|
Forest
Health Highlights - 1999
Florida
The Florida Division
of Forestry provides forest health protection assistance to state and
private land managers within the State. The State and the USDA Forest
Service Forest Health Protection unit fund this program cooperatively.
Florida Forest
Facts
Over 40% of Florida is forested (more than 14.6 million
acres).
Over 80% of forested acreage in Florida is privately owned.
The National Forests in Florida (1,029,500 acres) provide recreational
and wildlife benefits as well as timber products and jobs for thousands
of people.
The Florida Division of Forestry acquired a trend analysis of coastal
forest change from the Big Bend region of the state. Results revealed
measurable, but very small changes, indicative of a slow process likely
linked to the rising seas level.
Fusiform rust remains an ongoing problem on slash and loblolly pines
in Florida. Pitch canker, annosum root disease,
Phytopthora root rot of sand pines, and southern cone rust
are occasionally problematic in pine plantations and seed orchards.
Wildfires ravaged much of Florida in 1998 and to or lesser extent
in 1999. These fires resulted in secondary losses from opportunistic
responders such as wood borers, pine engravers, black
turpentine beetles and regeneration weevils. Ramifications could
continue to be felt for several years, as mortality of weakened trees
will continue.
Following record-setting losses due to southern pine beetle (SPB)
infestations in a 1997 and scant activity in 1998, notable and unprecedented
SPB problems surfaced again in 1999. A late developing outbreak in
Hernando County affecting predominantly residential and wildland/urban
interface areas in Brooksville continues to be active in 2000. These
infestations are new southern range records for SPB in Florida. Relatively
high levels of activity also occurred along the Suwannee River in Hamilton,
Madison, and Suwannee Counties.
The Florida Division of Forestry is becoming more involved with investigations
to develop integrated pest management strategies for exotic weeds.
They are currently cooperating on a research project with the USDA
Forest Service and University of Florida, targeting cogongrass in forested
areas.
For reasons more likely linked to the prolonged stretch of extreme weather,
numerous observations and reports of Kermes scale causing various
degrees of damage to ornamental and urban live oaks occurred in 1999.
Flagging of branch tips, dieback and even mortality were associated
with locally abundant scale populations ranging from Tallahassee to
Tampa. In one case, approximately $20,000 worth of nursery stock was
destroyed due to infestations and damage. Reasonably successful control
was achieved with multiple applications of insecticidal soap during
periods when crawlers were present.
The Florida
Division of Forestry and
USDA Forest Service
In spite of the
relatively good health of Florida‘s forests, a variety of insects and
diseases (both native and introduced), and human-caused impacts such
as changes in land use patterns, continue to threaten the State’s resources.
To deal with this constantly changing mix of challenges, the Division
of Forestry and the Forest Health Protection unit of the USDA Forest
Service cooperate to prevent, detect, suppress and manage this multitude
of threats. The partnership between the two agencies has worked for
three decades to maintain and improve the health of Florida‘s forests.
Forest Health
Protection contributions (dollars) to Florida Division of Forestry Cooperative
Forest Health program, cooperative pest suppression projects, and National
Forests in Florida pest suppression projects, 1997-2000.
| |
1997
|
1998
|
1999
|
2000
|
|
Cooperative
Forest Health Program
|
63,525
|
63,525
|
69,000
|
69,000
|
| |
|
|
|
|
|
Cooperative
suppression
|
|
|
|
|
|
southern pine beetle
|
0
|
0
|
0
|
25,000
|
| |
|
|
|
|
|
NFs
in Florida -
|
|
|
|
|
|
southern pine beetle
|
67,000
|
30,000
|
10,000
|
0
|
For additional
information, contact:
|