Number of grubs/plant | Mean# number of aphids per plant | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
2018 | Mean | 2019 | Mean | |||||||
Pre-count | 7 DAFR* | 7 DASR** | 7DATR*** | Pre-count | 7 DAFR* | 7 DASR** | 7DATR*** | |||
4 | 23.87a | 1.27 ± 0.07a | 0.23 ± 0.03a | 0.07 ± 0.03a | 0.52 ± 0.19a | 33.73a | 1.47 ± 0.09a | 0.43 ± 0.18a | 0.07 ± 0.07a | 0.66 ± 0.22a |
5 | 24.60a | 1.20 ± 0.12a | 0.13 ± 0.03a | 0.07 ± 0.03a | 0.47 ± 0.19a | 34.83a | 1.20 ± 0.15a | 0.47 ± 0.03a | 0.03 ± 0.03a | 0.57 ± 0.18a |
6 | 25.10a | 1.00 ± 0.12a | 0.10 ± 0.02a | 0.03 ± 0.03a | 0.38 ± 0.16a | 34.67a | 1.00 ± 0.17a | 0.37 ± 0.03a | 0.10 ± 0.02a | 0.49 ± 0.14a |
Untreated control | 29.77a | 31.22 ± 0.20b | 32.73 ± 0.27b | 33.40 ± 0.60b | 32.45 ± 0.38b | 36.03a | 30.97 ± 0.38b | 31.43 ± 0.03b | 32.60 ± 0.06b | 31.67 ± 0.27b |
P value | 0.163 | < 0.0001 | < 0.0001 | < 0.0001 | < 0.0001 | 0.815 | < 0.0001 | < 0.0001 | < 0.0001 | < 0.0001 |