Subsequent chemical and foraging ecology preferences of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae) reared on two alternate stored product host insects
Theocolax elegans (Hymenoptera: Pteromalidae) is a potential postharvest biocontrol agent whose host range includes Sitophilus oryzae (Coleoptera: Curculionidae) and Rhyzopertha dominica (Coleoptera: Bostrichidae). Both host species are cosmopolitan and destructive pests of bulk wheat. In addition,...
Saved in:
| Main Authors: | , , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
|
| Series: | Biological Control |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1049964424002305 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841553851043282944 |
|---|---|
| author | Jacqueline M. Maille Chloe E. Albin Rachel R. Harman Matthew C. Hetherington Sabita Ranabhat Jennifer Abshire Jaye Montgomery Ian M. Stoll Madison Lillich Samantha Gillette Daniel Brabec Kun Yan Zhu Erin D. Scully Alison R. Gerken William R. Morrison, III |
| author_facet | Jacqueline M. Maille Chloe E. Albin Rachel R. Harman Matthew C. Hetherington Sabita Ranabhat Jennifer Abshire Jaye Montgomery Ian M. Stoll Madison Lillich Samantha Gillette Daniel Brabec Kun Yan Zhu Erin D. Scully Alison R. Gerken William R. Morrison, III |
| author_sort | Jacqueline M. Maille |
| collection | DOAJ |
| description | Theocolax elegans (Hymenoptera: Pteromalidae) is a potential postharvest biocontrol agent whose host range includes Sitophilus oryzae (Coleoptera: Curculionidae) and Rhyzopertha dominica (Coleoptera: Bostrichidae). Both host species are cosmopolitan and destructive pests of bulk wheat. In addition, either species could be used when mass rearing T. elegans. The Hopkins-Host Selection principle suggests the natal host environment (e.g., the habitat in which a wasp emerges from a pupa) may influence the semiochemicals an organism utilizes when foraging for oviposition sites. Thus, later efficacy may be impaired if important semiochemicals are lost from the foraging repertoire of T. elegans. In order to investigate the impact of natal host environment on the behavioral response of T. elegans to potential hosts, we reared T. elegans on either S. oryzae or R. dominica for multiple generations. We then evaluated the orientation and taxis of T. elegans to six treatments: S. oryzae, R. dominica, damaged grain + S. oryzae, damaged grain + R. dominica, damaged grain + insects from the natal environment, or an undamaged control. We found T. elegans reared on R. dominica most preferred damaged grain from R. dominica in a four-way olfactometer, which was 4.2-fold more often chosen than S. oryzae individuals alone. Treatments containing R. dominica were differentiated from others based on headspace volatiles while S. oryzae-infested grain generally overlapped with uninfested grain. Both rearing host and subsequent foraging host affected efficacy of T. elegans released in a pilot-scale elevator. Wasps appeared most effective in suppressing grain damage by 35–38 % when reared on R. dominica and foraging for R. dominica compared to S. oryzae-reared wasps that only reduced damage by 1–18 %. Sitophilus oryzae-reared wasps only effectively foraged on hosts up to 0.5 m, while R. dominica-reared wasps foraged successfully up to 4 m. Overall, we found that the natal host and chemical cues significantly affected taxis and foraging by T. elegans, suggesting that careful attention should be paid to the mass rearing procedure for this parasitoid. |
| format | Article |
| id | doaj-art-d70a5669341d4fdcac0f1270850ffc1b |
| institution | Kabale University |
| issn | 1049-9644 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Biological Control |
| spelling | doaj-art-d70a5669341d4fdcac0f1270850ffc1b2025-01-09T06:13:09ZengElsevierBiological Control1049-96442025-01-01200105665Subsequent chemical and foraging ecology preferences of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae) reared on two alternate stored product host insectsJacqueline M. Maille0Chloe E. Albin1Rachel R. Harman2Matthew C. Hetherington3Sabita Ranabhat4Jennifer Abshire5Jaye Montgomery6Ian M. Stoll7Madison Lillich8Samantha Gillette9Daniel Brabec10Kun Yan Zhu11Erin D. Scully12Alison R. Gerken13William R. Morrison, III14Department of Entomology, Kansas State University, 123 W. Waters Hall, Manhattan, KS 66506-4004, United StatesDepartment of Engineering, Kansas State University, 1046 Rathbone Hall, 1701B Platt St., Manhattan, KS 66506, United StatesUSDA-ARS, Center for Grain and Animal Health Research, 1515 College Ave., Manhattan, KS 66502, United StatesUSDA-ARS, Center for Grain and Animal Health Research, 1515 College Ave., Manhattan, KS 66502, United StatesDepartment of Entomology, Kansas State University, 123 W. Waters Hall, Manhattan, KS 66506-4004, United StatesUSDA-ARS, Center for Grain and Animal Health Research, 1515 College Ave., Manhattan, KS 66502, United StatesDepartment of Entomology, Kansas State University, 123 W. Waters Hall, Manhattan, KS 66506-4004, United StatesDepartment of Biomedical Sciences, University of Missouri, 1520 East Rollins Street, Columbia, MO 65211, United StatesDepartment of Entomology, Kansas State University, 123 W. Waters Hall, Manhattan, KS 66506-4004, United States6439 N. Burr Oak Ct., Parkville, MO 64152, United StatesUSDA-ARS, Center for Grain and Animal Health Research, 1515 College Ave., Manhattan, KS 66502, United StatesDepartment of Entomology, Kansas State University, 123 W. Waters Hall, Manhattan, KS 66506-4004, United StatesUSDA-ARS, Center for Grain and Animal Health Research, 1515 College Ave., Manhattan, KS 66502, United StatesUSDA-ARS, Center for Grain and Animal Health Research, 1515 College Ave., Manhattan, KS 66502, United StatesUSDA-ARS, Center for Grain and Animal Health Research, 1515 College Ave., Manhattan, KS 66502, United States; Corresponding author.Theocolax elegans (Hymenoptera: Pteromalidae) is a potential postharvest biocontrol agent whose host range includes Sitophilus oryzae (Coleoptera: Curculionidae) and Rhyzopertha dominica (Coleoptera: Bostrichidae). Both host species are cosmopolitan and destructive pests of bulk wheat. In addition, either species could be used when mass rearing T. elegans. The Hopkins-Host Selection principle suggests the natal host environment (e.g., the habitat in which a wasp emerges from a pupa) may influence the semiochemicals an organism utilizes when foraging for oviposition sites. Thus, later efficacy may be impaired if important semiochemicals are lost from the foraging repertoire of T. elegans. In order to investigate the impact of natal host environment on the behavioral response of T. elegans to potential hosts, we reared T. elegans on either S. oryzae or R. dominica for multiple generations. We then evaluated the orientation and taxis of T. elegans to six treatments: S. oryzae, R. dominica, damaged grain + S. oryzae, damaged grain + R. dominica, damaged grain + insects from the natal environment, or an undamaged control. We found T. elegans reared on R. dominica most preferred damaged grain from R. dominica in a four-way olfactometer, which was 4.2-fold more often chosen than S. oryzae individuals alone. Treatments containing R. dominica were differentiated from others based on headspace volatiles while S. oryzae-infested grain generally overlapped with uninfested grain. Both rearing host and subsequent foraging host affected efficacy of T. elegans released in a pilot-scale elevator. Wasps appeared most effective in suppressing grain damage by 35–38 % when reared on R. dominica and foraging for R. dominica compared to S. oryzae-reared wasps that only reduced damage by 1–18 %. Sitophilus oryzae-reared wasps only effectively foraged on hosts up to 0.5 m, while R. dominica-reared wasps foraged successfully up to 4 m. Overall, we found that the natal host and chemical cues significantly affected taxis and foraging by T. elegans, suggesting that careful attention should be paid to the mass rearing procedure for this parasitoid.http://www.sciencedirect.com/science/article/pii/S1049964424002305Lesser grain borerRice weevilChemotaxisBiological controlStored products |
| spellingShingle | Jacqueline M. Maille Chloe E. Albin Rachel R. Harman Matthew C. Hetherington Sabita Ranabhat Jennifer Abshire Jaye Montgomery Ian M. Stoll Madison Lillich Samantha Gillette Daniel Brabec Kun Yan Zhu Erin D. Scully Alison R. Gerken William R. Morrison, III Subsequent chemical and foraging ecology preferences of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae) reared on two alternate stored product host insects Biological Control Lesser grain borer Rice weevil Chemotaxis Biological control Stored products |
| title | Subsequent chemical and foraging ecology preferences of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae) reared on two alternate stored product host insects |
| title_full | Subsequent chemical and foraging ecology preferences of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae) reared on two alternate stored product host insects |
| title_fullStr | Subsequent chemical and foraging ecology preferences of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae) reared on two alternate stored product host insects |
| title_full_unstemmed | Subsequent chemical and foraging ecology preferences of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae) reared on two alternate stored product host insects |
| title_short | Subsequent chemical and foraging ecology preferences of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae) reared on two alternate stored product host insects |
| title_sort | subsequent chemical and foraging ecology preferences of theocolax elegans westwood hymenoptera pteromalidae reared on two alternate stored product host insects |
| topic | Lesser grain borer Rice weevil Chemotaxis Biological control Stored products |
| url | http://www.sciencedirect.com/science/article/pii/S1049964424002305 |
| work_keys_str_mv | AT jacquelinemmaille subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT chloeealbin subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT rachelrharman subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT matthewchetherington subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT sabitaranabhat subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT jenniferabshire subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT jayemontgomery subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT ianmstoll subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT madisonlillich subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT samanthagillette subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT danielbrabec subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT kunyanzhu subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT erindscully subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT alisonrgerken subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects AT williamrmorrisoniii subsequentchemicalandforagingecologypreferencesoftheocolaxeleganswestwoodhymenopterapteromalidaerearedontwoalternatestoredproducthostinsects |