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Table 1 Observation of screening for pesticidal activity for chloroform ext. (by surface film test) after 24 hours and 48 hours

From: Pesticidal and pest repellency activities of rhizomes of Drynaria quercifolia (J. Smith) against Tribolium castaneum (Herbst)

Dose (mg/cm2)

#

Mortality record for applied pests

  

Record after 24 hours

Average ± SD record after 24 hours

Record after 48 hours

Average ± SD record after 48 hours

1.77

10

10

9.66 ± 0.57

10

9.66 ± 0.57

1.77

10

10

10

1.77

10

9

9

0.88

10

10

9.00 ± 1.00

10

9.00 ± 1.00

0.88

10

9

9

0.88

10

8

8

0.44

10

5

5.33 ± 0.57

6

5.66 ± 0.57

0.44

10

6

6

0.44

10

5

5

0.22

10

2

2.00 ± 1.00

2

2.33 ± 0.57

0.22

10

1

2

0.22

10

3

3

Control

10

0

0.00

0

0.00

  1. # = Number of pests applied per petridish.