Host-age preference of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae), a larval parasitoid of the lesser grain borer, Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) and the cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae)
The pteromalids (Hymenoptera: Pteromalidae) Anisopteromalus calandrae (Howard), Dinarmus basalis (Rondani), Lariophagus distinguendus (Förster), Pteromalus cerealellae (Ashmead) and Theocolax elegans (Westwood) are solitary larval ectoparasitoids used to suppress several species of stored-product in...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | deu |
| Published: |
Julius Kühn-Institut
2018-11-01
|
| Series: | Julius-Kühn-Archiv |
| Subjects: | |
| Online Access: | https://www.openagrar.de/receive/openagrar_mods_00077999 |
| _version_ | 1797405199228207104 |
|---|---|
| author | Sitthichaiyakul, Saruta Kengkanpanich, Rungsima Noochanapai, Pavinee Amornsak, Weerawan |
| author_facet | Sitthichaiyakul, Saruta Kengkanpanich, Rungsima Noochanapai, Pavinee Amornsak, Weerawan |
| author_sort | Sitthichaiyakul, Saruta |
| collection | DOAJ |
| description | The pteromalids (Hymenoptera: Pteromalidae) Anisopteromalus calandrae (Howard), Dinarmus basalis (Rondani), Lariophagus distinguendus (Förster), Pteromalus cerealellae (Ashmead) and Theocolax elegans (Westwood) are solitary larval ectoparasitoids used to suppress several species of stored-product insects that infest storage grains. We investigated host-age preference of T. elegans using no-choice laboratory experiments. Lesser grain borer, Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) larvae (9, 11, 13, 15, 17, 19, 21 and 23 days-old) in wheat grain kernel and cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) larvae (5–19 days-old) in cowpea beans were exposed to neonate T. elegans mated females to lay their eggs for two days. Our results showed that the highest number of parasitoids emerged from 23 days-old R. dominica larvae. The numbers of parasitoids emerged from 19, 21 and 23 days-old R. dominica larvae were statistically significantly different in experiments (F-test, 0.05). Progeny of T. elegans reared from R. dominica and C. maculatus larvae were either fully-winged (macropterous), short-winged (brachypterous) or wingless (apterous). Female T. elegans were rarely host-feeding on C. maculatus larvae. Theocolax elegans progeny were emerging from 14 days-old C. maculatus larvae only. We discussed insectary mass production of T. elegans for biological control. |
| first_indexed | 2024-03-09T03:06:22Z |
| format | Article |
| id | doaj.art-c9724f6e15d541eab3c0a299fb21138b |
| institution | Directory Open Access Journal |
| issn | 1868-9892 2199-921X |
| language | deu |
| last_indexed | 2024-03-09T03:06:22Z |
| publishDate | 2018-11-01 |
| publisher | Julius Kühn-Institut |
| record_format | Article |
| series | Julius-Kühn-Archiv |
| spelling | doaj.art-c9724f6e15d541eab3c0a299fb21138b2023-12-04T07:15:18ZdeuJulius Kühn-InstitutJulius-Kühn-Archiv1868-98922199-921X2018-11-01463145445810.5073/jka.2018.463.100Host-age preference of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae), a larval parasitoid of the lesser grain borer, Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) and the cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae)Sitthichaiyakul, Saruta0Kengkanpanich, Rungsima1Noochanapai, Pavinee2Amornsak, Weerawan 3Post-harvest and Processing Research and Development Division, Department of Agriculture, Ministry of Agriculture and Cooperatives, Bangkok, ThailandPost-harvest and Processing Research and Development Division, Department of Agriculture, Ministry of Agriculture and Cooperatives, Bangkok, ThailandPost-harvest and Processing Research and Development Division, Department of Agriculture, Ministry of Agriculture and Cooperatives, Bangkok, ThailandDepartment of Entomology, Faculty of Agriculture, Kasetsart University, Bangkok, ThailandThe pteromalids (Hymenoptera: Pteromalidae) Anisopteromalus calandrae (Howard), Dinarmus basalis (Rondani), Lariophagus distinguendus (Förster), Pteromalus cerealellae (Ashmead) and Theocolax elegans (Westwood) are solitary larval ectoparasitoids used to suppress several species of stored-product insects that infest storage grains. We investigated host-age preference of T. elegans using no-choice laboratory experiments. Lesser grain borer, Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) larvae (9, 11, 13, 15, 17, 19, 21 and 23 days-old) in wheat grain kernel and cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) larvae (5–19 days-old) in cowpea beans were exposed to neonate T. elegans mated females to lay their eggs for two days. Our results showed that the highest number of parasitoids emerged from 23 days-old R. dominica larvae. The numbers of parasitoids emerged from 19, 21 and 23 days-old R. dominica larvae were statistically significantly different in experiments (F-test, 0.05). Progeny of T. elegans reared from R. dominica and C. maculatus larvae were either fully-winged (macropterous), short-winged (brachypterous) or wingless (apterous). Female T. elegans were rarely host-feeding on C. maculatus larvae. Theocolax elegans progeny were emerging from 14 days-old C. maculatus larvae only. We discussed insectary mass production of T. elegans for biological control.https://www.openagrar.de/receive/openagrar_mods_00077999biological controlcallosobruchus maculatushost-age preferencerhyzopertha dominicastored product insects |
| spellingShingle | Sitthichaiyakul, Saruta Kengkanpanich, Rungsima Noochanapai, Pavinee Amornsak, Weerawan Host-age preference of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae), a larval parasitoid of the lesser grain borer, Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) and the cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) Julius-Kühn-Archiv biological control callosobruchus maculatus host-age preference rhyzopertha dominica stored product insects |
| title | Host-age preference of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae), a larval parasitoid of the lesser grain borer, Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) and the cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) |
| title_full | Host-age preference of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae), a larval parasitoid of the lesser grain borer, Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) and the cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) |
| title_fullStr | Host-age preference of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae), a larval parasitoid of the lesser grain borer, Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) and the cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) |
| title_full_unstemmed | Host-age preference of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae), a larval parasitoid of the lesser grain borer, Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) and the cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) |
| title_short | Host-age preference of Theocolax elegans (Westwood) (Hymenoptera: Pteromalidae), a larval parasitoid of the lesser grain borer, Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) and the cowpea weevil, Callosobruchus maculatus (Fabricius) (Coleoptera: Chrysomelidae) |
| title_sort | host age preference of theocolax elegans westwood hymenoptera pteromalidae a larval parasitoid of the lesser grain borer rhyzopertha dominica fabricius coleoptera bostrichidae and the cowpea weevil callosobruchus maculatus fabricius coleoptera chrysomelidae |
| topic | biological control callosobruchus maculatus host-age preference rhyzopertha dominica stored product insects |
| url | https://www.openagrar.de/receive/openagrar_mods_00077999 |
| work_keys_str_mv | AT sitthichaiyakulsaruta hostagepreferenceoftheocolaxeleganswestwoodhymenopterapteromalidaealarvalparasitoidofthelessergrainborerrhyzoperthadominicafabriciuscoleopterabostrichidaeandthecowpeaweevilcallosobruchusmaculatusfabriciuscoleopterachrysomelidae AT kengkanpanichrungsima hostagepreferenceoftheocolaxeleganswestwoodhymenopterapteromalidaealarvalparasitoidofthelessergrainborerrhyzoperthadominicafabriciuscoleopterabostrichidaeandthecowpeaweevilcallosobruchusmaculatusfabriciuscoleopterachrysomelidae AT noochanapaipavinee hostagepreferenceoftheocolaxeleganswestwoodhymenopterapteromalidaealarvalparasitoidofthelessergrainborerrhyzoperthadominicafabriciuscoleopterabostrichidaeandthecowpeaweevilcallosobruchusmaculatusfabriciuscoleopterachrysomelidae AT amornsakweerawan hostagepreferenceoftheocolaxeleganswestwoodhymenopterapteromalidaealarvalparasitoidofthelessergrainborerrhyzoperthadominicafabriciuscoleopterabostrichidaeandthecowpeaweevilcallosobruchusmaculatusfabriciuscoleopterachrysomelidae |