Article Figures & Data
Figures
- Figure 1.
Treatment types for inoculation of Quercus fusiformis with Ceratocystis fagacearum. (A) Positive and negative (treatments I and II); (B) flush pruning cut, unpainted (treatment III); (C) flush pruning cut, painted (treatment IV); and (D) proper pruning cut (treatment V). Arrows indicate location of wounds.
- Figure 2.
Symptom expression of Quercus fusiformis after inoculation with Ceratocystis fagacearum on 30 April 2003.
Tables
Treatments (no.) Diseasedz Healthy Total P value (comparison) Positive control (I) 7 a 3 10 0.006 (I, II) Flush cut unpainted (III) 6 ab 4 10 0.019 (II, III) Shigo cut (V) 4 abc 6 10 Flush cut painted (IV) 2 bc 8 10 0.024 (I, IV) Negative control (II) 1 c 9 10 ↵zNumbers in column followed by the same letter are not statistically different as determined with χ2 goodness of fit at P ≤ 0.05.
Treatments (no.) Mean diameter breast height (cm) Standard error Positive control (I) 17.89 0.4792 Negative control (II) 17.52 0.8942 Flush cut painted (IV) 20.70 1.1187 Flush cut unpainted (III) 20.06 1.0136 Shigo cut (V) 22.26 1.0804 ↵zDiameter Breast Height among treatments were not significant at P = 0.6093.
- Table 3.
Distribution of infected/treated trees by treatment and stem aspect ratios on 21 July 2003z.
Stem aspect ratios Treatments (no.) 0.2 to 0.29 0.3 to 0.39 0.4 to 0.49 0.5 to 0.59 Mean Standard error Flush cut unpainted (III) 1/1 1/2 3/6 1/1 0.3929 0.0214 Flush cut painted (IV) 0/1 0/4 2/5 0/0 0.4246 0.2061 Shigo cut (V) 0/1 3/5 1/4 0/0 0.3749 0.1936 Total 1/3 4/11 6/15 1/1 ↵zNumbers of infected trees among stem aspect ratios was not statistically significant (P = 0.2578).
Treatments (no.) Range Mean wound diameter (cm) Standard error Flush cut unpainted (III) 4.1 to 17.0 7.8a 1.3568 Flush cut painted (IV) 4.8 to 8.1 6.6ab 0.3908 Shigo cut (V) 2.8 to 8.1 5.3b 0.5283 ↵zMean wound diameters followed by different letters are significantly different, P = 0.10.
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