Table 1 Efficacy of different antagonists on powdery mildew of Thompson grapevine disease parameters (incidence and severity) under Egyptian field conditions during 2016 and 2017 seasons
From: Evaluation of some biocontrol agents to control Thompson seedless grapevine powdery mildew disease
Tested antagonists | Disease incidence % | Disease severity % | ||||||
|---|---|---|---|---|---|---|---|---|
2016 | 2017 | Mean | Efficacy* | 2016 | 2017 | Mean | Efficacy* | |
T. harzianum (T.s.) | 17.1 | 17.3 | 17.2 | 70.19 | 6.1 | 6.5 | 6.3 | 71.23 |
T. viride (T.v.) | 18.3 | 18.5 | 18.4 | 68.11 | 8.7 | 8.9 | 8.8 | 59.82 |
T. hamatum (T.h.) | 22.4 | 22.6 | 22.5 | 61.01 | 11.3 | 11.5 | 11.4 | 47.95 |
T.s + T.v. | 14.1 | 14.6 | 14.35 | 75.13 | 4.4 | 4.6 | 4.5 | 79.45 |
T.s + T.h. | 16.2 | 16.6 | 16.4 | 71.58 | 5.5 | 5.8 | 5.65 | 74.20 |
T.v + T.h. | 21.3 | 21.7 | 21.5 | 62.74 | 9.6 | 10.0 | 9.8 | 55.25 |
T.s. + T.v. + T.h. | 11.3 | 11.6 | 11.45 | 80.16 | 2.1 | 2.3 | 2.2 | 89.95 |
Micronic sulfur (MS) | 24.4 | 25.2 | 24.8 | 57.02 | 12.7 | 13.0 | 12.85 | 41.32 |
Blight stop (T.s. + T.v. + T.h.) + MS | 13.1 | 13.3 | 13.2 | 77.12 | 3.3 | 3.7 | 3.5 | 84.02 |
Control untreated | 57.1 | 58.3 | 57.7 | 00.00 | 21.6 | 22.2 | 21.9 | 00.00 |
L S D at 0.05 | 1.60 | 0.09 | 0.11 | 0.08 | ||||