TY - JOUR
T1 - Parasitism of the invasive brown marmorated stink bug, halyomorpha halys (Hemiptera
T2 - Pentatomidae), by the native parasitoid, trichopoda pennipes (diptera: Tachinidae)
AU - Joshi, Neelendra K.
AU - Leslie, Timothy W.
AU - Biddinger, David J.
N1 - Funding Information:
Funding: This research was supported in part by the USDA NIFA SCRI 2011-01413-30937, the State Horticultural Association of Pennsylvania (SHAP), and the Pennsylvania State University Hatch Project No. Pen04619.
Publisher Copyright:
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2019/9
Y1 - 2019/9
N2 - The invasive brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae), has been an important agricultural pest in the Mid-Atlantic United States since its introduction in 1996. Biological control by native species may play an important role in suppressing H. halys populations and reduce reliance on chemical control. We collected H. halys adults in agricultural areas of five Pennsylvania counties over two years to examine the extent and characteristics of adult stink bug parasitism by Trichopoda pennipes (Diptera: Tachinidae), a native parasitoid of hemipterans. The overall parasitism rate (in terms of T. pennipes egg deposition) was 2.38 percent. Rates differed among counties and seasons, but not between years. Instances of supernumerary oviposition were evident, and eggs were more commonly found on the ventral side of the thorax, although no differences in egg deposition were found between males and female hosts. T. pennipes has begun to target H. halys adults in Pennsylvania and has the potential to play a role in regulating this pest. Adult parasitism of H. halys by T. pennipes should continue to be monitored, and landscape management and ecological pest management practices that conserve T. pennipes populations should be supported in agricultural areas where H. halys is found.
AB - The invasive brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae), has been an important agricultural pest in the Mid-Atlantic United States since its introduction in 1996. Biological control by native species may play an important role in suppressing H. halys populations and reduce reliance on chemical control. We collected H. halys adults in agricultural areas of five Pennsylvania counties over two years to examine the extent and characteristics of adult stink bug parasitism by Trichopoda pennipes (Diptera: Tachinidae), a native parasitoid of hemipterans. The overall parasitism rate (in terms of T. pennipes egg deposition) was 2.38 percent. Rates differed among counties and seasons, but not between years. Instances of supernumerary oviposition were evident, and eggs were more commonly found on the ventral side of the thorax, although no differences in egg deposition were found between males and female hosts. T. pennipes has begun to target H. halys adults in Pennsylvania and has the potential to play a role in regulating this pest. Adult parasitism of H. halys by T. pennipes should continue to be monitored, and landscape management and ecological pest management practices that conserve T. pennipes populations should be supported in agricultural areas where H. halys is found.
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U2 - 10.3390/BIOLOGY8030066
DO - 10.3390/BIOLOGY8030066
M3 - Article
AN - SCOPUS:85116010729
VL - 8
JO - Biology
JF - Biology
SN - 2079-7737
IS - 3
M1 - 66
ER -