scholarly journals Lethal and Sublethal Effects of Conventional and Organic Insecticides on the Parasitoid Trissolcus japonicus, a Biological Control Agent for Halyomorpha halys

2021 ◽  
Vol 1 ◽  
Author(s):  
Arthur V. Ribeiro ◽  
Sarah G. Holle ◽  
William D. Hutchison ◽  
Robert L. Koch
Keyword(s):  
Biological Control ◽  
Natural Enemy ◽  
Sublethal Effects ◽  
Biological Control Agent ◽  
Invasive Pest ◽  
Halyomorpha Halys ◽  
Unmated Female ◽  
Lethal Effects ◽  
Trissolcus Japonicus ◽  
Contact Exposure

The egg parasitoid Trissolcus japonicus is a natural enemy of Halyomorpha halys, a polyphagous invasive pest in Europe and North and South America. Integration of chemical and biological control tactics could facilitate effective and sustainable integrated pest management programs. This study was conducted to assess (i) the lethal effects of field rates, (ii) the sublethal effects of maximum and half field rates, and (iii) the lethal effects of different routes of exposure of three organic and two conventional insecticides against T. japonicus. Maximum field rates of spinosad and sulfoxaflor resulted in acute lethal toxicity to adult T. japonicus 1 week after residual contact exposure. Maximum and half field rates of pyrethrins, the mixture of azadirachtin and pyrethrins, and clothianidin caused sublethal effects to female wasps through residual contact exposure. Furthermore, all insecticides caused acute lethal effects 1 week after ingestion by unmated female wasps. Taken together, these results suggest that careful planning is necessary to ensure compatibility between biological and chemical control for H. halys. The insecticides evaluated in this study varied in toxicity to T. japonicus and should be used with caution to conserve this natural enemy for biological control of H. halys.

scholarly journals An Insight into the Role of Trissolcus mitsukurii as Biological Control Agent of Halyomorpha halys in Northeastern Italy

Insects ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 306 ◽  
Author(s):  
Davide Scaccini ◽  
Martina Falagiarda ◽  
Francesco Tortorici ◽  
Isabel Martinez-Sañudo ◽  
Paola Tirello ◽  
...  
Keyword(s):  
Biological Control ◽  
Biological Control Agent ◽  
Field Performance ◽  
Egg Parasitoid ◽  
Control Agent ◽  
The Other ◽  
Invasive Pest ◽  
Halyomorpha Halys ◽  
Wide Range ◽  
Northeastern Italy

Sustainable strategies such as classical or augmentative biological control are currently being evaluated for the long-term management of the alien invasive pest Halyomorpha halys (Stål) (Hemiptera: Pentatomidae). A three-year study carried out in northeastern Italy was performed to investigate the distribution and field performance of the H. halys egg parasitoid Trissolcus mitsukurii (Ashmead) (Hymenoptera: Scelionidae), in comparison with other parasitoid species. In the study area, adventive populations of T. mitsukurii were present since 2016, representing the earliest detection of this species in Europe. Trissolcus mitsukurii was the most abundant parasitoid and showed a higher “parasitoid impact” (i.e., number of parasitized eggs over the total number of field-collected eggs) compared to the other species, i.e., Anastatus bifasciatus (Geoffroy) (Hymenoptera: Eupelmidae), Trissolcus basalis (Wollaston) and Trissolcus kozlovi Rjachovskij (Hymenoptera: Scelionidae). The hyperparasitoid Acroclisoides sinicus (Huang and Liao) (Hymenoptera: Pteromalidae) was also recorded. Phylogenetic analysis of T. mitsukurii population distinguished two clades, one covering samples from Italy, Japan and China, the other from South Korea. The present study provides promising results for the biological control of a pest that is having a dramatic impact on a wide range of crops worldwide.

Physiological host range of Trissolcus mitsukurii, a candidate biological control agent of Halyomorpha halys in Europe

2021 ◽  
Author(s):  
Lucrezia Giovannini ◽  
Giuseppino Sabbatini-Peverieri ◽  
Leonardo Marianelli ◽  
Gabriele Rondoni ◽  
Eric Conti ◽  
...  
Keyword(s):  
Biological Control ◽  
Host Range ◽  
Biological Control Agent ◽  
Control Agent ◽  
Halyomorpha Halys

scholarly journals The complete mitochondrial genome of Trissolcus japonicus (Hymenoptera: Scelionidae), the candidate for the biological control of Halyomorpha halys (Hemiptera: Pentatomidae)

2021 ◽  
Vol 6 (8) ◽  
pp. 2307-2309
Author(s):  
Francesco Nardi ◽  
Claudio Cucini ◽  
Elena Cardaioli ◽  
Francesco Paoli ◽  
Giuseppino Sabbatini Peverieri ◽  
...  
Keyword(s):  
Biological Control ◽  
Mitochondrial Genome ◽  
Complete Mitochondrial Genome ◽  
Halyomorpha Halys ◽  
Trissolcus Japonicus

scholarly journals Rearing Trissolcus japonicus and Trissolcus mitsukurii for Biological Control of Halyomorpha halys

Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 787
Author(s):  
Giuseppino Sabbatini-Peverieri ◽  
Christine Dieckhoff ◽  
Lucrezia Giovannini ◽  
Leonardo Marianelli ◽  
Pio Federico Roversi ◽  
...  
Keyword(s):  
Biological Control ◽  
Control Method ◽  
Egg Parasitoids ◽  
Halyomorpha Halys ◽  
Progeny Production ◽  
Asian Origin ◽  
Frequent Use ◽  
Trissolcus Japonicus ◽  
Cumulative Curves

Halyomorpha halys is a severe agricultural pest of Asian origin that has invaded many countries throughout the world. Pesticides are currently the favored control methods, but as a consequence of their frequent use, often disrupt Integrated Pest Management. Biological control with egg parasitoids is seen as the most promising control method over the long-term. Knowledge of the reproductive biology under laboratory conditions of the most effective candidates (Trissolcus japonicus and Trissolcus mitsukurii) for optimizing production for field releases is strongly needed. Rearing of these egg parasitoids was tested by offering three different host supply regimes using new emerged females and aged, host-deprived females in different combinations. Results showed a mean progeny per female ranging from 80 to 85 specimens for T. japonicus and from 63 to 83 for T. mitsukurii. Sex ratios were strongly female biased in all combinations and emergence rates exceeded 94% overall. Cumulative curves showed that longer parasitization periods beyond 10–14 days (under the adopted rearing regimes) will not lead to a significantly increase in progeny production. However, ageing females accumulate eggs in their ovaries that can be quickly laid if a sufficient number of host eggs are supplied, thus optimizing host resources. Our data showed that offering H. halys egg masses to host-deprived female Trissolcus once a week for three weeks allowed its eggs to accumulate in the ovary, providing the greatest number of offspring within a three week span.

Direct and residual contact toxicity of insecticides toHalyomorpha halys(Hemiptera: Pentatomidae)

2019 ◽  
Vol 151 (2) ◽  
pp. 209-218 ◽  
Author(s):  
A.E. Gradish ◽  
H. Fraser ◽  
C.D. Scott-Dupree
Keyword(s):  
United States Of America ◽  
Economic Loss ◽  
The United States ◽  
Invasive Pest ◽  
Contact Toxicity ◽  
Halyomorpha Halys ◽  
Effective Management ◽  
Management Options ◽  
Horticultural Crops ◽  
Contact Exposure

AbstractHalyomorpha halys(Stål) (Hemiptera: Pentatomidae) is a serious invasive pest of many agricultural and horticultural crops in Canada and the United States of America. To mitigate economic loss for growers, effective management options forH. halysare needed. We evaluated the efficacy of 12 insecticides (Beauveria bassiana(Balsamo-Crivelli) Vuillemin (Cordycipitaceae), boric acid, chlorpyrifos, clothianidin, flupryadifurone, λ-cyhalothrin, malathion, novaluron, sulfoxaflor, thiamethoxam, thiamethoxam + λ-cyhalothrin, and thiamethoxam + novaluron) currently used or with potential forH. halysmanagement by determining their direct and residual contact toxicity toH. halysnymphs. Each insecticide was tested at its Canadian label rate and half and twice that rate. With the exception of chlorpyrifos, nymph mortality was low (< 40%) following direct or residual contact exposure to all insecticides and rates. All surviving nymphs were severely affected (i.e., knocked down) by direct and residual contact exposure to neonicotinoids, while approximately 66% of nymphs were severely affected following exposure to sulfloxaflor residues at label and twice label rate. However, few nymphs were severely affected by all other insecticides and rates. Overall, our results suggest thatH. halysis not susceptible to many insecticides at current label rates for Canada. More research is needed to identify efficacious insecticides forH. halys.

Physiological Host Range of Trissolcus Mitsukurii, A Candidate Biological Control Agent of Halyomorpha Halys

2021 ◽  
Author(s):  
Lucrezia Giovannini ◽  
Giuseppino Sabbatini-Peverieri ◽  
Leonardo Marianelli ◽  
Gabriele Rondoni ◽  
Eric Conti ◽  
...  
Keyword(s):  
Biological Control ◽  
Host Range ◽  
Biocontrol Agent ◽  
Biological Control Agent ◽  
Classical Biological Control ◽  
Egg Parasitoid ◽  
Control Agent ◽  
Egg Load ◽  
Halyomorpha Halys ◽  
Stink Bug

Abstract The invasive stink bug Halyomorpha halys is a severe agricultural pest of worldwide importance, and chemical insecticides are largely sprayed for the control of its populations. Negative impacts and several failures in chemical pest management led to consider classical biological control as one of the most promising methods in a long-term perspective. The Asian egg parasitoid Trissolcus japonicus is the main candidate biocontrol agent of H. halys, but more recently a second Asian egg parasitoid, Trissolcus mitsukurii, is getting attention after adventive populations were found on H. halys egg masses in Europe. Before recommending the use of T. mitsukurii for biological control of H. halys, a risk analysis is necessary and therefore here we present the first study on the fundamental physiological host range of this parasitoid in Europe. Tests conducted with T. mitsukurii on different hemipterans, using three different experimental designs, revealed a broad physiological host range, comparable with the host range displayed by T. japonicus under similar laboratory conditions. Specifically, in addition to its coevolved host H. halys, T. mitsukurii successfully parasitized the majority of tested pentatomid species and one scutellerid, although with highly variable emergence rates. Host egg sizes positively affected parasitoid size and female egg load. Further studies, testing more complex systems that involve olfactory cues from host and host plants, will simulate different aspects of the parasitoid host location behavior under field conditions, allowing in-depth evaluation of the possible risks associated with the use of T. mitsukurii as a biocontrol agent of H. halys.

scholarly journals Influence of Holding Conditions and Storage Duration of Halyomorpha halys (Hemiptera: Pentatomidae) Eggs on Adventive and Quarantine Populations of Trissolcus japonicus (Hymenoptera: Scelionidae) Behavior and Parasitism Success

2021 ◽  
Author(s):  
Dalton C Ludwick ◽  
Layne B Leake ◽  
William R Morrison ◽  
Jesús R Lara ◽  
Mark S Hoddle ◽  
...  
Keyword(s):  
United States ◽  
Classical Biological Control ◽  
The United States ◽  
Invasive Pest ◽  
Egg Mass ◽  
Halyomorpha Halys ◽  
Storage Duration ◽  
Egg Masses ◽  
Trissolcus Japonicus ◽  
And Storage

Abstract Halyomorpha halys (Stål) is an invasive pest in the United States and other countries. In its native range, H. halys eggs are parasitized by a co-evolved parasitoid, Trissolcus japonicus (Ashmead). In the United States, T. japonicus, a classical biological control candidate, is being redistributed in many states where adventive populations exist. To establish if H. halys egg holding conditions affect T. japonicus foraging behavior or successful parasitism, naïve, female parasitoids from an adventive population were allowed to forage in laboratory bioassay arenas with either fresh or frozen (−20 or −80°C) egg masses, the latter held for five durations ranging from 1 h to 112 d. Parasitoid movements were recorded for 1 h. Thereafter, parasitoids were transferred with the same egg mass for 23 h. Additionally, female parasitoids from a quarantine colony were exposed to: 1) pairs of fresh egg masses and egg masses frozen at −40°C (&gt;24 h) or 2) a single fresh egg mass or egg mass frozen at −40°C (&lt;1 h). All exposed egg masses were held to assess progeny emergence. In the foraging bioassay, holding temperature and storage duration appeared to influence host-finding and host quality. Egg masses held at −80°C and fresh egg masses resulted in significantly greater levels of parasitism and progeny emergence compared with eggs held at −20°C. No differences were recorded between egg masses held at −40°C for ≤1 h and fresh egg masses. These results will help refine methods for preparation of egg masses for sentinel monitoring and parasitoid mass rearing protocols.

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