| A global review of risk-benefit-cost analysis for the introduction of classical biological control agents against weeds: a crisis in the making? AW Sheppard, R Hill, RA DeClerck-Floate, A McClay, T Olckers, ... | 197 | 2003 |
| Biological control initiatives against water hyacinth in South Africa: constraining factors, success and new courses of action MP Hill, T Olckers ACIAR proceedings, 33-38, 2000 | 144 | 2000 |
| Targeting emerging weeds for biological control in South Africa: the benefits of halting the spread of alien plants at an early stage of their invasion: working for water T Olckers South African Journal of Science 100 (1), 64-68, 2004 | 115 | 2004 |
| Biological control of Solanum mauritianum Scopoli (Solanaceae) in South Africa: a review of candidate agents, progress and future prospects. T Olckers Biological control of weeds in South Africa (1990-1998)., 65-73, 1999 | 70 | 1999 |
| Insect herbivores associated with species of Solanum (Solanaceae) in northeastern Argentina and southeastern Paraguay, with reference to biological control of weeds in South … T Olckers, JC Medal, DE Gandolfo Florida Entomologist 85 (1), 254-260, 2002 | 67 | 2002 |
| Biological control of weeds in South Africa (1990-1998). T Olckers, MP Hill | 66 | 1999 |
| Biology, host specificity and risk assessment of Gargaphia decoris, the first agent to be released in South Africa for the biological control of the invasive tree Solanum … T Olckers BioControl 45 (3), 373-388, 2000 | 65 | 2000 |
| Interpreting ambiguous results of host-specificity tests in biological control of weeds: assessment of two Leptinotarsa species (Chrysomelidae) for the control of Solanum … T Olckers, HG Zimmermann, JH Hoffmann Biological Control 5 (3), 336-344, 1995 | 65 | 1995 |
| Biological control of silverleaf nightshade, Solanum elaeagnifolium, and bugweed, Solanum mauritianum, (Solanaceae) in South Africa T Olckers, HG Zimmermann Agriculture, Ecosystems & Environment 37 (1), 137-155, 1991 | 63 | 1991 |
| Biological control of Leucaena leucocephala (Lam.) de Wit (Fabaceae) in South Africa : a tale of opportunism, seed feeders and unanswered questions T Olckers African Entomology 19 (1), 356-365, 2011 | 58 | 2011 |
| Impoverished insect herbivore faunas on the exotic bugweed Solanum mauritianum Scop. relative to indigenous Solanum species in Natal/KwaZulu and the Transkei PE Olckers, T.* & Hulley Journal of the Entomological Society of Southern Africa 54 (1), 39-50, 1991 | 57 | 1991 |
| Biological control of Solanum mauritianum Scop. (Solanaceae) in South Africa : will perseverance pay off? T Olckers African Entomology 19 (1), 416-426, 2011 | 55 | 2011 |
| The initiation of biological control programmes against Solanum elaeagnifolium Cavanilles and S. sisymbriifolium Lamarck (Solanaceae) in South Africa T Olckers, JH Hoffmann, VC Moran, FAC Impson, MP Hill African Entomology Memoir 1, 55-63, 1999 | 52 | 1999 |
| Assessing the risks associated with the release of a flowerbud weevil, Anthonomus santacruzi, against the invasive tree Solanum mauritianum in South Africa T Olckers Biological Control 28 (3), 302-312, 2003 | 42 | 2003 |
| Assessing the risks of releasing a sap-sucking lace bug, Gargaphia decoris, against the invasive tree Solanum mauritianum in New Zealand T Olckers, CK Borea BioControl 54, 143-154, 2009 | 34 | 2009 |
| Importance of preintroduction surveys in the biological control of Solanum weeds in South Africa T Olckers, PE Hulley Agriculture, ecosystems & environment 52 (2), 179-185, 1995 | 33 | 1995 |
| Politics and ecology in the management of alien invasive woody trees: the pivotal role of biological control agents that diminish seed production VC Moran, JH Hoffmann, T Olckers Proceedings of the XI International Symposium on Biological Control of Weeds …, 2004 | 32 | 2004 |
| Phytophagous arthropods associated with Solanum mauritianum Scopoli (Solanaceae) in the First Plateau of Paraná, Brazil: a cooperative project on biological control of weeds … JH Pedrosa-Macedo, T Olckers, MD Vitorino, MG Caxambu Neotropical Entomology 32, 519-522, 2003 | 32 | 2003 |
| Reassessment of the biology and host range of Acanthoscelides macrophthalmus (Chrysomelidae: Bruchinae), a seed-feeding beetle released for the biological control of … Z Shoba, T Olckers African Entomology 18 (2), 1-9, 2010 | 28 | 2010 |
| Biology and host range of Platyphora semiviridis, a leaf beetle evaluated as a potential biological control agent for Solanum mauritianum in South Africa T Olckers BioControl 43 (2), 225-239, 1998 | 28 | 1998 |