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| Content Provider | Springer Nature Link |
|---|---|
| Author | Olckers, Terence Borea, Candice K. |
| Copyright Year | 2008 |
| Abstract | The South American tree Solanum mauritianum Scopoli (Solanaceae), a major environmental weed in South Africa and New Zealand, has been targeted for biological control, with releases of agents restricted to South Africa. The leaf-sucking lace bug, Gargaphia decoris Drake (Tingidae), so far the only agent released, has become established in South Africa with recent reports of severe damage at a few field sites. To evaluate the insect’s suitability for release in New Zealand, host-specificity testing was carried out in South Africa in laboratory and open-field trials, with selected cultivated and native species of Solanum from New Zealand. No-choice tests confirmed the results of earlier trials that none of the three native New Zealand Solanum species are acceptable as hosts. Although the cultivated Solanum muricatum Aiton and S. quitoense Lam. also proved unacceptable as hosts, some cultivars of S. melongena L. (eggplant) supported feeding, development and oviposition in the no-choice tests. Although eggplant was routinely accepted under laboratory no-choice conditions in this and previous studies, observations in the native and introduced range of G. decoris, open-field trials and risk assessment based on multiple measures of insect performance indicate that the insect has a host range restricted to S. mauritianum. These results strongly support the proposed release of G. decoris in New Zealand because risks to non-target native and cultivated Solanum species appear to be negligible. An application for permission to release G. decoris in New Zealand will be submitted to the regulatory authority. |
| Starting Page | 143 |
| Ending Page | 154 |
| Page Count | 12 |
| File Format | |
| ISSN | 13866141 |
| Journal | BioControl |
| Volume Number | 54 |
| Issue Number | 1 |
| e-ISSN | 15738248 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2008-06-01 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Biological weed control Bugweed Host specificity Risk assessment Tingidae Woolly nightshade Behavioural Sciences Animal Biochemistry Animal Ecology Agriculture Plant Pathology Entomology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Insect Science Agronomy and Crop Science |
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