Colusa County
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Colusa County

Posts Tagged: tree

Pines, Drought and Beetles

Figure 1. Tree roots often grow near the surface when soil is compacted, or when the only water available comes from shallow irrigation.

[From the August 2015 issue of the UC IPM Green Bulletin] Although pine trees are comparatively drought tolerant, there comes a point where even hardy trees become stressed by lack of water. Stressed pines frequently exhibit symptoms such as thin,...

Posted on Thursday, August 27, 2015 at 4:55 PM
Tags: bark (3), beetle (10), boring (1), drought (11), infestation (5), Pest Notes (57), pine (2), pitch (1), sap (1), Swain (2), tree (16), UC IPM (219)

Pruning and Tree Physiology: The Bad and The Ugly

A coast live oak (Quercus agrifolia) in the initial stages of decline from Armillaria root rot.

[From Dec 2013 issue of the UC IPM Green Bulletin newsletter] Pruning in Practice Pruning is perhaps the most common tree maintenance activity that is undertaken on urban and ornamental trees. This is in sharp contrast with forest trees, which are...

Posted on Tuesday, July 8, 2014 at 12:22 PM
Tags: Lacan (2), pruning (5), tree (16)

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