Table 2 Infestation reduction percentage of Pectinophora gossypiella during two seasons
From: Influence of some insecticide sequences on the injurious insect- pests of cotton plants
Treatments | Percentage of infestation reduction | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
First spray | Second spray | Third spray | Fourth spray | General mean | |||||||||
1st week | 2nd week | Mean | 1st week | 2nd week | Mean | 1st week | 2nd week | Mean | 1st week | 2nd week | Mean | ||
Season 2017 | |||||||||||||
Sequence 1 | Profenofos | Profenofos | Cypermethrin | Cypermethrin | |||||||||
78.3 | 75.0 | 76.7b | 80.0 | 79.0 | 79.5b | 72.4 | 70.9 | 71.7b | 70.6 | 68.5 | 69.6c | 74.4b | |
Sequence 2 | Spinosad | Profenofos | Spinosad | Carbosulfan | |||||||||
90.4 | 85.0 | 87.7a | 92.0 | 89.0 | 90.5a | 82.9 | 80.0 | 81.5a | 85.8 | 83.0 | 84.4a | 86.0a | |
Sequence 3 | Cypermethrin | Profenofos | Cypermethrin | Carbosulfan | |||||||||
84.0 | 81.0 | 82.5a | 91.4 | 86.0 | 88.7a | 83.6 | 80.2 | 81.9a | 82.6 | 78.0 | 80.3a | 83.4a | |
Sequence 4 | Carbosulfan | Carbosulfan | Cypermethrin | Cypermethrin | |||||||||
82.9 | 77.1 | 80.0a | 70.3 | 66.3 | 68.3c | 77.4 | 71.0 | 74.2b | 81.0 | 76.2 | 78.6b | 75.3b | |
Sequence 5 | Acetamiprid | Cypermethrin | Chlorfenapyr | Profenofos | |||||||||
93.2 | 92.0 | 92.6a | 82.6 | 80.4 | 81.5a | 90.2 | 87.0 | 88.6a | 93.3 | 89.0 | 91.2a | 88.5a | |
Sequence 6 | Profenofos | Spinosad | Cypermethrin | Carbosulfan | |||||||||
88.1 | 84.4 | 86.3a | 84.3 | 82.6 | 83.5a | 81.5 | 79.1 | 80.3a | 76.7 | 75.7 | 76.2b | 81.6a | |
Sequence 7 | Cypermethrin | Emmamectin benzoate | Indoxacarb | Profenofos | |||||||||
93.0 | 89.7 | 91.4a | 96.4 | 95.0 | 95.7a | 94.5 | 93.2 | 93.9a | 93.7 | 91.2 | 92.5a | 93.4a | |
Season 2018 | |||||||||||||
Sequence 1 | Profenofos | Profenofos | Cypermethrin | Cypermethrin | |||||||||
81.8 | 79.2 | 80.5a | 77.7 | 68.3 | 73.0b | 71.5 | 68.5 | 70.0b | 67.1 | 64.8 | 66.0c | 72.4b | |
Sequence 2 | Spinosad | Profenofos | Spinosad | Carbosulfan | |||||||||
93.0 | 90.7 | 91.9a | 90.9 | 88.5 | 89.7a | 81.6 | 79.0 | 80.3a | 87.7 | 84.3 | 86.0a | 87.0a | |
Sequence 3 | Cypermethrin | Profenofos | Cypermethrin | Carbosulfan | |||||||||
91.8 | 77.9 | 84.9a | 88.5 | 84.0 | 86.3a | 78.3 | 71.1 | 74.7b | 80.7 | 77.0 | 78.9b | 81.2a | |
Sequence 4 | Carbosulfan | Carbosulfan | Cypermethrin | Cypermethrin | |||||||||
80.1 | 78.0 | 79.1b | 65.5 | 61.0 | 63.3c | 78.0 | 72.0 | 75.0b | 78.2 | 75.2 | 76.7b | 73.5b | |
Sequence 5 | Acetamiprid | Cypermethrin | Chlorfenapyr | Profenofos | |||||||||
94.0 | 92.6 | 93.3a | 85.1 | 81.0 | 82.1a | 91.0 | 88.3 | 89.7a | 94.4 | 90.2 | 92.3a | 89.4a | |
Sequence 6 | Profenofos | Spinosad | Cypermethrin | Carbosulfan | |||||||||
86.9 | 82.1 | 84.5a | 81.5 | 79.1 | 80.3a | 75.8 | 73.9 | 74.9b | 81.6 | 78.4 | 80.0a | 80.8a | |
Sequence 7 | Cypermethrin | Emmamectin benzoate | Indoxacarb | Profenofos | |||||||||
93.9 | 90.0 | 92.0a | 97.6 | 95.4 | 96.5a | 95.9 | 93.6 | 94.8a | 94.2 | 92.0 | 93.1a | 94.1a | |