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Parasitism rate (the number of chambers with living parasitoids (larvae, pupae, adults, emerged insects) divided by the total number of chambers, excluding chambers damaged by rot and without an identifiable host) in the chestnut fields during the monitoring period. n = total number of chambers.
| Year | ||||
|---|---|---|---|---|
| Chestnut Field | 2017 | 2018 | ||
| n | n | |||
| A | 0.18 | 1435 | 0.57 | 1031 |
| B | 0.33 | 1348 | 0.59 | 1048 |
| C | 0.40 | 1001 | 0.67 | 974 |
