Ready reckoner for making 100 litres of spray solution of desired strength

 

Ready reckoner for making 100 litres of spray solution of desired strength

 

Strength of spray fluid required,

ai %

Number of g or ml of commercial formulation required per 100 litres of water

Strength of insecticide or fungicide formulation, %

100

80

75

50

40

35

30

25

20

10

0.01

10

12.5

13.3

20

25.0

28.6

33.3

40

50

100

0.015

15

18.8

20.0

30

37.5

42.9

50.0

60

75

150

0.02

20

25.0

26.7

40

50.0

57.1

66.7

80

100

200

0.025

25

31.3

33.3

50

62.5

71.4

83.3

100

125

250

0.03

30

37.5

40.0

60

75.0

85.7

100

120

150

300

0.035

35

43.8

46.7

70

87.5

100

117

140

175

350

0.04

40

50.0

53.3

80

100

114

133

160

200

400

0.045

45

56.3

60.0

90

113

129

150

180

225

450

0.05

50

62.5

66.7

100

125

143

167

200

250

500

0.075

75

93.8

100

150

188

214

250

300

375

750

0.10

100

125

133

200

250

286

333

400

500

1000

0.20

200

250

267

400

500

571

667

800

1000

2000

0.25

250

313

333

500

625

714

833

1000

1250

2500

0.30

300

375

400

600

750

857

1000

1200

1500

3000

0.40

400

500

533

800

1000

1143

1333

1600

2000

4000

0.50

500

625

667

1000

1250

1429

1667

2000

2500

5000

1.00

1000

1250

1333

2000

2500

2857

3333

4000

5000

10000

 

References Kerala Agricultural University. 2011. Package of Practices Recommendations: Crops.14th edition. Kerala Agricultural University, Thrissur- 360 p.