Pest Management Science (2019) 75, 787-792
Aliesha M. Kean, Mette-Cecilie Nielsen, Melanie M. Davidson, Ruth C. Butler and Jessica Vereijssen (2019)
Host plant influences establishment and performance of Amblydromalus limonicus, a predator for Bactericera cockerelli
Pest Management Science 75 (3), 787-792
Abstract:
BACKGROUND
Management of tomato potato psyllid (TPP; Bactericera cockerelli (Sulc)) predominantly relies on insecticides. However, biological control agents (BCAs) could provide viable alternatives to suppress TPP populations. In this laboratory experiment, we assessed the predatory mite Amblydromalus limonicus (Garman and McGregor) as a BCA of TPP on whole plants of two tomato and two pepper cultivars over a 5-week period.
RESULTS
Plant species and cultivar had a significant effect on the ability of A. limonicus to suppress populations of TPP. Numbers of TPP were suppressed by A. limonicus on four pepper treatments, but on only one tomato treatment. Amblydromalus limonicus could survive and reproduce on pepper and tomato, but more were found on pepper at the end of the 5-week period.
CONCLUSION
Amblydromalus limonicus has the potential to suppress TPP populations on pepper but not tomato cultivars, based on the present study. Possible reasons for these results include the difference in leaf morphology between species, and higher predator:prey ratios on pepper than tomato because of the longer TPP generation time on pepper.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Melanie M. Davidson, Mette-Cecilie Nielsen
Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation
evaluation - screening - selection
