Table 4.
Frequency of association of the blue stain fungi Ophiostoma clavatum and O. brunneo-ciliatum with Ips acuminatus individuals collected in the Southern Alps, Italy (n = 110)
| Site no. | Site locationa (geographic coordinates; altitude above sea level) | Outbreak | Tree | No. of I. acuminatus individuals associated with indicated fungus (no. positives/10 tested samplesb) |
|
|---|---|---|---|---|---|
| O. clavatum | O. brunneo-ciliatum | ||||
| 1 | Brusson, Aosta (45°45′N, 7°45′E; 1,769 m) | No | A | 3 | 0 |
| 2 | Val Camonica, Brescia (46°10′N, 10°22′E; 1,183 m) | No | A | 7 | 0 |
| B | 7 | 0 | |||
| 3 | Valtellina, Sondrio (46°29′N, 10°19′E; 1,644 m) | Yes | A | 3 | 0 |
| B | 4 | 0 | |||
| 4 | Val Venosta, Bolzano (46°38′N, 10°51′E; 1,341 m) | No | A | 5 | 0 |
| B | 6 | 0 | |||
| 5 | Cortina d'Ampezzo, Belluno (46°29′N, 12°10′E; 1,124 m) | Yes | A | 3 | 0 |
| B | 5 | 0 | |||
| 6 | Val Dogna, Udine (46°27′N, 13°22′E; 980 m) | No | A | 8 | 0 |
| B | 8 | 0 | |||
a
See Fig. 1 for site geographic location.
b
Ophiostoma clavatum and O. brunneo-ciliatum were tested on the same samples.