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Bugs and diseases [Vols 31 to current]

Description

The Bugs and Diseases newsletter informs forest industry and other forestry related personnel about current forest health issues.

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Predicted per cent MPB mortality

Description

Extended periods of extreme cold (below -38°C) can cause up to 95 per cent mortality of over-wintering mountain pine beetles, which is required to suppress populations. These maps display... More ≫

Description

Extended periods of extreme cold (below -38°C) can cause up to 95 per cent mortality of over-wintering mountain pine beetles, which is required to suppress populations. These maps display predicted per cent mortality, based on a mountain pine beetle overwinter mortality model used by the province to predict per cent mortality based on winter temperatures and location data. These mortality predictions, combined with aerial surveys and ground assessments conducted in August/September, help the province prioritize areas for single tree treatment and timber harvest control tactics implemented in the fall and winter.

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Mountain pine beetle management zones [map]

Description

Updated annually, this map delineates the mountain pine beetle management zones in the province, and identifies zones considered leading edge zones and inactive holding zones.

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Mountain pine beetle heli-GPS survey [map]

Description

Heli-GPS surveys use rotary-wing aircraft to pinpoint the locations of mountain pine beetle -killed pine trees. Surveys are conducted from early-August to mid-September when the colour of pine... More ≫

Description

Heli-GPS surveys use rotary-wing aircraft to pinpoint the locations of mountain pine beetle -killed pine trees. Surveys are conducted from early-August to mid-September when the colour of pine trees killed by mountain pine beetles during the previous year makes them distinguishable from older mountain pine beetle-killed pine trees. The aerial survey area typically covers areas where mountain pine beetle populations are actively killing trees in susceptible pine forests.

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Mountain pine beetle heli-gps survey

Description

Maps showing areas of the province in which forest damage has occurred due to the mountain pine beetle. On the maps, "red trees" are dead, red-needled trees that have been attacked by the mountain... More ≫

Description

Maps showing areas of the province in which forest damage has occurred due to the mountain pine beetle. On the maps, "red trees" are dead, red-needled trees that have been attacked by the mountain pine beetle. Forest damage maps are generally released annually and are based on the most current information available from various surveys and reports.

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Pine stands affected by the mountain pine beetle in Alberta

Description

Map showing pine stands affected by the mountain pine beetles. The map displays all pine stands in Alberta, pine stands affected by mountain pine beetle to 2018, and new stands affected by MPB in 2019. More ≫

Description

Map showing pine stands affected by the mountain pine beetles. The map displays all pine stands in Alberta, pine stands affected by mountain pine beetle to 2018, and new stands affected by MPB in 2019.

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Mountain pine beetle : red tree density [map]

Description

Map showing the density per square kilometer of trees affected by mountain pine beetles.

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Endangered pine directive : mountain pine beetle infested stands

Description

The purpose of this directive is to outline the process and procedures for determining the designation of endangered timber on pine volumes within stands infested with mountain pine beetle within... More ≫

Description

The purpose of this directive is to outline the process and procedures for determining the designation of endangered timber on pine volumes within stands infested with mountain pine beetle within the Inactive Holding Zone.

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Mountain pine beetle : green-to-red ratio [map]

Description

Map showing the ratio of currently-attacked trees (live, green-needled trees or green trees) to previously-attacked (dead, red-needled trees or red trees) at each survey site.

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Mountain pine beetle : red tree attack

Description

Map showing the attack density per square kilometer of trees affected by mountain pine beetles.

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