Figure 1:
Figure 2:
Figure 3:
Maximum, minimum, and overall mean population densities of Mesocriconema xenoplax (M_ xenoplax/100 cm3 soil) for each of the five population years (April 1 through March 31, variable number of sample dates per year) in a sweet cherry orchard in Summerland, British Columbia_ Month names in parentheses are the month in which the maximum or minimum was recorded_ The two “Date p-values” for each year are p-values from repeated measures analyses of effect of sample date for the entire population year and for the growing season (April through October), respectively_
| Year | Maximum | Minimum | Mean | Date p-value |
|---|---|---|---|---|
| 2018–19 (n = 55) | 181 (June) | 39 (May) | 101 | 0.08, 0.04 |
| 2019–20 (n = 50) | 217 (March) | 61 (April) | 122 | 0.06, 0.09 |
| 2020–21 (n = 40) | 117 (September) | 26 (July) | 69 | 0.04, 0.15 |
| 2021–22 (n = 50) | 133 (July) | 43 (October) | 87 | 0.13, 0.13 |
| 2022–23 (n = 40) | 183 (March) | 48 (June) | 89 | 0.20, 0.18 |
Summary of soil temperatures at 15-cm depth and seasonal milestones for the five population years (April 1 through March 31) of the study_ Column headings “Date > 10°C” and “Date < 10°C” are the dates on which soil temperatures rose above 10°C or dropped below 10°C, respectively_ “Max_ (date)” and “Min_ (date)” refer to maximum and minimum temperatures recorded within each population year and the dates they were recorded_ “DD total” refers to the total number of degree-days accumulated through the year, calculated using base 0°C_
| Year | Date > 10°C | Max. (date) | Date < 10°C | DD total | Min. (date) |
|---|---|---|---|---|---|
| 2018–19 | 21 April | 20 (11 Aug) | 3 Oct | 3172 | −2.9 (10 Feb) |
| 2019–20 | 18 April | 20 (10 Aug) | 8 Oct | 3234 | −0.4 (15 Jan) |
| 2020–21 | 18 April | 20 (1 Aug) | 13 Oct | 3305 | −3.0 (12 Feb) |
| 2021–22 | 16 April | 23 (1 July) | 8 Oct | 3379 | 0 (27 Dec) |
| 2022–23 | 29 April | 22 (28 July) | 18 Oct | 3190 | −2.9 (22 Dec) |