Reference Viewer


Cut-and-Paste Reference:
Varia, S. 2020. Investigations into the potential of classical biological control of the invasive aquatic weed, Crassula helmsii. Unpublished Ph.D. dissertation. University of London, London, England. https://pure.royalholloway.ac.uk/portal/files/39759442/2020VariaSPhD.pdf.
Reference Details:
Reference Number: 39704
Type: Thesis or Dissertation
Author: Varia, S.
Date (year): 2020
Title:Investigations into the potential of classical biological control of the invasive aquatic weed, Crassula helmsii
Thesis/Dissertation Type: Ph.D. dissertation
University:University of London
University Location:London, England
Pages: 175
Keywords: Crassula helmsii, swamp stonecrop, mitigation, gall-forming mite, glyphosate
Species Profiles and Specimens that use this Reference:

Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/13/2026].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.