Formerly the Vermont Monitoring Cooperative

Formerly the Vermont Monitoring Cooperative

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Project: Forest Pest Monitoring: Pear Thrips Monitoring

Dataset: Pear Thrips Proctor Maple Research Center and Stevensville Brook

Main page image for Pear Thrips Proctor Maple Research Center and Stevensville Brook

Parent Project

Forest Pest Monitoring: Pear Thrips Monitoring

Tags

Status

Completed

Data Availability

Available for download

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Data License

Pear Thrips Proctor Maple Research Center and Stevensville Brook is licensed under a Creative Commons CC BY-NC-SA - Attribution, Non-commercial, Share alike 4.0 International License.
Based on a work at https://vmc.w3.uvm.edu/vmcdevel/data/archive/project/forest-pest-monitoring-pear-thrips-monitoring/dataset/pear-thrips-proctor-maple-research-center/metadata

Project Lead / Principal Investigator

Trish Hanson

Affiliation:: Vermont Department of Forests, Parks and Recreation, Vermont Agency of Natural Resources
Role:: Project Lead/Principal Investigator
Start date:: 1991-01-01
Contact Information:: E-mail: trish.hanson@vermont.gov
Work phone: (802) 241-3606

Details and Metadata

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Dataset Fields
Methods
Sampling Equipment
Site Characteristics

Methods

The methods followed in the creation of the dataset, including description of field, laboratory and processing steps, and quality control procedures

Current Methods

Soil population monitoring
Started: 1989-05-01
Method 2. Soil populations are monitored using fall soil samples with forced emergence to estimate relative populations. Two bulb-planter soil samples are collected in the fall from 2 and 4 m from each of 5 selected sugar maple trees. Injury to foliage is recorded on associated trees.

Past Methods (No longer in use)

Adult population monitoring
Started: 1991-04-01
Ended: 1991-06-13
Method 1. Adult population levels are monitored weekly using 4 yellow sticky traps located at 3 feet above ground during flight period (April - June). Damage to sugar maple foliage is assessed using 8 trees.

Dataset Fields

Detailed documentation of the fields comprising the dataset, including the type of measurement, units where applicable, and any controlled vocabularies or code lists present in the data

Field Name Caption Description Additional Information

ID

ID

Automated ID number

Measurement type: Ordinal

Location

Location

Location of data collection

Measurement type: Nominal

Elevation

Elevation

Elevation of study site

Measurement type: Ratio
Unit: unavailable
Precision: 100

SampleDate

Sample Date

Sample date

Measurement type: DateTime
Date/Time Format: other

EmergenceYear

Emergence Year

Emergence Year

Measurement type: DateTime
Date/Time Format:

Totalthrips_soilpreviousfall

Total Thrips

Grand total number of thrips (from soil previous fall)

Measurement type: Ratio
Unit: unavailable
Precision: 1

Averagethrips

Average Thrips per Soil Sample

Average thrips pers soil sample (grand total # of thrips divided by 10)

Measurement type: Ratio
Unit: unavailable
Precision: 1

Numberofsamples

Number of Samples

Number of samples taken at the site

Measurement type: Ratio
Unit: unavailable
Precision: 1

Emergencefromstickytraps

Emergence from Sticky Traps

Number of emergences from sticky traps

Measurement type: Ratio
Unit: unavailable
Precision: 1

CountySoilAverage

County Soil Average

Average numer of thrips for county soil

Measurement type: Ratio
Unit: unavailable
Precision: 1

NorthernStateAverage

Northern State Average

Average number of thrips for the northen state

Measurement type: Ratio
Unit: unavailable
Precision: 10

StandDamageRating

Stand Damage Rating

Stand damage rating

Measurement type: Nominal
Stand Damage Rating
+ show

Appears in data as	Meaning of code
None (0)	no pear thrips damage detectable
Light (1)	Most leaves mottled with yellow spots, some slightly stunted or puckered. Leaf are reduced by 1-30%
Moderate (2)	Most leaves stunted, deformed and browned at the leaf edges. Some leaves may be tattered. Leaf area reduced by 31-60%
Heavy (3)	Most leaves tattered and severely stunted. Some buds may be killed. Leaf area is reduced by 61-80%
Severe (4)	Near or complete defoliation. Leaf area reduced by 81-100%

StandRatingComments

Stand Rating Comments

Stand rating comments

Measurement type: Nominal

Sampling Equipment

Equipment and software used to collect data, including how that equipment was used.

Current Equipment

Sticky traps, bulb planter
Started: 1989-05-01
Yellow sticky traps. Bulb planter.

Site Characteristics

The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection

Site Description
West slope of Mt. Mansfield, in sugar maple stand at Proctor Maple Research Center, and at 3 elevations in the Stevensville Brook headwaters (1500, 2000, and 2500 feet) as part of the Forest Management Study.