Charles H. Bronson, Commissioner    -    James R. Karels, Director
 

 
Forestry Home> Forest Health>Southern Pine Beetle> 2008 SPB Forecast

2008 Southern Pine Beetle Forecast

Table 1. 2008 Trapping Survey:
Results, Trends, and Predictions

County

No. of traps

No. of.spots 2007

2008 Predictions

# of SPB/trap/day

%SPBb

Population Trenda

Activity Levelc 

2007

2008
Trenda

2007

2008

Trenda
Alachua
3
6
<1
1.4
S
26
50
S
S
Low
Baker
1
0
0
<1
S
0
62
I
S
Low
Bradford
1
0
<1
<1
S
33
33
S
S
Low
Clay
1
0
<1
<1
S
62
44
S
S
Low
Columbia
3
6
<1
<1
S
33
3
S
S
Low
Duval
1
0
<1
3
S
64
63
S
S
Low
Gadsden
2
0
2
<1
S
65
45
S
S
Low
Hamilton
2
3
<1
<1
S
8
10
S
S
Low
Hernando
1
0
<1
0
S
33
0
D
S
Low
Holmes
1
0
0
<1
S
0
2
S
S
Low
Jackson
1
0
<1
1.6
S
5
26
S
S
Low
Jefferson
1
0
<1
<1
S
50
50
S
S
Low
Lake
1
3
<1
0
S
50
0
D
S
Low
Leon
1
0
0
0
S
0
0
S
S
Low
Levy
1
0
0
0
S
0
0
S
S
Low
Madison
1
0
0
1.1
S
0
21
S
S
Low
Marion
3
21
<1
<1
S
44
52
S
S
Low
Nassau
2
0
<1
<1
S
100
75
S
S
Low
Okaloosa
2
0
9
<1
D
22
6
S
S
Low
Orange
1
0
<1
0
S
75
0
D
S
Low
Putnam
1
0
<1
<1
S
33
27
S
S
Low
Seminole
1
1
<1
0
S
0
62
I
S
Low
St. Johns
1
0
0
0
S
0
0
S
S
Low
Suwannee
2
0
<1
<1
S
65
59
S
S
Low
Walton
1
1
0
0
S
0
0
S
S
Low
Washington
1
0
<1
<1
S
19
0
S
S
Low
STATE TOTAL
37
46*
1
<1
S
25
27
S
S
Low


a D=Declining, S=Static, I=Increasing.  Annual changes of <3 units or <30% were considered 'Static'.

b %SPB is the ratio of SPBs to the combined clerid-plus-SPB (predator + prey) population, expressed as a percent.

c Activity level prediction based on model developed by Ron Billings , Texas Forest Service.

* Total reflects spots in counties where trapping was not implemented.
Division of Forestry Shield


Florida Department of Agriculture and Consumer Services