Pests and Diseases in Croatian Forests Forest Research Institute JastrebarskoCroatia

Department for Forest Protection and Hunting Department for Forest Protection and Hunting Forest Research Institute – center for monitoring and diagnosis of forest pests and diseases since Forest Research Institute – center for monitoring and diagnosis of forest pests and diseases since New Law on plant health (2006) – more obligations for FRI – quarantine pests and nurseries New Law on plant health (2006) – more obligations for FRI – quarantine pests and nurseries

Field methods Gypsy moth – transects (egg masses) Gypsy moth – transects (egg masses) Winter moths – glue rings Winter moths – glue rings Pine processionary moth – egg masses Pine processionary moth – egg masses Early defoliators – winter oak branches Early defoliators – winter oak branches Pheromone traps Pheromone traps Oak powdery mildew – estimate of infestation Oak powdery mildew – estimate of infestation

Laboratory methods Winter oak branches – counting of larvae Winter oak branches – counting of larvae Gypsy moth and pine processionary moth egg parasitoids Gypsy moth and pine processionary moth egg parasitoids

Oak powdery mildew (Microsphaera alphitoides)

Other plant diseases Sweet chestnut cancer present in all sweet chestnut forests Sweet chestnut cancer present in all sweet chestnut forests Fungal diseases of acorns Fungal diseases of acorns

Gypsy moth (Lymantria dispar)

Gypsy moth

Winter moths (Geometridae)

Pine processionary moth (Thaumatopoea pytiocampa)

Tortrix viridana

Silver fir bark beetles

Spruce bark beetles

Pine bark beetles

Other biotic damages wild game wild game rodents rodents weeds weeds

Abiotic damages frost frost drought drought windthrow, ice-break windthrow, ice-break

Pests and diseases