| Article | Lead Author | Year |
| Response of safflower cultivars to Puccinia jaceae collected from diffuse knapweed in eastern Europe | Watson | 1980 |
| The search for effective biological control agents in Europe 1. Diffuse and Spotted Knapweed | Schroeder | 1984 |
| Reaction of safflower cultivars to Puccinia jaceae, a potential biocontrol agent for diffuse knapweed | Mortensen | 1984 |
| Biological control of weeds in Washington: status report | Piper | 1984 |
| Status of biological weed control in Montana | Story | 1984 |
| Host damage by Pterolonche inspersa (Lepidoptera: Pterolonchidae) and Bangasternus fausti (Coleoptera: Curculionidae) on diffuse knapweed (Centaurea diffusa) (ABSTRACT ONLY) | Dunn | 1988 |
| An experimental and phytocentric approach for selecting effective biological control agents: Insects on spotted and diffuse knapweed, Centaurea maculosa and C. diffusa (Compositae) | Muller | 1988 |
| The functional forms of density-dependent birth and death rates in diffuse knapweed (Centaurea diffusa) explain why it has not been controlled by Urophora affinis, U. Quadrifasciata and Sphenoptera jugoslavica | Powell | 1988 |
| Modification of flowerheads of diffuse knapweed by the gall-inducers Urophora affinis and Urophora quadrifasciata (Diptera: Tephritidae) | Shorthouse | 1988 |
| Field experiment with the European knapweed rust (Puccinia jaceae) on safflower, sweet sultan and bachelor's button | Hasan | 1988 |
| The ability of plants to compensate for insect attack: Why biological control of weeds with insects is so difficult | Myers | 1988 |
| Long-term studies and predictive models in the biological control of diffuse knapweed | Myers | 1992 |
| Sclerotinia sclerotiorum as a potential biological control agents for diffuse knapweed on dry rangelands in interior British Columbia | Mortensen | 1992 |
| What can we learn from biological control failures? | Myers | 1999 |
| Why Reduced Seed Production is Not Necessarily Translated Into Successful Biological Weed Control | Myers | 1999 |
| Population structure, ploidy levels and allelopathy of Centaurea maculosa (spotted knapweed) and C. diffusa (diffuse knapweed) in North America and Eurasia | Hufbauer | 2003 |
| Impact of biological control agents on Centaurea diffusa (diffuse knapweed) in central Montana | Smith | 2003 |
| Effects of site characteristics on establishment of Larinus minutus (Coleoptera: Curculionidae), a capitulum-infesting weevil of diffuse knapweed, Centaurea diffusa (Asteraceae), in north-central and eastern Washington State, USA (ABSTRACT ONLY) | Palmer | 2003 |
| Effect of climate on biological control: a case study with diffuse knapweed in British Columbia, Canada (ABSTRACT ONLY) | Jackson | 2007 |
| Successful biological control of diffuse knapweed in British Columbia, Canada (ABSTRACT ONLY) | Myers | 2007 |
| Correction to a paper published in the PROC. ON THE XI INT. SYMP. ON BC WEEDS, Canberra Australia, page 121: Population structure, ploidy levels and allelopathy of Centaurea maculosa and C. diffusa in North America and Eurasia | Hufbauer | 2007 |
