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Table 2 Concentration and efficacy (%) of organic matter used for disease and pest control in different plants

From: Organic matter in the pest and plant disease control: a meta-analysis

Organic source

Concentration

Mean

SD

Efficiency (%)

SD

Vermicompost

20–500 g/kg

292.5

204.01

56.04

31.14

Compost

100–500 g/kg

366.7

230.94

69.94

22.89

Vermicompost tea

20–40 g/L

28.0

10.95

39.89

26.32

Compost tea

12.5–200 g/L

65.3

83.22

69.67

31.64

Humic substances

1–500 mg/L

141.7

208.57

74.89

20.39

Combinations

–

–

–

62.29

29.70

Others

30–80 g/kg

56.7

25.17

70.43

7.17

  1. Efficacy is given by the formula proposed by Sumkato, 2003 = (Incidence of disease or pest in control—incidence in treatment/incidence in control) × 100
  2. SD standard deviation