Aggregation response of Orius niger (Hem.: Anthocoridae) to different densities of Thrips tabaci (Thys.: Thripidae) under laboratory conditions
Aggregation response of the predatory bug Orius niger (Wolff) at different densities (5, 10, 20, 30, 40 and 50) of the second instar nymphs of Thrips tabaci Lind. was examined on a cucumber leaf disc as a patch. The number of predatory bugs and their allocated time per patch was recorded. The index...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Entomological Society of Iran
2011-08-01
|
| Series: | نامه انجمن حشرهشناسی ایران |
| Subjects: | |
| Online Access: | https://jesi.areeo.ac.ir/article_105446_931601d46e63233e9830d96dbec14409.pdf |
| _version_ | 1828082960136404992 |
|---|---|
| author | J. Hajizadeh A. Sahragard V. Baniameri F. Salehi |
| author_facet | J. Hajizadeh A. Sahragard V. Baniameri F. Salehi |
| author_sort | J. Hajizadeh |
| collection | DOAJ |
| description | Aggregation response of the predatory bug Orius niger (Wolff) at different densities (5, 10, 20, 30, 40 and 50) of the second instar nymphs of Thrips tabaci Lind. was examined on a cucumber leaf disc as a patch. The number of predatory bugs and their allocated time per patch was recorded. The index (µ), in Hassell & May, at all densities of the predator (1, 2, 4, 8, 16 and 32) appeared greater than zero and, was indicative of its tendency to aggregate in the patches where a higher density of prey occurred. The percentage time spent by the predatory bug at different patch densities of T. tabaci showed that it allocated more time in patches with higher densities of prey. |
| first_indexed | 2024-04-11T04:00:08Z |
| format | Article |
| id | doaj.art-df0e5eee480b433a97070014bb799167 |
| institution | Directory Open Access Journal |
| issn | 0259-9996 2783-3968 |
| language | English |
| last_indexed | 2024-04-11T04:00:08Z |
| publishDate | 2011-08-01 |
| publisher | Entomological Society of Iran |
| record_format | Article |
| series | نامه انجمن حشرهشناسی ایران |
| spelling | doaj.art-df0e5eee480b433a97070014bb7991672023-01-01T23:34:37ZengEntomological Society of Iranنامه انجمن حشرهشناسی ایران0259-99962783-39682011-08-013112535105446Aggregation response of Orius niger (Hem.: Anthocoridae) to different densities of Thrips tabaci (Thys.: Thripidae) under laboratory conditionsJ. HajizadehA. SahragardV. BaniameriF. SalehiAggregation response of the predatory bug Orius niger (Wolff) at different densities (5, 10, 20, 30, 40 and 50) of the second instar nymphs of Thrips tabaci Lind. was examined on a cucumber leaf disc as a patch. The number of predatory bugs and their allocated time per patch was recorded. The index (µ), in Hassell & May, at all densities of the predator (1, 2, 4, 8, 16 and 32) appeared greater than zero and, was indicative of its tendency to aggregate in the patches where a higher density of prey occurred. The percentage time spent by the predatory bug at different patch densities of T. tabaci showed that it allocated more time in patches with higher densities of prey.https://jesi.areeo.ac.ir/article_105446_931601d46e63233e9830d96dbec14409.pdfaggregation responseonion thripsorius niger |
| spellingShingle | J. Hajizadeh A. Sahragard V. Baniameri F. Salehi Aggregation response of Orius niger (Hem.: Anthocoridae) to different densities of Thrips tabaci (Thys.: Thripidae) under laboratory conditions نامه انجمن حشرهشناسی ایران aggregation response onion thrips orius niger |
| title | Aggregation response of Orius niger (Hem.: Anthocoridae) to different densities of Thrips tabaci (Thys.: Thripidae) under laboratory conditions |
| title_full | Aggregation response of Orius niger (Hem.: Anthocoridae) to different densities of Thrips tabaci (Thys.: Thripidae) under laboratory conditions |
| title_fullStr | Aggregation response of Orius niger (Hem.: Anthocoridae) to different densities of Thrips tabaci (Thys.: Thripidae) under laboratory conditions |
| title_full_unstemmed | Aggregation response of Orius niger (Hem.: Anthocoridae) to different densities of Thrips tabaci (Thys.: Thripidae) under laboratory conditions |
| title_short | Aggregation response of Orius niger (Hem.: Anthocoridae) to different densities of Thrips tabaci (Thys.: Thripidae) under laboratory conditions |
| title_sort | aggregation response of orius niger hem anthocoridae to different densities of thrips tabaci thys thripidae under laboratory conditions |
| topic | aggregation response onion thrips orius niger |
| url | https://jesi.areeo.ac.ir/article_105446_931601d46e63233e9830d96dbec14409.pdf |
| work_keys_str_mv | AT jhajizadeh aggregationresponseoforiusnigerhemanthocoridaetodifferentdensitiesofthripstabacithysthripidaeunderlaboratoryconditions AT asahragard aggregationresponseoforiusnigerhemanthocoridaetodifferentdensitiesofthripstabacithysthripidaeunderlaboratoryconditions AT vbaniameri aggregationresponseoforiusnigerhemanthocoridaetodifferentdensitiesofthripstabacithysthripidaeunderlaboratoryconditions AT fsalehi aggregationresponseoforiusnigerhemanthocoridaetodifferentdensitiesofthripstabacithysthripidaeunderlaboratoryconditions |