Table 1.
Antagonistic activities of selected M. melolontha midgut isolates against five entomopathogenic bacteria (EPB) strains shown by cross-streak tests.
| Strain ID * | Size of Inhibition Zones (mm) Left Inhibition Zone|Right Inhibition Zone |
||||
|---|---|---|---|---|---|
| P. temperata | X. kozodoii | X. bovienii | X. nematophila | X. budapestensis | |
| MT1 L2 01 | 0|0 | 12|13 | 20|18 | no gr. **| no gr. | no gr.|no gr. |
| MT1 L2 02 | 1|1 | 1|1 | no gr.|no gr. | no gr.|no gr. | 7|4 |
| MT3 L2 02 | 2|4 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MT3 L2 05 | 12|7 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MT3 L2 06 | 6|6 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MT3 L2 08 | 10|12 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MT3 L2 10 | 12|11 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MT3 L2 13 | 7|5 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MT4 L2 11 | 0|0 | 0|0 | 30|22 | no gr.|24 | 18|no gr. |
| MTA1 L2 01 | 1|1 | no gr.|no gr. | no gr.|12 | 6|6 | 30|20 |
| MTA3 L2 13 | 5|5 | 25|25 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MTA5 L3 10 | 3|5 | 7|5 | no gr.|no gr. | no gr.|no gr. | 20|25 |
| MMB2 L3 03 | 0|0 | 0|1 | 11|12 | 4|0 | 3|3 |
| MMB2 L3 04 | 0|0 | 0|0 | 7|6 | 0|0 | 1| 0 |
| MMB2 L3 07 | 0|0 | 0|0 | 12|12 | 9|10 | 10|9 |
| MMB4 L3 10 | 0|0 | 0|0 | 11|12 | 1|0 | 0|0 |
| MTB1 L3 08 | 0|0 | 15|14 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MTB1 L3 09 | 0|0 | 15|20 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MTB1 L3 12 | 0|0 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MTB5 L3 11 | 0|0 | 7|10 | no gr.|no gr. | no gr.|no gr. | 17|22 |
| MMC3 L3 03 | 0|0 | 11|12 | 14|16 | 14|13 | 12|13 |
| MMC3 L3 04 | 0|0 | 11|13 | 15|17 | 15|17 | 15|14 |
| MMC3 L3 07 | 0|0 | 13|14 | 16|18 | 17|19 | 17|17 |
| MMC3 L3 12 | 0|0 | 12|14 | 15|17 | 15|16 | 15|14 |
| MTC1 L3 03 | 0|0 | 10|10 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MTS3 L3 15 | 8|7 | 25|25 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MMH3 L2 04 | 2|2 | 3|2 | 17|18 | 17|16 | 13|14 |
| MMH3 L2 05 | 2|1 | 3|2 | 14|16 | 12|15 | 12|10 |
| MMH3 L2 06 | 2|1 | 4|3 | 16|17 | 16|15 | 11|13 |
| MMH4 L2 06 | 1|1 | 2|3 | 17|15 | 10|13 | 9 |12 |
| MMH4 L2 07 | 1|1 | 2|2 | 14|13 | 12|10 | 12|11 |
| MMH5 L2 04 | 0|1 | 2|3 | 2|3 | 1|1 | 7|5 |
| MMH5 L2 08 | 0|0 | 0|0 | 4|4 | 5|5 | 3|3 |
| MTH3 L2 08 | 0|0 | 16|14 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MTH3 L2 09 | 0|0 | 10|9 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MTH3 L2 10 | 0|0 | 10|10 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MTH3 L2 14 | 0|0 | 14|15 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
| MTH3 L2 15 | 0|0 | 10|10 | no gr.|no gr. | no gr.|no gr. | no gr.|no gr. |
* Strain ID provides information about the conditions of the isolation and the most important data on the M. melolontha larva used for isolation thereof. The second letter in strain ID: M—isolation in microaerobic conditions; T—isolation in aerobic conditions. The third letter in strain ID: information about the initial exposure of the M. melolontha larva to: A—S. arenarium; B—S. bicornutum; C—S. carpocapsae; S—S. silvaticum; H—H. megidis. L2 or L3: developmental stage of the M. melolontha larva. ** no gr.—no growth. Complete inhibition of bacterial strain growth.