Field Trials of Wild Entomopathogenic Fungi and Commercial Steinernema carpocapsae on the Large Pine Weevil (Hylobius abietis [L.]) Including an Assessment of Non-Target Effects
2024

Using Fungi and Nematodes to Control the Large Pine Weevil

Sample size: 20 publication 10 minutes Evidence: high

Author Information

Author(s): Quinzo-Ortega Luis M., Swaney William T., Moore Roger, Rae Robbie, Williams Christopher D.

Primary Institution: Liverpool John Moores University

Hypothesis

Can wild entomopathogenic fungi and commercial nematodes effectively control the large pine weevil while being safe for non-target insects?

Conclusion

The study found that both wild fungi and nematodes significantly reduced large pine weevil populations without harming non-target insects.

Supporting Evidence

  • All treatments significantly reduced weevil emergence compared to the control.
  • The mixed treatment showed the greatest impact on weevil populations.
  • Non-target insects were not adversely affected by the treatments.
  • Statistical analysis confirmed significant differences in infection types across treatments.
  • Wild fungi and nematodes can be effective alternatives to synthetic pesticides.

Takeaway

Scientists tested natural enemies like fungi and tiny worms to kill a harmful bug that eats young trees, and they found it worked well without hurting other bugs.

Methodology

Field trials were conducted using a randomized block design with treatments of fungi, nematodes, and a combination, compared to a control.

Potential Biases

Potential bias in treatment effects due to environmental variability.

Limitations

The study was limited to two sites and may not represent all forest conditions.

Participant Demographics

Field trials conducted in clear-felled spruce plantations in Wales and Scotland.

Statistical Information

P-Value

0.007

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.3390/insects15120967

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