dc.contributor.author |
Shamim, S.A. |
|
dc.contributor.author |
Islam, W. |
|
dc.contributor.author |
Mondal, K.A.M.S.H. |
|
dc.date.accessioned |
2023-05-09T03:40:57Z |
|
dc.date.available |
2023-05-09T03:40:57Z |
|
dc.date.issued |
2000-05-08 |
|
dc.identifier.issn |
1391-3646 |
|
dc.identifier.uri |
http://ir.lib.ruh.ac.lk/xmlui/handle/iruor/12622 |
|
dc.description.abstract |
Aprostocetus {Tetrastichus) hagenowii (Ratzeburg), an oothecal parasitoid of the American cockroach,
Periplaneta americana (L.) was released into experimental cartons to determine its potential as a biological
control agent. The parasitoids were released into experimental cartons during March-June and JuSy-
October periods. Approximately 600 adult parasitoids of mixed sex were released three times per week.
Percent parasitism of viable oothecae were 85.93% in March-June and 91.63% in July-October periods
after 7 weeks of release. After 8-11 weeks when F, generation of the parasitoid was emerging, the percent
parasitism was 89.29% in March-June and 96.51% in July-October whereas after weeks 12-17, parasitism
was 87.5 and 94.52% respectively. A. hagenowii also showed a male : female sex-ratio of 1.4:1 during both
periods. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Faculty of Agriculture, University of Ruhuna, SriLanka |
en_US |
dc.subject |
Aprostocetus hagenowii |
en_US |
dc.subject |
Biological control |
en_US |
dc.subject |
Cockroach |
en_US |
dc.subject |
Periplaneta americana |
en_US |
dc.title |
Release of Aprostocetm hagenowii (Rateebiirg) (Hymenoptera: Eulophidae) adults for the control of Periplaneta americana (L.) |
en_US |
dc.type |
Article |
en_US |