scholarly journals Potentials of some entomopathogens against the brown marmorated stink bug, Halyomorpha halys (Stål, 1855) (Hemiptera: Pentatomidae)

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Elif Tozlu ◽  
Islam Saruhan ◽  
Göksel Tozlu ◽  
Recep Kotan ◽  
Fatih Dadaşoğlu ◽  
...  
Keyword(s):  
Biological Control ◽  
Chemical Control ◽  
Mortality Rates ◽  
Fungal Isolate ◽  
Economic Losses ◽  
Halyomorpha Halys ◽  
Pest Species ◽  
Brown Marmorated Stink Bug ◽  
Stink Bug ◽  
Bacterial Isolates

AbstractThe brown marmorated stink bug, Halyomorpha halys (Stål, 1855) (Hemiptera: Pentatomidae), is an invasive harmful pest species due to its economic losses. Its wide host range and continuous movement make its control difficult with insecticides. Biological control has recently gained importance due to the negative aspects of chemical control. The study evaluated the biological control tools by testing the entomopathogens against the pest by 11 bacteria strains and 1 fungal isolate. Brevibacillus, Bacillus, Pantoea, Vibrio, Pseudomonas, and Beauveria were tested against the nymphs of H. halys under controlled conditions. All applied entomopathogens had potentials for controlling H. halys. Mortality rates of 75 and 100% were obtained by the bacteria strains and 76.19% by the fungus, B. bassiana. Successfully reaching a 100% control rate, the bacterial isolates of the Bacillus cereus GC subgroup B and Pantoea agglomerans GC subgroup were recorded to have a greater potential than the others.

scholarly journals Assemblage of the Egg Parasitoids of the Invasive Stink Bug Halyomorpha halys: Insights on Plant Host Associations

Insects ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 588
Author(s):  
Livia Zapponi ◽  
Marie Claude Bon ◽  
Jalal Melhem Fouani ◽  
Gianfranco Anfora ◽  
Silvia Schmidt ◽  
...  
Keyword(s):  
Biological Control ◽  
Mitochondrial Gene ◽  
Strong Support ◽  
Egg Parasitoids ◽  
Economic Losses ◽  
Halyomorpha Halys ◽  
Stink Bug ◽  
Plant Host ◽  
Egg Masses ◽  
Host Associations

Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) is an invasive alien species and a key agricultural pest. Its native parasitoids (Trissolcus japonicus Ashmead and Tr. mitsukurii Ashmead) have been registered in several countries where H. halys brought dramatic economic losses and where biological control is considered to be the most effective long-term solution. By searching for stink bug egg masses and exposing sentinel egg masses, we monitored the distribution of native and exotic egg parasitoids in Trentino-Alto Adige (Italy), an area where both the host and parasitoids are in expansion. We recorded ten pentatomids, seven parasitoid species, with the first report of Tr. japonicus in this area and a hyperparasitoid. In the assemblage, Anastatus bifasciatus (Geoffroy) and Tr. mitsukurii were the dominant parasitoids, with a different distribution in terms of context and host plants. Sycamore was the host plant where the highest number of naturally laid parasitized egg masses (26%) were recorded. Trissolcus mitsukurii showed the highest parasitism rate, and was often found in apple orchards. The emergence of exotic parasitoids showed a temporal delay compared to native ones. Sequence analysis of 823 bp of the CO1 mitochondrial gene revealed that the recovered Tr. japonicus and Tr. mitsukurii harbored one single haplotype each. These haplotypes were previously found in 2018 in Northern Italy. While sentinel egg masses proved to be very effective in tracking the arrival of exotic Trissolcus species, the collection of stink bug egg masses provided fundamental data on the plant host species. The results lend strong support to the adaptation of exotic Trissolcus species to the environmental conditions of the range of introduction, providing new information on plant host-associations, fundamental for the development of biological control programs.

Chemical composition of Satureja spicigera essential oil and its insecticidal effectiveness on Halyomorpha halys nymphs and adults

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Temel Gokturk
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Insect Pest ◽  
Mortality Rates ◽  
Positive Control ◽  
Halyomorpha Halys ◽  
Brown Marmorated Stink Bug ◽  
Stink Bug ◽  
Chemical Contamination ◽  
Increased Risk

Abstract The brown marmorated stink bug, Halyomorpha halys (Stål 1855) (Hemiptera: Pentatomidae) is an invasive and economically important agricultural and ornamental insect pest nowadays established in many countries. There are numerous methods used for its control. Due to the increased risk of chemical contamination upon the application of synthetic insecticides to control harmful insects, essential oils are gaining increasing attention. In this research, the insecticidal effectiveness of Satureja spicigera (C. Koch) Boiss (Laminaceae) essential oil at 10, 15 and 20 μL/mL doses, and 24, 48, 72 and 96 h against five nymph instars and adults of H. halys was investigated. In addition, the chemical analysis of S. spicigera essential oil was done by GC-MS. The major components of the S. spicigera oil were carvacrol (32.14%), thymol (20.01%), ɣ-terpinene (17.05%), p-cymene (9.08%) and carvacrol methyl ether (5.70%). At the 96th h of the study, the essential oil caused a mortality rate of between 20.1 and 87.5%. The positive control (Nimbecidine®) had the highest mortality rates for nymphs (100%) and adults (90.3%). According to the LD50 and LD90 values, while the most toxic LD50 values were recorded as 0.63 and 4.66 μL/mL for the N1 instar and adults, the lowest LD90 values were 19.12 and 26.32 μL/mL for the N5 instar and adults, respectively. In conclusion, results showed that S. spicigera oil had a highly toxic effect against five nymph instars and adults of H. halys.

Sensitivity of the Egg Parasitoid Trissolcus japonicus (Hymenoptera: Scelionidae) to Field and Laboratory-Applied Insecticide Residue

2019 ◽  
Vol 112 (5) ◽  
pp. 2077-2084 ◽  
Author(s):  
David M Lowenstein ◽  
Heather Andrews ◽  
Anthony Mugica ◽  
Nik G Wiman
Keyword(s):  
Biological Control ◽  
Untreated Control ◽  
Egg Parasitoid ◽  
Halyomorpha Halys ◽  
Brown Marmorated Stink Bug ◽  
Stink Bug ◽  
Anthranilic Diamide ◽  
Trissolcus Japonicus ◽  
Organic Insecticides ◽  
Urban Sites

Abstract The spread of adventive Trissolcus japonicus (Ashmead, 1904) populations in North America is anticipated to increase biological control of Halyomorpha halys (Stål; Hemiptera: Pentatomidae), the brown marmorated stink bug. In an agricultural context, biological control will succeed if it can be integrated in an environment with insecticide applications. We investigated T. japonicus compatibility with nine conventional and organic insecticides commonly used in integrated pest management in perennial crops. Through evaluating mortality and longevity in field and laboratory trials, we determined that T. japonicus fares poorly when exposed to residues of neonicotinoids and pyrethroids. Spinosad resulted in the highest percentage of T. japonicus mortality, 100% in the laboratory and 97% in a field trial. The anthranilic diamide, chlorantraniliprole, had the lowest lethality, with no differences compared to an untreated control. Trissolcus japonicus survived insecticide applications in hazelnut orchards, and over 50% of wasps remained alive after contact with the anthranilic diamides, chlorantraniliprole and cyantraniliprole, the biopesticide Chromobacterium, and an untreated control. Our results indicate that T. japonicus is unlikely to survive and parasitize H. halys in settings that coincide with broad-spectrum insecticide application. Future T. japonicus redistributions could continue in orchards treated with anthranilic diamides and Chromobacterium. As H. halys is a landscape-level pest, orchards may also benefit from biological control if T. japonicus are released in unsprayed areas adjacent to agriculture and in urban sites.

scholarly journals ddRAD sequencing: an emerging technology added to the biosecurity toolbox for tracing the origin of brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae)

BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Juncong Yan ◽  
Gábor Vétek ◽  
Chandan Pal ◽  
Jinping Zhang ◽  
Rania Gmati ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Structure ◽  
Structure Analysis ◽  
Dna Sequences ◽  
Economic Losses ◽  
Halyomorpha Halys ◽  
Invasion History ◽  
Brown Marmorated Stink Bug ◽  
Stink Bug ◽  
Genetic Clusters

Abstract Background Brown marmorated stink bug (BMSB), Halyomorpha halys (Hemiptera: Pentatomidae) is native to East Asia but has invaded many countries in the world. BMSB is a polyphagous insect pest and causes significant economic losses to agriculture worldwide. Knowledge on the genetic diversity among BMSB populations is scarce but is essential to understand the patterns of colonization and invasion history of local populations. Efforts have been made to assess the genetic diversity of BMSB using partial mitochondrial DNA sequences but genetic divergence on mitochondria is not high enough to precisely accurately identify and distinguish various BMSB populations. Therefore, in this study, we applied a ddRAD (double digest restriction-site associated DNA) sequencing approach to ascertain the genetic diversity of BMSB populations collected from 12 countries (2 native and 10 invaded) across four continents with the ultimate aim to trace the origin of BMSBs intercepted during border inspections and post-border surveillance. Result A total of 1775 high confidence single nucleotide polymorphisms (SNPs) were identified from ddRAD sequencing data collected from 389 adult BMSB individuals. Principal component analysis (PCA) of the identified SNPs indicated the existence of two main distinct genetic clusters representing individuals sampled from regions where BMSB is native to, China and Japan, respectively, and one broad cluster comprised individuals sampled from countries which have been invaded by BMSB. The population genetic structure analysis further discriminated the genetic diversity among the BMSB populations at a higher resolution and distinguished them into five potential genetic clusters. Conclusion The study revealed hidden genetic diversity among the studied BMSB populations across the continents. The BMSB populations from Japan were genetically distant from the other studied populations. Similarly, the BMSB populations from China were also genetically differentiated from the Japanese and other populations. Further genetic structure analysis revealed the presence of at least three genetic clusters of BMSB in the invaded countries, possibly originating via multiple invasions. Furthermore, this study has produced novel set of SNP markers to enhance the knowledge of genetic diversity among BMSB populations and demonstrates the potential to trace the origin of BMSB individuals for future invasion events.

scholarly journals Preempting the Arrival of the Brown Marmorated Stink Bug, Halyomorpha halys: Biological Control Options for Australia

Insects ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 581
Author(s):  
Valerie Caron ◽  
Tania Yonow ◽  
Cate Paull ◽  
Elijah J. Talamas ◽  
Gonzalo A. Avila ◽  
...  
Keyword(s):  
Biological Control ◽  
Northeast Asia ◽  
Egg Parasitoid ◽  
Halyomorpha Halys ◽  
Brown Marmorated Stink Bug ◽  
Stink Bug ◽  
Biological Control Agents ◽  
Parasitoid Species ◽  
Potential Effectiveness ◽  
Control Options

The brown marmorated stink bug Halyomorphahalys (Stål) (Hemiptera: Pentatomidae) is native to Northeast Asia, but has become a serious invasive species in North America and Europe, causing major damage to crops. While it has not established itself in Australia, it has been intercepted at the border several times, indicating that future incursions and establishment are a case of when, not if. Biological control is one of the few control options for this species and will be important for managing H.halys should it become established in Australia. Prioritizing species that could be used as biological control agents would ensure Australia is prepared. This study summarizes the literature on natural enemies of H. halys in its native and invaded ranges and prioritizes potential biological control agents of H.halys that could be used in Australia. Two egg parasitoid species were identified: Trissolcusjaponicus (Ashmead) and Trissolcusmitsukurii (Ashmead) (Hymenoptera: Scelionidae). Future efforts to develop biological control should focus on T. mitsukurii, as it is already present in Australia. However, little is known about this species and further work is required to: (1) assess its potential effectiveness in parasitizing H. halys, (2) determine its current distribution and (3) host range in Australia.

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