Insect herbivore damages on white spruce growing in plantations and naturally regenerated under-canopy forest stands

This data was prepared to compare insect damage on white spruce (Picea glauca (Moench) Voss, Pinaceae) growing in plantations with naturally regenerated trees under mature forest canopies in the boreal forest (Québec, Canada). We selected ten sites in the naturally regenerated forest and small, multispecies plantations and sampled ten young trees (per site) in late summer 2020 and again in early and late summer 2021. We recorded overall rates of damage for galls, damage by spruce budworm (Choristoneura fumiferana (Clemens, 1865)), spruce bud midge, spruce budmoth, spruce gall midge, cooley adelgid, defoliation from sawflies and other caterpillars., For our study, we selected ten white spruce trees per site, and ten sites at both plantation and forest sites (naturally regerated under mature forest canopies), ensuring each tree was 2 to 3.5 meters tall and was spaced a minimum of 5 meters apart to avoid overlapping effects. These sites ranged in distance from each other, extending from 100 to 2500 meters, allowing us to capture a representative sample of the habitat variability. We commenced our initial sampling during the late summer of July-August 2020 and conducted follow-up samplings in early (May-early June) and late (July) summer of 2021. Our investigation focused on assessing the damage to the trees' current-year growth (only), by first observing the buds as they began to open in the spring and then assessing the elongated shoots.
To capture the extent of damage, we employed two main approaches: branch sampling and whole-tree surveys during the growing season.
Branch Data: In the late summers of both years (2020 and 2021), we..., , # Insect herbivore damages on white spruce growing in plantations and naturally regenerated under-canopy forest stands

[https://doi.org/10.5061/dryad.bnzs7h4j4](https://doi.org/10.5061/dryad.bnzs7h4j4)

## SHARING/ACCESS INFORMATION

Recommended citation for this dataset: Yataco, A.P.; Noor, S.; Girona, M.M.; Work, T.; Despland, E. (2024). Data from: Insect Herbivory on Young White Spruce in Small Open Plantations and under Natural Canopies Forests. Dryad Digital Repository. [https://doi.org/10.5061/dryad.bnzs7h4j4](https://doi.org/10.5061/dryad.bnzs7h4j4)

## DATA & FILE OVERVIEW

File List:

* Sites Location (GPS and Area) information.csv
* Branch Data 2020-2021.csv
* Survey Data 2021_ES-LS.csv
* Environmental Data 2020-2021.csv

### DATA-SPECIFIC INFORMATION FOR: Sites Location (GPS and Area) information.csv

1\. Number of variables: 6

2\. Number of cases/rows: 20

3\. Variable List:

* SiteID: All the Forest and Plantation sites were utilized to collect the data, exc...