TABLE 1.
Incidence of “Ca. Phytoplasma solani”-positive plants in declining plants according to seasons and lavender species from 2008 to 2010
| Season or species | Total no. of plants tested | No. of “Ca. Phytoplasma solani”-positive plants | % of “Ca. Phytoplasma solani”-positive plants | Statistical significance (chi-square test) |
|---|---|---|---|---|
| Season | 8.3 × 10−10 | |||
| Spring | 1,023 | 297 | 29.0 | |
| Autumn | 947 | 435 | 45.9 | |
| Species | 4.0 × 10−10 | |||
| L. angustifolia | 869 | 407 | 46.8 (39.7–56.1)a | |
| L. angustifolia × L. latifolia hybrids (L. intermedia) | 1,101 | 325 | 29.5 (19.3–39.1)a |
a
Range in parentheses indicates the values for spring and autumn.