Otieno, Jacinter Atieno, Pallmann, Philip  ORCID: https://orcid.org/0000-0001-8274-9696 and Poehling, Hans-Michael
2017.
Additive and synergistic interactions amongst Orius laevigatus (Heteroptera: Anthocoridae), entomopathogens and azadirachtin for controlling western flower thrips (Thysanoptera: Thripidae).
BioControl
62
(1)
, pp. 85-95.
10.1007/s10526-016-9767-7
|
Abstract
This study evaluated the efficacy of the foliage-dwelling predator Orius laevigatus, soil applied entomopathogens and azadirachtin alone and in combinations for controlling western flower thrips (WFT). Evaluated products were Nemastar®Steinernema carpocapsae (E-nema) and O. laevigatus (Re-natur), Metarhizium anisopliae isolate ICIPE-69 and NeemAzal-T (azadirachtin) (Trifolio). Efficacy against WFT was significantly improved by combined treatments achieving 62–97 % reduction in WFT emergence, compared to 45–74 % in single treatments, and interactions resulted in two synergistic and eight additive responses. Metarhizium-based treatments reduced WFT survival by 93–99.6 % when late mortality by mycosis was considered. Halving the number of released predators did not significantly reduce efficacy (86–96 vs. 76–88 % thrips reduction), and when Orius was introduced to target L1 of WFT, 96–98 % reduction was achieved while only 71–89 % for L2. Early release of O. laevigatus and combination with soil application of NeemAzal-T and/or entomopathogens can be a successful and reliable biocontrol strategy for WFT.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Medicine |
| Subjects: | R Medicine > R Medicine (General) |
| Publisher: | Springer Verlag |
| ISSN: | 1386-6141 |
| Date of Acceptance: | 27 September 2016 |
| Last Modified: | 03 Nov 2022 09:41 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/105704 |
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