Potential Damage from Asian Longhorned Beetle...New York 13210-2778 For more information, contact Dave Nowak dnowak @fs.fed.us Number of Trees On Timberland Potentially Infested with

http://www.nrs.fs.fed.us/ 1

Asian longhorned beetle Photo by Kenneth R. Law, APHIS

____________________________ Asian longhorned beetle (Anoplophora glabripennis), a wood borer native to Asia, was first found in New York City in 1996. In an attempt to eradicate these beetles, thousands of infested trees were removed. If this beetle escapes into surrounding forest stands, the potential damage is significant. The following tables and maps represent the potential damage to forest stands in the United States should this beetle escape and invade these stands in the U.S. 28.5% (71 billion trees) of the trees on timberland are at risk to mortality due to the Asian longhorned beetle. Based on a compensation value formula of the Council of Tree and Landscape Appraisers, the potential value loss is greater than $2 trillion. (For more information on the Asian longhorned beetle, its spread and eradication efforts, please visit USDA Forest Service Northern Research Station’s ALB web page at http://www.nrs.fs.fed.us/disturbance/invasive_species/alb/.) If the Asian longhorned beetle escaped and infested the all urban areas of the lower 48 states, the estimated national impact would be a loss of 34.9% of total canopy cover, 30.3% tree mortality (1.2 billion trees) and a value

Potential Damage from Asian Longhorned Beetle

“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778

For more information,

contact Dave Nowak

dnowak @fs.fed.us

Principal Investigators: David Nowak, Daniel Crane, Jack Stevens, and Jeffrey Walton* (USDA Forest Service, Northern Research Station) *Currently at Paul Smith's College, Paul Smiths, New York Research Collaborators: Doug Allen and Latif G. Kaya (SUNY College of Environmental Science and Forestry); Linda Ordiway (USDA Forest Service Northern Research Station)

loss of $669 billion. (Nowak et al 2001) Information on potential damage to urban and non-urban forests have been compiled based on insect and disease host preferences and field data from urban areas and the USDA-Forest Service Forest Inventory and Analysis (FIA—http://fia.fs.fed.us/) data. For non-urban forests potential risk data are presented for four types of tree hosts: 1. Known hosts - known host in China or

verified completion of life cycle (exit holes) on host in United States.

2. Genera hosts - genera that have been attacked (oviposition) in the field, but complete development in a tree has not been confirmed.

3. Immune hosts - conifer species (no known conifer hosts)

4. Unknown - hardwood genera with no host data.

These data are based on FIA (trees >= 1 inch in diameter at breast height (4.5 ft)(DBH)) data extracted in 2002 in conjunction with host preference data. Data are given by county and state for: a) number of potential trees affected, b) percent of tree population, c) percent of basal area, and d) compensatory value of potential affected trees. For more information on general methods, see: Nowak, D.J., J.E. Pasek, R, Sequeira, D.E. Crane. and V.C. Mastro, 2001. Potential effect of Anoplophora glabripennis (Coleoptera: Cerambycidae) on urban trees in the United States. Journal of Economic Entomology. 94(1): 116-122. Available online at http://nrs.fs.fed.us/pubs/1983 Within the value formula, location factor was set


Map of Percent of Trees on Timberland Potentially Infested by Asian Longhorned Beetle. [Known Host] Map of Percent of Trees on Timberland Potentially Infested by Asian Longhorned Beetle. [Genera Host]


“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us


Map of Percent of Trees on Timberland Potentially Immune to Asian Longhorned Beetle. Map of Percent of Trees on Timberland Potentially Infested by Asian Longhorned Beetle. [Unknown Host]


“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us



“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us

State Known Host

Genera Host Immune Unknown

Host

AK ND ND ND ND

AL 13.2 17.6 26.8 42.4

AR 17.4 20.7 23.2 38.8

AZ* 5.8 24.3 69.9 0

CA* 2.7 15.1 63.3 18.9

CO* 26.3 12.4 61.1 0.2

CT 41.8 27.4 13.2 17.7

DC ND ND ND ND

DE 25.8 12.8 12.7 48.7

FL* 8.5 21.4 35.9 34.2

GA 13.2 17.5 30.3 39

HI ND ND ND ND

IA* 46.1 11.7 3.1 39.1

ID* 7.2 0.7 92 0.1

IL* 45.6 13 2.1 39.3

IN* 44.8 9.1 5.1 41

KS* 38.8 13.6 4.6 42.9

KY 29 15.5 9.3 46.2

LA* 18.3 14 28.4 39.4

MA 39.5 23.1 24.5 12.9

MD 27.8 14.5 13.4 44.3

ME 31.5 12.4 49.7 6.3

MI 52.1 8.3 32.5 7.1

MN* 47.1 10.7 37.4 4.9

MO 18.4 38.4 7.5 35.7

MS 15.6 16.2 24.5 43.7

MT* 2.4 0.4 97.3 0

Percent of Trees On Timberland Potentially Infested with Asian Longhorned Beetle

ND = No data available. * = Incomplete data for state. 2/20/2003

State Known Host


Host

NC 20.8 14.4 20 44.8

ND* 81.5 14.4 1.6 2.6

NE* 40.5 8.2 29.2 22.1

NH 36.7 17.6 35.7 10

NJ 25.4 23.4 28.2 23.1

NM* 8.3 34.4 57.3 0

NV* 39.2 0 57.8 3

NY 53 8.2 17.5 21.2

OH 49.2 10.7 3.1 36.9

OK* 16.7 38.2 19.2 26

OR* 7.5 2.3 81.5 8.7

PA 48.9 19 7.4 24.8

RI 40.5 34.5 15.9 9

SC 14.6 17.3 33.4 34.8

SD* 12.2 7.4 78.4 2

TN 26.5 14.8 13.6 45.1

TX* 13.4 19.5 29.5 37.6

UT 38.7 1.4 59.1 0.7

VA 20.2 18.3 16.7 44.8

VT 45.2 11.3 28.3 15.2

WA* 9.4 0.9 89 0.6

WI 55.3 11.6 22.6 10.4

WV 34.5 20.2 5 40.2

WY* 11.1 2.2 86.6 0.2

U.S. 24.8 14.6 34.4 26.2


Map of Number of Trees on Timberland Potentially Infested by Asian Longhorned Beetle. [Known Host] Map of Number of Trees on Timberland Potentially Infested by Asian Longhorned Beetle. [Genera Host]


“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us


Map of Number of Trees on Timberland Potentially Immune to Asian Longhorned Beetle. Map of Number of Trees on Timberland Potentially Infested by Asian Longhorned Beetle. [Unknown Host]


“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us


ND = No data available. = Incomplete data for state. 2/20/2003


“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us

Number of Trees On Timberland Potentially Infested with Asian Longhorned Beetle

State Known Host Genera Host Immune Unknown Host State Total

AK ND ND ND ND ND

AL 2,110,000,000 2,810,000,000 4,270,000,000 6,760,000,000 15,950,000,000

AR 2,120,000,000 2,520,000,000 2,830,000,000 4,740,000,000 12,210,000,000

AZ* 80,000,000 350,000,000 1,020,000,000 0 1,450,000,000

CA* 190,000,000 1,090,000,000 4,560,000,000 1,360,000,000 7,200,000,000

CO* 1,510,000,000 720,000,000 3,510,000,000 10,000,000 5,750,000,000

CT 340,000,000 220,000,000 110,000,000 140,000,000 810,000,000

DC ND ND ND ND ND

DE 70,000,000 30,000,000 30,000,000 130,000,000 260,000,000

FL* 650,000,000 1,640,000,000 2,750,000,000 2,620,000,000 7,660,000,000

GA 2,080,000,000 2,760,000,000 4,780,000,000 6,150,000,000 15,770,000,000

HI ND ND ND ND ND

IA* 380,000,000 100,000,000 30,000,000 330,000,000 840,000,000

ID* 500,000,000 40,000,000 6,300,000,000 10,000,000 6,850,000,000

IL* 1,090,000,000 310,000,000 50,000,000 940,000,000 2,390,000,000

IN* 1,080,000,000 220,000,000 120,000,000 990,000,000 2,410,000,000

KS* 240,000,000 80,000,000 30,000,000 260,000,000 610,000,000

KY 2,030,000,000 1,090,000,000 650,000,000 3,240,000,000 7,010,000,000

LA* 1,450,000,000 1,100,000,000 2,240,000,000 3,110,000,000 7,900,000,000

MA 610,000,000 350,000,000 380,000,000 200,000,000 1,540,000,000

MD 400,000,000 210,000,000 190,000,000 640,000,000 1,440,000,000

ME 5,180,000,000 2,030,000,000 8,160,000,000 1,040,000,000 16,410,000,000

MI 5,940,000,000 950,000,000 3,700,000,000 810,000,000 11,400,000,000

MN* 3,970,000,000 900,000,000 3,150,000,000 410,000,000 8,430,000,000

MO 1,360,000,000 2,830,000,000 550,000,000 2,630,000,000 7,370,000,000

MS 1,820,000,000 1,880,000,000 2,860,000,000 5,090,000,000 11,650,000,000

MT* 220,000,000 30,000,000 9,220,000,000 0 9,470,000,000




“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us

Number of Trees On Timberland Potentially Infested with Asian Longhorned Beetle (cont.)

State Known Host Genera Host Immune Unknown Host State Total

NC 2,910,000,000 2,020,000,000 2,800,000,000 6,280,000,000 14,010,000,000

ND* 150,000,000 30,000,000 0 0 180,000,000

NE* 120,000,000 30,000,000 90,000,000 70,000,000 310,000,000

NH 1,260,000,000 600,000,000 1,220,000,000 340,000,000 3,420,000,000

NJ 250,000,000 230,000,000 280,000,000 230,000,000 990,000,000

NM* 210,000,000 890,000,000 1,490,000,000 0 2,590,000,000

NV* 40,000,000 0 60,000,000 0 100,000,000

NY 5,160,000,000 800,000,000 1,710,000,000 2,070,000,000 9,740,000,000

OH 2,220,000,000 480,000,000 140,000,000 1,660,000,000 4,500,000,000

OK* 620,000,000 1,410,000,000 710,000,000 960,000,000 3,700,000,000

OR* 630,000,000 190,000,000 6,790,000,000 720,000,000 8,330,000,000

PA 4,170,000,000 1,620,000,000 630,000,000 2,110,000,000 8,530,000,000

RI 70,000,000 60,000,000 30,000,000 20,000,000 180,000,000

SC 1,270,000,000 1,510,000,000 2,910,000,000 3,030,000,000 8,720,000,000

SD* 70,000,000 40,000,000 440,000,000 10,000,000 560,000,000

TN 2,260,000,000 1,260,000,000 1,160,000,000 3,850,000,000 8,530,000,000

TX* 920,000,000 1,340,000,000 2,040,000,000 2,600,000,000 6,900,000,000

UT 850,000,000 30,000,000 1,300,000,000 20,000,000 2,200,000,000

VA 2,340,000,000 2,120,000,000 1,940,000,000 5,210,000,000 11,610,000,000

VT 1,410,000,000 350,000,000 880,000,000 470,000,000 3,110,000,000

WA* 620,000,000 60,000,000 5,860,000,000 40,000,000 6,580,000,000

WI 5,450,000,000 1,150,000,000 2,230,000,000 1,030,000,000 9,860,000,000

WV 2,270,000,000 1,330,000,000 330,000,000 2,640,000,000 6,570,000,000

WY* 270,000,000 50,000,000 2,090,000,000 0 2,410,000,000

Total 70,980,000,000 41,910,000,000 98,610,000,000 74,970,000,000 286,460,000,000


Map of Percent Basal Area on Timberland Potentially Infested by Asian Longhorned Beetle. [Known Host] Map of Percent Basal Area on Timberland Potentially Infested by Asian Longhorned Beetle. [Genera Host]


“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us


Map of Percent Basal Area on Timberland Potentially Immune to Asian Longhorned Beetle. Map of Percent Basal Area on Timberland Potentially Infested by Asian Longhorned Beetle. [Unknown Host]


“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us



“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us

Percent Basal Area of Trees On Timberland Potentially Infested with Asian Longhorned Beetle

ND = No data available. * = Incomplete data for state. 2/20/2003

State Known Host

Genera Host Immune

Un-known Host

AK ND ND ND ND

AL 7.8 22 38.9 31.3

AR 10 33.4 32.2 24.4

AZ* 3.8 10.6 85.6 0

CA* 1.4 11.4 77.4 9.8

CO* 22.6 2 75.3 0.1

CT 36 39.6 15.3 9.1

DC ND ND ND ND

DE 27.4 24.4 15.6 32.6

FL* 7.2 17.2 43.1 32.5

GA 8 20.2 41.7 30.1

HI ND ND ND ND

IA* 39.9 32.2 2.3 25.7

ID* 2.9 0.4 96.6 0.1

IL* 34.4 34.7 2.8 28.2

IN* 35.1 26.6 4.6 33.8

KS* 37.2 22.9 2.2 37.8

KY 20 34.1 8.7 37.2

LA* 12.7 17.9 39.9 29.5

MA 33.4 26.7 34.1 5.8

MD 23.2 27.6 16.3 32.9

ME 28.8 13 52.3 6

MI 48.2 14.1 31.4 6.4

MN* 44.4 17.9 32.8 4.9

MO 11.7 61.2 7.1 19.9

MS 9.8 23.7 34.4 32.1

MT* 1.9 0.2 97.9 0

State Known Host

Genera Host Immune

Un-known Host

NC 13.3 21.3 32.2 33.2

ND* 79 17 1.3 2.7

NE* 45.7 16.4 24.3 13.6

NH 31.7 21.9 39.4 7

NJ 24.7 32.2 25.1 18

NM* 8.3 7.7 84 0

NV* 19.5 0 79.2 1.3

NY 50.6 13.4 22.5 13.5

OH 43.7 23.1 3.8 29.4

OK* 13.5 45 23.2 18.3

OR* 6.8 1.4 87.7 4

PA 44.5 30.6 9.6 15.3

RI 30.2 45.5 18.9 5.5

SC 9.8 18 44 28.2

SD* 10.5 4.9 83.7 0.9

TN 18.1 33.6 15 33.3

TX* 8.2 25.8 42.9 23.1

UT 28.5 0.9 69.3 1.2

VA 12.8 33.7 22.6 30.9

VT 42.8 15.5 31.8 9.9

WA* 10.2 0.4 89 0.4

WI 46.6 21.7 23.8 7.9

WV 23.4 37.9 6 32.7

WY* 7.8 1.1 91 0.1

U.S. 18.8 18.4 46.1 16.7


Map of Compen-satory Value on Timberland Potentially Infested by Asian Longhorned Beetle. [Known Host] Map of Compen-satory Value on Timberland Potentially Infested by Asian Longhorned Beetle. [Genera Host]


“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us


Map of Compen-satory Value on Timberland Potentially Immune to Asian Longhorned Beetle. Map of Compen-satory Value on Timberland Potentially Infested by Asian Longhorned Beetle. [Unknown Host]


“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us




“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us

Compensatory Value ($) On Timberland Potentially Infested with Asian Longhorned Beetle

State Known Host


Host State Total

AK ND ND ND ND ND

AL 35,540,000,000 93,830,000,000 201,080,000,000 139,250,000,000 469,700,000,000

AR 33,950,000,000 126,560,000,000 108,490,000,000 89,210,000,000 358,210,000,000

AZ* 5,640,000,000 24,940,000,000 161,610,000,000 40,000,000 192,230,000,000

CA* 21,790,000,000 232,740,000,000 1,085,730,000,000 170,800,000,000 1,511,060,000,000

CO* 115,270,000,000 14,840,000,000 374,000,000,000 290,000,000 504,400,000,000

CT 20,940,000,000 19,030,000,000 7,800,000,000 5,790,000,000 53,560,000,000

DC ND ND ND ND ND

DE 3,100,000,000 2,810,000,000 1,510,000,000 4,290,000,000 11,710,000,000

FL* 14,840,000,000 33,530,000,000 81,900,000,000 64,480,000,000 194,750,000,000

GA 39,060,000,000 90,720,000,000 199,350,000,000 143,580,000,000 472,710,000,000

HI ND ND ND ND ND

IA* 8,460,000,000 12,210,000,000 650,000,000 6,820,000,000 28,140,000,000

ID* 21,450,000,000 3,360,000,000 646,410,000,000 510,000,000 671,730,000,000

IL* 15,580,000,000 24,570,000,000 1,400,000,000 15,580,000,000 57,130,000,000

IN* 55,690,000,000 47,950,000,000 6,280,000,000 54,310,000,000 164,230,000,000

KS* 9,250,000,000 8,500,000,000 740,000,000 12,290,000,000 30,780,000,000

KY 72,600,000,000 154,090,000,000 29,620,000,000 140,580,000,000 396,890,000,000

LA* 31,120,000,000 44,430,000,000 111,980,000,000 80,830,000,000 268,360,000,000

MA 35,350,000,000 25,550,000,000 29,440,000,000 7,110,000,000 97,450,000,000

MD 22,640,000,000 29,610,000,000 15,260,000,000 33,430,000,000 100,940,000,000

ME 174,880,000,000 77,920,000,000 294,590,000,000 39,840,000,000 587,230,000,000

MI 184,580,000,000 65,090,000,000 130,240,000,000 25,550,000,000 405,460,000,000

MN* 118,880,000,000 41,230,000,000 73,020,000,000 13,130,000,000 246,260,000,000

MO 27,490,000,000 189,430,000,000 19,390,000,000 48,560,000,000 284,870,000,000

MS 31,420,000,000 75,160,000,000 131,320,000,000 107,360,000,000 345,260,000,000

MT* 12,480,000,000 1,640,000,000 771,810,000,000 10,000,000 785,940,000,000




“Urban Forests,

Human Health,

and

Environmental

Quality ”

A research work

unit of the USDA

Forest Service

Northern

Research

Station

SUNY ESF,

1 Forestry

Drive,

5 Moon Library

Syracuse,

New York

13210-2778


contact Dave Nowak

dnowak @fs.fed.us

Compensatory Value ($) On Timberland Potentially Infested with Asian Longhorned Beetle

State Known Host


Host State Total

NC 68,800,000,000 91,080,000,000 141,470,000,000 153,630,000,000 454,980,000,000

ND* 8,730,000,000 2,710,000,000 200,000,000 340,000,000 11,980,000,000

NE* 5,110,000,000 3,180,000,000 3,340,000,000 2,120,000,000 13,750,000,000

NH 59,590,000,000 36,340,000,000 62,570,000,000 13,800,000,000 172,300,000,000

NJ 17,460,000,000 20,070,000,000 15,050,000,000 12,040,000,000 64,620,000,000

NM* 16,360,000,000 20,940,000,000 161,030,000,000 0 198,330,000,000

NV* 2,850,000,000 0 12,570,000,000 210,000,000 15,630,000,000

NY 250,180,000,000 60,850,000,000 101,140,000,000 72,980,000,000 485,150,000,000

OH 82,130,000,000 53,020,000,000 7,060,000,000 56,090,000,000 198,300,000,000

OK* 23,270,000,000 98,600,000,000 44,440,000,000 32,550,000,000 198,860,000,000

OR* 62,480,000,000 19,340,000,000 528,570,000,000 48,320,000,000 658,710,000,000

PA 183,440,000,000 128,190,000,000 37,850,000,000 70,860,000,000 420,340,000,000

RI 3,550,000,000 4,750,000,000 1,670,000,000 650,000,000 10,620,000,000

SC 29,630,000,000 52,740,000,000 133,410,000,000 82,330,000,000 298,110,000,000

SD* 3,320,000,000 2,630,000,000 35,900,000,000 410,000,000 42,260,000,000

TN 68,850,000,000 120,330,000,000 57,890,000,000 133,310,000,000 380,380,000,000

TX* 25,460,000,000 90,330,000,000 128,290,000,000 75,610,000,000 319,690,000,000

UT 58,130,000,000 2,280,000,000 131,880,000,000 2,130,000,000 194,420,000,000

VA 75,000,000,000 214,410,000,000 123,510,000,000 182,990,000,000 595,910,000,000

VT 73,280,000,000 22,890,000,000 49,070,000,000 18,550,000,000 163,790,000,000

WA* 69,360,000,000 4,560,000,000 429,000,000,000 3,480,000,000 506,400,000,000

WI 104,080,000,000 67,930,000,000 62,950,000,000 18,970,000,000 253,930,000,000

WV 102,610,000,000 180,010,000,000 24,460,000,000 147,650,000,000 454,730,000,000

WY* 17,090,000,000 3,030,000,000 193,170,000,000 180,000,000 213,470,000,000

Total 2,522,750,000,000 2,739,960,000,000 6,970,120,000,000 2,332,880,000,000 14,565,710,000,000 Percent

Total 17.3 18.8 47.9 16.0 100.0

Documents

Potential Damage from Asian Longhorned Beetle...New York 13210-2778 For more information, contact Dave Nowak dnowak @fs.fed.us Number of Trees On Timberland Potentially Infested with