate impacts of H. halys on field corn in the region.


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