Comparative efficacy of three techniques for monitoring the establishment and spread of larval parasitoids recently introduced for biological control of emerald ash borer, Agrilus planipennis (Coleoptera: Buprestidae)

2021 ◽  
pp. 104704
Author(s):  
Claire E. Rutledge ◽  
Roy G. Van Driesche ◽  
Jian J. Duan
Keyword(s):  
Biological Control ◽  
Emerald Ash Borer ◽  
Agrilus Planipennis ◽  
Comparative Efficacy ◽  
Larval Parasitoids

Phenology of Emerald Ash Borer (Coleoptera: Buprestidae) and Its Introduced Larval Parasitoids in the Northeastern United States

2019 ◽  
Vol 113 (2) ◽  
pp. 622-632 ◽  
Author(s):  
Michael I Jones ◽  
Juli R Gould ◽  
Hope J Mahon ◽  
Melissa K Fierke
Keyword(s):  
United States ◽  
New York ◽  
Biological Control ◽  
North America ◽  
Russian Far East ◽  
Far East ◽  
Emerald Ash Borer ◽  
Life Cycles ◽  
Agrilus Planipennis ◽  
Larval Parasitoids

Abstract Biological control offers a long-term and sustainable option for controlling the destructive forest pest emerald ash borer (EAB), Agrilus planipennis Fairmaire, in North America. Three larval parasitoids, Spathius agrili Yang (Hymenoptera: Braconidae), Tetrastichus planipennisi Yang (Eulophidae), and Spathius galinae Belokobylskij & Strazanac, have been introduced to North America from the native range of EAB (northeastern Asia). While T. planipennisi appears to be persisting where it has been introduced in northern United States, S. agrili failed to establish in northeastern states. The more recently identified parasitoid S. galinae was recovered from the Russian Far East and climate matching suggests it should be suited for release in colder climates. We collected data on the phenology of EAB and its introduced larval parasitoids from colonies established in an insectary, growth chambers, and field-caged trees in Syracuse, New York to determine whether asynchrony between parasitoids and EAB or climate could impact establishment and persistence. Phenological data indicated EAB has one and 2-yr life cycles in New York, with parasitoid-susceptible EAB larvae available spring to fall for parasitism. Insectary and growth chamber studies indicated S. galinae and T. planipennisi were synchronous with EAB phenology, and field studies suggested both species could overwinter in northeastern climates. Spathius agrili was asynchronous with EAB phenology and climate, emerging when fewer parasitoid-susceptible EAB larvae were available and temperatures were not optimal for survival. Our results suggest S. galinae and T. planipennisi are suited for biological control of EAB at the northern limits of its range in North America.

Progress in the classical biological control of Agrilus planipennis Fairmaire (Coleoptera: Buprestidae) in North America

2015 ◽  
Vol 147 (3) ◽  
pp. 300-317 ◽  
Author(s):  
Leah S. Bauer ◽  
Jian J. Duan ◽  
Juli R. Gould ◽  
Roy Van Driesche
Keyword(s):  
United States ◽  
Biological Control ◽  
North America ◽  
United States Of America ◽  
Russian Far East ◽  
Far East ◽  
Classical Biological Control ◽  
The United States ◽  
Agrilus Planipennis ◽  
Larval Parasitoids

AbstractFirst detected in North America in 2002, the emerald ash borer (EAB) (Agrilus planipennis Fairmaire; Coleoptera: Buprestidae), an invasive phloem-feeding beetle from Asia, has killed tens of millions of ash (Fraxinus Linnaeus; Oleaceae) trees. Although few parasitoids attack EAB in North America, three parasitoid species were found attacking EAB in China: the egg parasitoid Oobius agrili Zhang and Huang (Hymenoptera: Encyrtidae) and two larval parasitoids Tetrastichus planipennisi Yang (Hymenoptera: Eulophidae) and Spathius agrili Yang (Hymenoptera: Braconidae). In 2007, classical biological control of EAB began in the United States of America after release of these three species was approved. In 2013, release of the larval parasitoids was approved in Canada. Research continues at study sites in Michigan, United States of America where the establishment, prevalence, and spread of O. agrili and T. planipennisi have been monitored since 2008. However, establishment of S. agrili remains unconfirmed in northern areas, and its release is now restricted to regions below the 40th parallel. In 2015, approval for release of Spathius galinae Belokobylskij (Hymenoptera: Braconidae), an EAB larval parasitoid from the Russian Far East, may be granted in the United States of America. Researchers are guardedly optimistic that a complex of introduced and native natural enemies will regulate EAB densities below a tolerance threshold for survival of ash species or genotypes in forested ecosystems.

scholarly journals Parasitoid Guilds ofAgrilusWoodborers (Coleoptera: Buprestidae): Their Diversity and Potential for Use in Biological Control

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Philip B. Taylor ◽  
Jian J. Duan ◽  
Roger W. Fuester ◽  
Mark Hoddle ◽  
Roy Van Driesche
Keyword(s):  
Biological Control ◽  
North America ◽  
Host Plants ◽  
Emerald Ash Borer ◽  
Agrilus Planipennis ◽  
Native Parasitoids ◽  
The Family ◽  
The Usa ◽  
Egg Parasitism ◽  
Hymenopteran Parasitoids

Literature studies in North America (US and Canada), Europe, and Asia (particularly Russia, China, Japan, and the Korean peninsula) were reviewed to identify parasitoid guilds associated withAgriluswoodborers. There are at least 12 species of hymenopteran parasitoids attacking eggs ofAgrilusbeetles and 56 species (36 genera), attackingAgriluslarvae infesting various host plants in North America, Asia, and Europe. While most of the egg parasitoids (9 species) belong to the family Encyrtidae, a majority of the larval parasitoids are members of five families: Braconidae (24 species/11 genera), Eulophidae (8 species/4 genera), Ichneumonidae (10 species/9 genera), and Eupelmidae (6 species/5 genera). The highest rate ofAgrilusegg parasitism (>50%) was exerted by encyrtid wasps (4 species) in North America, Asia, and Europe. In contrast, the highest rate ofAgriluslarval parasitism (>50%) was caused by species in two genera of braconids:Atanycolus(North America) andSpathius(Asia), and one eulophid genus,Tetrastichus(Asia and Europe). Reported rate ofAgriluslarval parasitism ichneumonids was frequent in North America, but generally low (<1%). Potential for success in biological control of emerald ash borer (Agrilus planipennisFairmaire) in the USA with North American native parasitoids and old-association Asian parasitoids is discussed.

scholarly journals Host Overwintering Phenology and Climate Change Influence the Establishment of Tetrastichus planipennisi Yang (Hymenoptera: Eulophidae), a Larval Parasitoid Introduced for Biocontrol of the Emerald Ash Borer

2020 ◽  
Vol 113 (6) ◽  
pp. 2641-2649
Author(s):  
Juli R Gould ◽  
Melissa L Warden ◽  
Benjamin H Slager ◽  
Theresa C Murphy
Keyword(s):  
Climate Change ◽  
United States ◽  
Biological Control ◽  
Emerald Ash Borer ◽  
Control Program ◽  
The United States ◽  
Agrilus Planipennis ◽  
Climate Change Scenarios ◽  
Ongoing Research ◽  
Tetrastichus Planipennisi

Abstract Emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), is one of the most serious forest pests in the United States. Ongoing research indicates that establishment of larval parasitoids depends upon the season-long availability of host stages susceptible to parasitism. We monitored emerald ash borer overwintering stages at 90 sites across 22 states to: 1) produce a model of the percentage of emerald ash borer overwintering as non-J larvae; 2) link that model to establishment of Tetrastichus planipennisi; and 3) explore changes to our model under climate change scenarios. Accumulated growing degree days (GDD) is an important predictor of the proportion of emerald ash borer overwintering as non-J larvae (1–4 instar larvae under the bark; available to parasitoids emerging in spring) versus J-larvae (fourth-instar larvae in pupal chambers in the outer wood; unavailable to parasitoids). From north to south, the availability of non-J emerald ash borer larvae in the spring decreases as accumulated GDD increases. In areas where the model predicted &gt;46–75%, &gt;30–46%, &gt;13–30%, or ≤13% of emerald ash borer overwintering as non-J larvae, the probability of establishment of T. planipennisi was 92%, 67%, 57%, and 21%, respectively. We determined that 13% of emerald ash borer overwintering as non-J larvae was the lowest threshold for expected T. planipennisi establishment. Additional modeling predicts that under climate change, establishment of T. planipennisi will be most affected in the Central United States, with areas that are currently suitable becoming unsuitable. Our results provide a useful tool for the emerald ash borer biological control program on how to economically and successfully deploy emerald ash borer biological control agents.

Female-Produced Sex Pheromone of Tetrastichus planipennisi, a Parasitoid Introduced for Biological Control of the Invasive Emerald Ash Borer, Agrilus planipennis

2020 ◽  
Vol 46 (5-6) ◽  
pp. 508-519
Author(s):  
Allard A. Cossé ◽  
Bruce W. Zilkowski ◽  
Yunfan Zou ◽  
Jocelyn G. Millar ◽  
Leah Bauer ◽  
...  
Keyword(s):  
Biological Control ◽  
Sex Pheromone ◽  
Emerald Ash Borer ◽  
Agrilus Planipennis ◽  
Tetrastichus Planipennisi

scholarly journals Horizontal transmission of the entomopathogenic fungal isolate INRS-242 of Beauveria bassiana in emerald ash borer, Agrilus planipennis Fairmaire

2019 ◽  
Author(s):  
Narin Srei ◽  
Robert Lavallée ◽  
Claude Guertin
Keyword(s):  
Biological Control ◽  
North America ◽  
Beauveria Bassiana ◽  
Biological Control Agent ◽  
Horizontal Transmission ◽  
Emerald Ash Borer ◽  
Control Agent ◽  
Agrilus Planipennis ◽  
Fungal Isolate ◽  
Ash Trees

AbstractEmerald ash borer (EAB), Agrilus planipennis Fairmaire, is an invasive and destructive beetle that causes extensive damages to ash trees in North America. The entomopathogenic fungus Beauveria bassiana is considered as an effective biological control agent for EAB adult populations. Using an assisted autodissemination with the fungal isolate INRS-242 of B. bassiana, our research aims to investigate the possibility of horizontal transmission of the fungal disease from infected to uninfected EAB adults during mating. Results show that the efficiency of fungal transmission is significantly related to the sex of EAB carrying the pathogen. EAB males are the promising vector to transmit INRS-242 isolate of B. bassiana to their partners during mating. Results strengthen the potential of the fungal autodissemination device as a powerful biological strategy to control EAB populations.

Evaluating methods to detect and monitor North American larval parasitoids of the emerald ash borer (Coleoptera: Buprestidae)

2020 ◽  
Vol 152 (3) ◽  
pp. 389-398
Author(s):  
Justin M. Gaudon ◽  
D. Barry Lyons ◽  
Gene C. Jones ◽  
Jeremy D. Allison ◽  
Sandy M. Smith
Keyword(s):  
North American ◽  
Emerald Ash Borer ◽  
Control Programme ◽  
Agrilus Planipennis ◽  
Larval Parasitoids ◽  
Native North American ◽  
Introduced Range ◽  
Trapping Methods ◽  
Evaluating Methods

AbstractPopulations of native North American parasitoids attacking Agrilus Curtis (Coleoptera: Buprestidae) species have recently been considered as part of an augmentative biological control programme in an attempt to manage emerald ash borer, Agrilus planipennis Fairmaire, a destructive wood-boring beetle discovered in North America in 2002. We evaluate trapping methods to detect and monitor populations of two important native larval parasitoids, Phasgonophora sulcata Westwood (Hymenoptera: Chalcididae) and Atanycolus Förster (Hymenoptera: Braconidae) species, attacking emerald ash borer in its introduced range. We found that purple prism traps captured more P. sulcata than green prism traps, yellow pan traps, and log samples and thus were considered better for detecting and monitoring P. sulcata populations. Trap type did not affect the number of captures of Atanycolus species. Surprisingly, baiting prism traps with a green leaf volatile or manuka oil did not significantly increase captures of P. sulcata or Atanycolus species. Based on these results, unbaited purple prism traps would be optimal for sampling these native emerald ash borer parasitoids in long-term management programmes.

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