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Table 2 Predatory efficiency of C. zastrowi sillemi against B. tabaci under protected cultivation conditions

From: Efficacy of the green lace wing, Chrysoperla zastrowi sillemi (Esben-Peterson) (Neuroptera: Chrysopidae), against sucking pests of tomato: an appraisal under protected conditions

Number of grubs/plant

Mean# number of whiteflies per plant

2018

Mean

2019

Mean

Pre-count

7 DAFR*

7 DASR**

7DATR***

Pre-count

7 DAFR*

7 DASR**

7DATR***

4

13.60a

0.63 ± 0.03a

0.23 ± 0.03a

0.13 ± 0.03a

0.33 ± 0.08a

10.33a

0.57 ± 0.20a

0.20 ± 0.10a

0.07 ± 0.03a

0.28 ± 0.10a

5

14.13a

0.50 ± 0.12a

0.23 ± 0.03a

0.07 ± 0.03a

0.27 ± 0.07a

10.53a

0.63 ± 0.09a

0.20 ± 0.06a

0.03 ± 0.03a

0.29 ± 0.09a

6

12.47a

0.47 ± 0.03a

0.33 ± 0.07a

0.13 ± 0.03a

0.31 ± 0.05a

10.03a

0.50 ± 0.15a

0.37 ± 0.27a

0.13 ± 0.03a

0.33 ± 0.11a

Untreated control

13.80a

11.80 ± 0.31b

12.77 ± 0.09b

13.07 ± 0.24b

12.54 ± 0.22b

10.10a

10.10 ± 1.33b

10.57 ± 1.50b

10.60 ± 0.35b

10.42 ± 0.59b

P value

0.767

< 0.0001

< 0.0001

< 0.0001

< 0.0001

0.980

< 0.0001

< 0.0001

< 0.0001

< 0.0001

  1. #Mean of three replications
  2. Means ± standard error followed by the same letter within a column are not significantly different (P < 0.05)
  3. *7 days after first release
  4. **7 days after second release
  5. ***7 days after third release