Pests and Diseases in Pests and Diseases in Croatian ForestsCroatian Forests

Forest Research InstituteForest Research Institute

JastrebarskoJastrebarsko

CroatiaCroatia

Forest Research InstituteForest Research Institute

Department for Forest Protection and HuntingDepartment for Forest Protection and Hunting

Forest Research Institute – center for monitoring Forest Research Institute – center for monitoring and diagnosis of forest pests and diseases since and diagnosis of forest pests and diseases since 1980.1980.

New Law on plant health (2006) – more New Law on plant health (2006) – more obligations for FRI – quarantine pests and obligations for FRI – quarantine pests and nurseriesnurseries

Field methodsField methods

Gypsy moth – transects (egg masses)Gypsy moth – transects (egg masses) Winter moths – glue ringsWinter moths – glue rings Pine processionary moth – egg massesPine processionary moth – egg masses Early defoliators – winter oak branchesEarly defoliators – winter oak branches Pheromone trapsPheromone traps Oak powdery mildew – estimate of Oak powdery mildew – estimate of

infestationinfestation

Laboratory methodsLaboratory methods

Winter oak branches – counting of larvaeWinter oak branches – counting of larvae

Gypsy moth and pine processionary moth Gypsy moth and pine processionary moth egg parasitoidsegg parasitoids

Oak powdery mildewOak powdery mildew((Microsphaera alphitoidesMicrosphaera alphitoides))

Hrastova pepelnica

0

5000

10000

15000

20000

25000

2001. 2002. 2003. 2004. 2005. 2006. 2007.

Površina (ha)

napadnuto

tretirano

Oak powdery mildew(Microsphaera alphitoides)

#

#

#

#

#

#

#

#

##

#

#

#

#

#

VINKOVCI

OSIJEKNAŠICE

POŽEGANOVA GRADIŠKA

BJELOVAR

KOPRIVNICA

ZAGREB

SISAKKARLOVAC

OGULIN

DELNICE

SENJ

BUZET

GOSPIÆ

#

0-20 %20-40 %40-60 %60-80 %80-100 %

Pepelnica 2007. - intenzitet napada

Other plant diseasesOther plant diseases

Sweet chestnut cancer present in all sweet Sweet chestnut cancer present in all sweet chestnut forestschestnut forests

Fungal diseases of acornsFungal diseases of acorns

Gypsy mothGypsy moth((Lymantria disparLymantria dispar))

Gubar (kontinentalni dio)

0

5000

10000

15000

20000

25000

30000

35000

2003. 2004. 2005. 2006. 2007.

Površina (ha)

napadnuto

tretirano

Gypsy mothGypsy moth

Gubar (krš)

0

1000

2000

3000

4000

5000

6000

2003. 2004. 2005. 2006. 2007.

Površina (ha)

napadnuto

Winter moths (Geometridae)Winter moths (Geometridae)

Mrazovci

0

2000

4000

6000

8000

10000

12000

14000

16000

18000

20000

2002. 2003. 2004. 2005. 2006. 2007.

Površina (ha)

napadnuto

tretirano

Pine processionary moth Pine processionary moth (Thaumatopoea pytiocampa)(Thaumatopoea pytiocampa)

Borov četnjak

0

500

1000

1500

2000

2500

3000

3500

4000

2002. 2003. 2004. 2005. 2006. 2007.

Površina (ha)

napadnuto

tretirano

Tortrix viridanaTortrix viridana

Hrastov savijač

0

1000

2000

3000

4000

5000

6000

7000

2002. 2003. 2004. 2005. 2006.

Površina (ha)

napadnuto

tretirano

Silver fir bark beetlesSilver fir bark beetles

Jelovi potkornjaci

0

50000

100000

150000

200000

250000

300000

350000

2001. 2002. 2003. 2004. 2005. 2006. 2007.

m3

Spruce bark beetlesSpruce bark beetles

Smrekovi potkornjaci

0

10000

20000

30000

40000

50000

60000

2001. 2002. 2003. 2004. 2005. 2006. 2007.

m3

Pine bark beetlesPine bark beetles

Borovi potkornjaci

0

200

400

600

800

1000

1200

1400

1600

1800

2000

2001. 2002. 2003. 2004. 2005. 2006. 2007.

m3

Other biotic damagesOther biotic damages

wild gamewild game

rodentsrodents

weedsweeds

Abiotic damagesAbiotic damages

frostfrost

droughtdrought

windthrow, ice-breakwindthrow, ice-break

Pests and diseases 2003-07.Pests and diseases 2003-07.

0

5000

10000

15000

20000

25000

30000

35000

40000

45000

mil

de

w

gy

ps

y m

oth

ge

om

etr

ida

e

t. v

irid

an

a

p.

p.

mo

th

rod

en

ts

we

ed

s

fro

st

Area (ha) 2003

2004

2005

2006

2007