Hylobius Management Support System training day

22nd April 2009

What was the event?

The Hylobius Management Support System is designed to help foresters predict and reduce damage and costs due to large pine weevil, Hylobius abietis, in upland spruce and pine plantations. This training course helps foresters develop an understanding, in a simple and straightforward way, of how Hylobius populations behave on the site and when they will leave it. Armed with this information and the new management support system, they can then devise site-specific restocking programmes. These can range from no intervention at all - such as simply waiting until after the last Hylobius have departed before replanting the site - to some pesticide use, some nematode use, or a combination of these and other factors, depending on the severity of infestation.


At the end of the course trainees are familiar with:

  • The biology and population dynamics of the large pine weevil (Hylobius abietis), and the main measures of population control.
  • Population monitoring techniques.
  • The Hylobius Management Support System (HMSS) software.

Course content

The course is partly field-based; including practical demonstrations and fieldwork. The indoor part includes a practical exercise using the HMSS software. The following topics are covered:

  • Biology and population dynamics of the large pine weevil
  • Measures of population control
  • Monitoring: billet specification and site layout
  • Monitoring: data collection
  • HMSS: data input
  • HMSS: interpretation of results and analysis of restocking scenarios.

Who was the event suitable for?

Field staff and managers involved in weevil control on restocking sites.

Where did the event take place?

Coed y Gororau Forest District
Powells Place
Powells Lane
SY21 7JY

Additonal information

The course will involve both indoor and outdoor sessions and therefore participants must come equipped suitably for the forest.

Participants are asked to bring along their own packed lunches.


For further information please contact:

Jens Haufe: jens.haufe@forestry.gsi.gov.uk or Dr Roger Moore: roger.moore@forestry.gsi.gov.uk