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Lin HY, Wang JJ, Mao XJ, Liao SK, Chen H. Eriogynapyretorum (Lepidoptera, Saturniidae) parasitoid species investigated in Fujian, China. Biodivers Data J 2023; 11:e108794. [PMID: 37693695 PMCID: PMC10483278 DOI: 10.3897/bdj.11.e108794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 08/22/2023] [Indexed: 09/12/2023] Open
Abstract
Eriogynapyretorum Westwood is a notorious defoliator of Camphoraofficinarum Nees that causes large economic and ecological losses in planted forests. To understand the importance of suppressing the population of E.pyretorum on natural parasitoids, a four-years investigation was conducted in the field. Four egg parasitoid species Ooencyrtuskuvanae Howard, Trichogrammachionis Ishii, Telenomus sp. and Anastatusdexingensis Sheng & Wang were captured in the wild. One of these is the dominant endoparasitoid species T.chionis, which has a quicker developmental time (8.33 d), more offspring (8.39/egg) and a greater parasitism rate (89.54%). With different elevation distributions, the parasitism rates for Kriechbaumerellalongiscutellaris Qian & He, Gregopimplahimalayensis (Cameron), Theroniadepressa (Gupta) and Xanthopimplakonowi (Krieger) were 17.29%, 2.10%, 4.23% and 0.83%, respectively. Female longevity (47.75 d), offspring (13.36/pupa) and sex ratio (1.16:1) were compared in four pupal parasitoids and K.longiscutellaris was the most abundant species of E.pyretorum in Fujian Province.
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Affiliation(s)
- Hao Yu Lin
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, ChinaCollege of Forestry and Landscape Architecture, South China Agricultural UniversityGuangzhouChina
| | - Jia Jin Wang
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, ChinaCollege of Forestry and Landscape Architecture, South China Agricultural UniversityGuangzhouChina
| | - Xin Jie Mao
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, ChinaCollege of Forestry and Landscape Architecture, South China Agricultural UniversityGuangzhouChina
| | - Song Kai Liao
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, ChinaCollege of Forestry and Landscape Architecture, South China Agricultural UniversityGuangzhouChina
| | - Hui Chen
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, ChinaCollege of Forestry and Landscape Architecture, South China Agricultural UniversityGuangzhouChina
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Yan Z, Yue JJ, Zhang YY. Biotic and abiotic factors that affect parasitism in Trichogramma pintoi (Hymenoptera: Trichogrammatidae) as a biocontrol agent against Heortia vitessoides (Lepidoptera: Pyralidae). ENVIRONMENTAL ENTOMOLOGY 2023:7136674. [PMID: 37086481 DOI: 10.1093/ee/nvad040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 03/22/2023] [Accepted: 04/06/2023] [Indexed: 05/03/2023]
Abstract
The parasitoid wasp, Trichogramma pintoi, is a promising candidate for inundative release against Heortia vitessoides. Parasitoid females can regulate the sex of their offspring in response to environmental and biological factors. In pest control programs utilizing these parasitoids, male overproduction is not conducive to success. To optimize the production of T. pintoi as an egg parasitoid of H. vitessoides, factors affecting the rates of parasitism and eclosion and the percentage of females among T. pintoi offspring, such as temperature, photoperiod, host age, host density, maternal age, maternal density, and food, were investigated. The proportion of T. pintoi female offspring was significantly affected by temperature, photoperiod, host density, maternal age, and maternal density. The female offspring percentage decreased in response to host density (160 eggs), maternal age (≥ 4 days old), maternal density (≥ 4 females), photoperiods (24:0 and 18:6 L:D), and extremely low temperature (15 °C). However, host age and female diet did not affect the proportion of female offspring. According to the present work, female parasitoid production can be maximized under laboratory conditions of 25 °C, 75% relative humidity, and a photoperiod of 0:24 h (L:D) via exposure of forty 1-day-old H. vitessoides eggs for 24 h or eighty 1-day-old H. vitessoides eggs to a newly emerged, mated female fed a 10% sucrose solution until the female dies. These findings will guide mass production efforts for this parasitoid.
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Affiliation(s)
- Zhen Yan
- Yunnan Key Laboratory of Southern Medicine Utilization, Institute of Medicinal Plant Development Yunnan Branch, Chinese Academy of Medical Sciences and Peking Union Medical College, Jinghong 666100, China
| | - Jian-Jun Yue
- School of Traditional Dai-Thai Medicine, West Yunnan University of Applied Sciences, Jinghong 666100, China
- School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou 510006, China
| | - Yong-Yu Zhang
- School of Traditional Dai-Thai Medicine, West Yunnan University of Applied Sciences, Jinghong 666100, China
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Villalba GA, Scheunemann T, Krüger AP, Silva Corrêa LM, Bernardi D, Nava DE. Selection of Strains of Trichogramma foersteri and Trichogramma pretiosum (Hymenoptera: Trichogrammatidae) for the Control of Palpita forficifera (Lepidoptera: Crambidae). NEOTROPICAL ENTOMOLOGY 2023; 52:197-203. [PMID: 36447116 DOI: 10.1007/s13744-022-01009-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 11/16/2022] [Indexed: 06/16/2023]
Abstract
Palpita forficifera Munroe 1959 is a lepidopteran pest native to the Neotropical region and has been causing damage to olive tree crops in Brazil and Uruguay. The use of egg parasitoids of the genus Trichogramma may be a viable and sustainable alternative to pest management. The objective of the present work was to select species and/or strains of Trichogramma as possible agents of control for P. forficifera. Selections were made from five strains of Trichogramma foersteri Takahashi (R1, R2, R3, R4, and R5) collected in olive orchards of southern Brazil and four strains of Trichogramma pretiosum Riley (AC, PR, MJU, and RVI) from laboratory rearings. The strains of T. foersteri presented the longest periods from egg to adult (≈ 11.5 days) when compared to T. pretiosum (≈ 9.5 days). However, T. foersteri provided, in general, the highest daily percentage of parasitized P. forficifera eggs and, consequently, a higher rate of parasitism (between 50 and 69%) in relation to those of T. pretiosum (variation from 7 to 20%). In addition, T. foersteri provided a higher emergence rate (above 90%), with a sex ratio close to 1.0. However, all strains of T. pretiosum were longer-lived compared to adults of T. foersteri. From the biological parameters evaluated, two distinct groups were formed between T. foersteri and T. pretiosum. In general, T. foersteri has better potential for controlling P. forficifera, demonstrating its potential for use in field multiplication and release programs for the management of the olive larvae.
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Affiliation(s)
- Guido Aguilera Villalba
- Faculdade de Agronomia Eliseu Maciel, Programa de Pós-Graduação Em Fitossanidade, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil
| | - Tiago Scheunemann
- Faculdade de Agronomia Eliseu Maciel, Programa de Pós-Graduação Em Fitossanidade, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil
| | - Alexandra Peter Krüger
- Faculdade de Agronomia Eliseu Maciel, Programa de Pós-Graduação Em Fitossanidade, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil
| | - Luis Miguel Silva Corrêa
- Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil
| | - Daniel Bernardi
- Faculdade de Agronomia Eliseu Maciel, Programa de Pós-Graduação Em Fitossanidade, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil
| | - Dori Edson Nava
- Faculdade de Agronomia Eliseu Maciel, Programa de Pós-Graduação Em Fitossanidade, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil.
- Embrapa Clima Temperado, Pelotas, Rio Grande Do Sul, Brazil.
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Krüger AP, Scheunemann T, Vieira JGA, Morais MC, Bernardi D, Nava DE, Garcia FRM. Effects of Extrinsic, Intraspecific Competition and Host Deprivation on the Biology of Trichopria anastrephae (Hymenoptera: Diapriidae) Reared on Drosophila suzukii (Diptera: Drosophilidae). NEOTROPICAL ENTOMOLOGY 2019; 48:957-965. [PMID: 31364009 DOI: 10.1007/s13744-019-00705-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/05/2019] [Indexed: 06/10/2023]
Abstract
The pupal parasitoid Trichopria anastrephae Lima (Hymenoptera: Diapriidae) shows potential to control Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), and understanding the behavior of this parasitoid in challenging environments is important to obtain a higher efficiency in mass rearing and in biological control programs. This study aimed to verify the effects of extrinsic intraspecific competition and the absence of host on the parasitism of T. anastrephae in D. suzukii pupae. Therefore, to evaluate the parasitism of T. anastrephae under intraspecific competition, groups of 20 pupae (24 h old) of D. suzukii were offered for different densities of parasitoids (1, 3, 5, or 10 couples) during a 7-day period. Whereas to evaluate the effects of host deprivation on parasitism of T. anastrephae, we tested different treatments: T1-no deprivation, T2-complete deprivation, T3-deprivation every other day, T4-deprivation for 3 days, and T5-deprivation for 7 days. The increase of density of parasitoids resulted in an increase of oviposition scars on pupae and a longer biological cycle, suggesting the occurrence of superparasitism. Increased density also resulted in a higher percentage of attacked pupae, but did not affect parasitoids emergence nor sex ratio. Host deprivation affected number of parasitized pupae, number and sex ratio of offspring, and the longevity of females. Based on our findings, competition among females do not impair offspring viability, and host deprivation for a period up to 7 days do not influence parasitism capacity, indicating that it can be used as a pre-release strategy.
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Affiliation(s)
- A P Krüger
- Programa de pós-graduação em Fitossanidade, Univ Federal de Pelotas, Pelotas, RS, 96010900, Brasil.
| | - T Scheunemann
- Programa de pós-graduação em Fitossanidade, Univ Federal de Pelotas, Pelotas, RS, 96010900, Brasil
| | - J G A Vieira
- Programa de pós-graduação em Fitossanidade, Univ Federal de Pelotas, Pelotas, RS, 96010900, Brasil
| | - M C Morais
- Faculdade de Agronomia Eliseu Maciel, Univ Federal de Pelotas, Pelotas, RS, 96010900, Brasil
| | - D Bernardi
- Programa de pós-graduação em Fitossanidade, Univ Federal de Pelotas, Pelotas, RS, 96010900, Brasil
| | - D E Nava
- Programa de pós-graduação em Fitossanidade, Univ Federal de Pelotas, Pelotas, RS, 96010900, Brasil
- EMBRAPA Clima Temperado, Pelotas, RS, 96010-971, Brasil
| | - F R M Garcia
- Programa de pós-graduação em Fitossanidade, Univ Federal de Pelotas, Pelotas, RS, 96010900, Brasil
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Huang J, Hua HQ, Wang LY, Zhang F, Li YX. Number of attacks by Trichogramma dendrolimi (Hymenoptera: Trichogrammatidae) affects the successful parasitism of Ostrinia furnacalis (Lepidoptera: Crambidae) eggs. BULLETIN OF ENTOMOLOGICAL RESEARCH 2017; 107:812-819. [PMID: 28397638 DOI: 10.1017/s0007485317000335] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In laboratories, the parasitism rate of Ostrinia furnacalis (Güenée) (Lepidoptera: Crambidae) eggs by Trichogramma dendrolimi Matsumura (Hymenoptera: Trichogrammatidae) is low; however, efforts to control O. furnacalis with T. dendrolimi in the field have been successful. In this study, the effects of the number of attacks by T. dendrolimi against O. furnacalis eggs and diet of O. furnacalis larva on wasp development were investigated. The results indicated that more attacks increased significantly not only the successful parasitism rate of O. furnacalis eggs by T. dendrolimi, but also the percentage of host eggs that failed to develop into either O. furnacalis larvae or T. dendrolimi. Both the size and female proportion of T. dendrolimi offspring decreased as the number of attacks increased. The number of T. dendrolimi eggs laid in per host egg increased significantly as the ratio of wasps to host eggs increased from 1:5 to 3:5. Host diet also significantly affected the developmental time of immaturity and the emergence rate of adults of T. dendrolimi. These results illustrate how inundative releases of T. dendrolimi can successfully control O. furnacalis despite the fact that pest parasitism by the subsequent wasp generation decreases sharply in the field. The suitability of O. furnacalis eggs to T. dendrolimi and the superparasitism effects on offspring of T. dendrolimi are discussed.
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Affiliation(s)
- J Huang
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - H-Q Hua
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - L-Y Wang
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - F Zhang
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Y-X Li
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
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