Table 1 Effect of intercropping on parasitization of whitefly pupae by Encarsia spp. in cotton (pooled of 2016 and 2017)
Treatments | Percent parasitization of whitefly pupae per 30 leaves | ||||||
|---|---|---|---|---|---|---|---|
5 July | 16 July | 2 August | 17 August | 2 Sept | 19 Sept | Mean | |
Cotton + sesame 1:1 | 43.33 (41.15)** | 45.00 (42.11) | 27.33 (31.50) | 23.33 (28.85) | 15.33 (22.99) | 9.66 (18.07) | 27.33* (30.79)b |
Cotton + sesame 2:1 | 26.33 (30.85) | 44.00 (41.53) | 26.00 (30.63) | 19.33 (26.06) | 19.33 (26.06) | 9.33 (17.74) | 24.05 (28.82)b |
Cotton + sesame 3:1 | 22.33 (28.18) | 39.00 (38.62) | 23.00 (28.63) | 17.66 (24.83) | 13.00 (21.08) | 8.00 (16.35) | 20.50 (26.30)c |
Cotton + pigeonpea 1:1 | 43.33 (41.15) | 50.66 (45.36) | 35.33 (36.45) | 30.33 (33.39) | 30.33 (33.39) | 9.33 (17.74) | 33.22 (34.59)a |
Cotton + pigeonpea 2:1 | 34.66 (36.04) | 46.66 (43.06) | 34.00 (35.64) | 23.33 (28.85) | 44.66 (41.91) | 9.66 (18.08) | 32.16 (33.94)a |
Cotton + pigeonpea 3:1 | 32.33 (34.63) | 45.00 (42.11) | 26.33 (30.85) | 26.33 (30.85) | 25.00 (29.97) | 8.66 (17.10) | 27.28 (30.82)b |
Cotton + pearl millet (border crop) | 15.33 (23.03) | 36.00 (36.85) | 19.33 (26.06) | 14.33 (22.21) | 14.00 (21.93) | 9.33 (17.77) | 18.05 (24.65)c |
Cotton + sorghum (border crop) | 19.00 (25.81) | 30.33 (33.39) | 18.33 (25.30) | 19.33 (26.06) | 12.33 (20.53) | 7.00 (15.17) | 17.72 (24.42)c |
Sole cotton (control) | 22.66 (28.41) | 33.66 (35.44) | 13.66 (21.63) | 14.66 (22.47) | 7.66 (16.01) | 4.66 (12.35) | 16.16 (22.76)d |
Standard error of mean (SE ± m) | (0.59) | (1.02) | (0.80) | (0.74) | (0.86) | (0.90) | (1.30) |
Critical difference (CD at 5%) | (1.80) | (3.11) | (2.42) | (2.25) | (2.61) | (2.72) | (3.72) |