Forest Pest Monitoring: Pear Thrips Monitoring: Pear Thrips Proctor Maple Research Center and Stevensville Brook
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► Metadata Provider
- Forest Ecosystem Monitoring Cooperative
- Address:
705 Spear Street
South Burlington, Vermont 05403
United States of America
Phone: (802) 391-4135
Email: femc@uvm.edu
Website: www.uvm.edu/femc
► Abstract
Determine population trends, tree susceptibility based on emergence-tree phenology relationship, and resulting tree damage. Monitoring trends in major insect pest populations, and documenting the occurence of damage to forests.
► People
- Tom Simmons: Content Provider
- Sandra Wilmot: Content Provider
- Barbara Schultz: Content Provider
- Trish Hanson: Principal Investigator
- Sean Lawson: Content Provider
► Geographic Coverage
- Coordinates
- -72.864765, 44.504423
- -72.826364, 44.504423
- -72.826364, 44.525646
- -72.864765, 44.525646
- -72.864765, 44.504423
► Data Table
- Title: Pear Thrips Proctor Maple Research Center and Stevensville Brook
- Start Date: 1989-05-01
- End Date: 2004-12-31
- Description: Total and average pear thrips counts
- Purpose: Determine population trends, tree susceptibility based on emergence-tree phenology relationship, and resulting tree damage
- Condensed Title: Z0022_PearThripsPMRC
- Object Name: VMC.22.20
- Data Type: mySQL
- Citation: Trish Hanson. 2004. Pear Thrips Proctor Maple Research Center.VT Department of Forests, Parks and Recreation. FEMC. Can be found at: https://www.uvm.edu/femc/data/archive/project/forest-pest-monitoring-pear-thrips-monitoring/dataset/pear-thrips-proctor-maple-research-center
- Online Distribution: https://vmc.w3.uvm.edu/vmcdevel/data/archive/project/forest-pest-monitoring-pear-thrips-monitoring/dataset/pear-thrips-proctor-maple-research-center
► Attribute List
- Attribute Name: ID
- Label: ID
- Description: Automated ID number
- Storage Type: int
- Measurment Type: ordinal
- Attribute Name: Location
- Label: Location
- Description: Location of data collection
- Storage Type: text
- Measurment Type: nominal
- Attribute Name: Elevation
- Label: Elevation
- Description: Elevation of study site
- Storage Type: int
- Measurment Type: ratio
- Standard Unit: foot
- Precision: 100
- Unit: foot
- Number Type: real
- Attribute Name: SampleDate
- Label: Sample Date
- Description: Sample date
- Storage Type: datetime
- Measurment Type: datetime
- String Format: other
- Attribute Name: EmergenceYear
- Label: Emergence Year
- Description: Emergence Year
- Storage Type: datetime
- Measurment Type: datetime
- Attribute Name: Totalthrips_soilpreviousfall
- Label: Total Thrips
- Description: Grand total number of thrips (from soil previous fall)
- Storage Type: int
- Measurment Type: ratio
- Standard Unit: number
- Precision: 1
- Unit: number
- Number Type: integer
- Attribute Name: Averagethrips
- Label: Average Thrips per Soil Sample
- Description: Average thrips pers soil sample (grand total # of thrips divided by 10)
- Storage Type: int
- Measurment Type: ratio
- Standard Unit: number
- Precision: 1
- Unit: number
- Number Type: integer
- Attribute Name: Numberofsamples
- Label: Number of Samples
- Description: Number of samples taken at the site
- Storage Type: int
- Measurment Type: ratio
- Standard Unit: number
- Precision: 1
- Unit: number
- Number Type: integer
- Attribute Name: Emergencefromstickytraps
- Label: Emergence from Sticky Traps
- Description: Number of emergences from sticky traps
- Storage Type: int
- Measurment Type: ratio
- Standard Unit: number
- Precision: 1
- Unit: number
- Number Type: integer
- Attribute Name: CountySoilAverage
- Label: County Soil Average
- Description: Average numer of thrips for county soil
- Storage Type: int
- Measurment Type: ratio
- Standard Unit: number
- Precision: 1
- Unit: number
- Number Type: integer
- Attribute Name: NorthernStateAverage
- Label: Northern State Average
- Description: Average number of thrips for the northen state
- Storage Type: int
- Measurment Type: ratio
- Standard Unit: number
- Precision: 10
- Unit: number
- Number Type: real
- Attribute Name: StandDamageRating
- Label: Stand Damage Rating
- Description: Stand damage rating
- Storage Type: text
- Measurment Type: nominal
- Custom List: Stand Damage Rating
- Code: None (0)
- Definition: no pear thrips damage detectable
- Code: Light (1)
- Definition: Most leaves mottled with yellow spots, some slightly stunted or puckered. Leaf are reduced by 1-30%
- Code: Moderate (2)
- Definition: Most leaves stunted, deformed and browned at the leaf edges. Some leaves may be tattered. Leaf area reduced by 31-60%
- Code: Heavy (3)
- Definition: Most leaves tattered and severely stunted. Some buds may be killed. Leaf area is reduced by 61-80%
- Code: Severe (4)
- Definition: Near or complete defoliation. Leaf area reduced by 81-100%
- Attribute Name: StandRatingComments
- Label: Stand Rating Comments
- Description: Stand rating comments
- Storage Type: text
- Measurment Type: nominal
► Methods
- Current Methods
- Soil population monitoring
- Started: 1989-05-01
- Method Description: 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.
- Started: 1989-05-01
- Past Methods (no longer in use)
- Adult population monitoring
- Started: 1991-04-01
Ended: 1991-06-13 - Method Description: 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.
- Started: 1991-04-01
► Sampling Equipment
- Current Equipment
- Sticky traps, bulb planter
- Started: 1989-05-01
- Sampling Description: Yellow sticky traps. Bulb planter.
► Site Characteristics
- 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.