Anoplophora glabripennis in NE Italy: Faccoli M., Battisti A., Vettorazzo M., Zampini M., Zanini G., Coppe M.

Presentazione sul tema: "Anoplophora glabripennis in NE Italy: Faccoli M., Battisti A., Vettorazzo M., Zampini M., Zanini G., Coppe M."— Transcript della presentazione:

1 Anoplophora glabripennis in NE Italy: Faccoli M., Battisti A., Vettorazzo M., Zampini M., Zanini G., Coppe M.

2 Adulti caratterizzati da: lunghe antenne colore nero con riflessi bluastri elitre con numerose macchie bianche grandi dimensioni (4 cm) agricolturaitalianaonline

3 Il ciclo di sviluppo di Anoplophora in Italia

4 Nelle gallerie larvali spesso si trova “rosura”

5 Le Anoplophora sono di origine cinese e coreana, introdotte accidentalmente in alcune città europee, americane e canadesi.

6 A.glabripennis : imballaggi con legno di latifoglie, fresco e non trattato (pallets)

7 L’AMBIENTE DI VITA Alberi in ambiente urbano (viali, giardini, parchi, vivai, piante isolate, cespugli, filari, …) Saltuariamente ai margini dei boschi Finora mai segnalate entro i boschi Danni aspecifici, generici, primaverili. Morte della pianta in 3-5 anni.

8 Molecular analyses indicates similarity with haplotypes of Austrian and American (NY) populations, and differences with the ALB collected in Milan in 2007 In June 2009 many adults of Anoplophora glabripennis (ALB) were found in Cornuda, NE Italy

9 The eradication plan 1)Checking of all tree species potential ALB hosts: in the infestation area in a buffer zone of 2 km around each infested tree The eradication plan is based on 5 main points: Checking performed twice a year (Spring and Summer) by operators of the NPPO. Large trees: checked by tree-climbers of the Regional Forest Service

10 The monitoring in Cornuda Infestation area Buffer zone 2 Km

11 In green healthy trees and in red infested trees 2) Inventory of all tree species potential ALB hosts (geographic position, species, size, ownership)

12 3) Cut and chip of all (but only) infested trees by tree-climbers of the Forest Service. Chipping devices

13 4) Tree replacement (for free) with non-host species (conifers, oaks, linden, chestnut …).

14 5) Public information Information posters distributed in the infestation area and in the neighboring cities

15 RESULTS: infestation data from June 2009 to May 2011 Summer 2009 Spring 2010Summer 2010 Spring 2011 0 50 100 150 200 250 300 350 400 N of infested trees Number of infested trees (updated May 2011)

16 Emergence hole in 2008 2008 scarring tissue We dated 312 emergence holes from about 100 trees felled in summer 2009 Temporal trend of the infestation Annual rings 2008 2007 2005 2009 2006

17 N of emergence holes Early season 2006 Early season 2007 Early season 2008 Early season 2009 Late season 2006 Late season 2007 Late season 2008 Late season 2009 y = 0.001exp (1.192x) Late season 2005 0 50 100 150 200 250 1 64 24 2 219 2 Temporal trend of the infestation: The oldest hole dates Summer 2005!

18 The infestation begun at least in 2004 The eradication is giving positive outcomes: containment of the ALB expansion reduction of the number of infested trees The general eradication costs are decreasing (lower costs for cutting and chipping) Conclusions

19 Future needs monitoring of the whole infestation and buffer area monitoring outside the infestation area in high-risk sites: forests, main roads, natural areas, industrial stores with WPM, … testing new and quick detection methods (dogs, sound and vibration record, photo-interpretation…) investigate about limiting factors (natural enemies, host suitability, weather conditions,...)