scholarly journals Testing local isolates of entomopathogenic microorganisms against Brown Marmorated Stink Bug Halyomorpha halys in Georgia

2020 ◽  
Vol 18 ◽  
pp. 00006 ◽  
Author(s):  
Medea Burjanadze ◽  
Natalia Kharabadze ◽  
Nona Сhkhidze
Keyword(s):  
Beauveria Bassiana ◽  
Black Sea ◽  
Entomopathogenic Fungus ◽  
Local Strain ◽  
High Mountain ◽  
Halyomorpha Halys ◽  
Brown Marmorated Stink Bug ◽  
Stink Bug ◽  
Disease Symptoms ◽  
Exotic Invasive

The brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae) (BMSB) is an exotic invasive insect which has spread extensively and established in new area of Black sea regions of Georgia. During 2017-2019, infected adults with fungal disease symptoms were found in population of H. halys from different regions of Western Georgia. Three isolates of entomopathogenic fungus Beauveria bassiana sensu lato and one of Isaria cf fumosorosea were recovered. Mycoinsecticide Bover-Ge, based on a local strain of B. bassiana-024 (isolated from soil high mountain of Caucasus Range, provide molecular identification in CABI-UK, gave a unique cultural number - IMI # 501797 and keep in CABI Genetic Recourse Collection) two concentrations (1×107 and 1×108 conidia/ml) was tested on the adults of H. halys in laboratory and its efficiency reached 72.0-90.5%. Under laboratory conditions, local isolates of nematodes Heterorhabditis bacteriophora and Steinernema borjomiensis were tested on H. halys adults. At three increasing concentrations (200, 500 and 1000 IJs/mL), H. bacteriophora caused bug mortality at the rates of 33-47%. As for Steinernema borjomiensis, the respective values were 13-33%.

scholarly journals Trophic connections of the brown marmorated stink bug Halyomorpha halys Stål in the conditions of the invasive area on the Black Sea coast of the Caucasus

2020 ◽  
Vol 21 ◽  
pp. 00007
Author(s):  
Vilena Zakharchenko ◽  
Natalia Karpun ◽  
Boris Borisov
Keyword(s):  
Black Sea ◽  
The Black Sea ◽  
Halyomorpha Halys ◽  
Brown Marmorated Stink Bug ◽  
Stink Bug ◽  
The Caucasus ◽  
Fodder Plants ◽  
Black Sea Coast ◽  
Trophic Connections ◽  
Sea Coast

Brown marmorated stink bug Halyomorpha halys (Stål, 1855) is a highly aggressive crop pest that has appeared in Russia since 2014. Under the conditions of a new invasive species area, it is important to study the characteristics of the pest biology, including the study of the range of trophic plants. The studies were carried out in the zone of humid subtropics of the Black Sea coast of the Caucasus in 2014-2019. The study of trophic connections was carried out in the course of regular surveys of the region’s phytocenoses, including agrocenoses, landscape gardening and forest stands. During the observation period, the number of fodder plants of the brown marmorated stink bug was 107 species from 48 botanical families. The most diverse fodder plants of the Fabaceae, Rosaceae, Rutaceae, Sapindaceae and Solanaceae families. Among the food plants of H. halys, conifers are noted. It was Metasequoia glyptostroboides Hu & W.C. Cheng and Taxodium mucronatum Ten. Migration ways of brown marmorated stink bug from forest plantations to agrocenoses, gardens and city parks have been established. Such movements allows the pest to eat variably and to wait for adverse conditions.

scholarly journals Biological control of sentinel egg masses of the exotic invasive stink bug Halyomorpha halys (Stål) in Mid-Atlantic USA ornamental landscapes

2016 ◽  
Vol 103 ◽  
pp. 11-20 ◽  
Author(s):  
Mary L. Cornelius ◽  
Christine Dieckhoff ◽  
Kim A. Hoelmer ◽  
Richard T. Olsen ◽  
Donald C. Weber ◽  
...  
Keyword(s):  
Biological Control ◽  
Halyomorpha Halys ◽  
Stink Bug ◽  
Egg Masses ◽  
Exotic Invasive

scholarly journals Relationship Between Invasive Brown Marmorated Stink Bug (Halyomorpha halys) and Fumonisin Contamination of Field Corn in the Mid-Atlantic U.S.

Plant Disease ◽  
2019 ◽  
Vol 103 (6) ◽  
pp. 1189-1195 ◽  
Author(s):  
Joseph Opoku ◽  
Nathan M. Kleczewski ◽  
Kelly A. Hamby ◽  
D. Ames Herbert ◽  
Sean Malone ◽  
...  
Keyword(s):  
Field Experiments ◽  
Block Design ◽  
Fusarium Verticillioides ◽  
Management Strategies ◽  
Halyomorpha Halys ◽  
Brown Marmorated Stink Bug ◽  
Stink Bug ◽  
Feeding Damage ◽  
Fusarium Infection ◽  
Field Corn

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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