| . | . | Mean number of mealybugs/vinee (Mean ± SEM) . | ||||
|---|---|---|---|---|---|---|
| Treatment (Trade name) . | Rate/acre (fl oz)a . | 20 DBTb . | 1 DATc . | 10 DATc . | 17 DATc . | 29 DATc . |
| Untreated check | – | 2.3 + 0.93a | 3.8 ± 1.01a | 3.4 ± 0.67a | 3.9 ± 1.01a | 3.4 ± 0.99a |
| Applaud | 12 | 1.3 ± 0.26a (P = 0.50)* | 1.3 ± 0.45a (P = 0.095) | 1.1 ± 0.27b (P = 0.0094) | 5.3 ± 3.54a (P = 0.316) | 2.2 ± 0.81a (P = 0.399) |
| Brigade | 3.2 | 1.3 ± 0.21a (P = 0.50) | 1.5 ± 0.34a (P = 0.18) | 1.1 ± 0.40bc (P = 0.019) | 3.5 ± 1.13a (P = 0.73) | 4.9 ± 2.97a (P = 0.755) |
| Movento | 4 | 0.8 ± 0.25a (P = 0.146) | 0.7 ± 0.26b (P = 041) | 1.5 ± 0.86bcd (0.049) | 1.1 ± 0.40b (P = 0.0206) | 1.5 ± 0.63a (P = 0.306) |
| . | . | Mean number of mealybugs/vinee (Mean ± SEM) . | ||||
|---|---|---|---|---|---|---|
| Treatment (Trade name) . | Rate/acre (fl oz)a . | 20 DBTb . | 1 DATc . | 10 DATc . | 17 DATc . | 29 DATc . |
| Untreated check | – | 2.3 + 0.93a | 3.8 ± 1.01a | 3.4 ± 0.67a | 3.9 ± 1.01a | 3.4 ± 0.99a |
| Applaud | 12 | 1.3 ± 0.26a (P = 0.50)* | 1.3 ± 0.45a (P = 0.095) | 1.1 ± 0.27b (P = 0.0094) | 5.3 ± 3.54a (P = 0.316) | 2.2 ± 0.81a (P = 0.399) |
| Brigade | 3.2 | 1.3 ± 0.21a (P = 0.50) | 1.5 ± 0.34a (P = 0.18) | 1.1 ± 0.40bc (P = 0.019) | 3.5 ± 1.13a (P = 0.73) | 4.9 ± 2.97a (P = 0.755) |
| Movento | 4 | 0.8 ± 0.25a (P = 0.146) | 0.7 ± 0.26b (P = 041) | 1.5 ± 0.86bcd (0.049) | 1.1 ± 0.40b (P = 0.0206) | 1.5 ± 0.63a (P = 0.306) |
Means within columns followed by a common letter are not significantly different (Wilcoxon test of each pair at P ≤ 0.05).
aRate expressed in fl oz per acre.
bMealybug densities days before the treatment (DBT).
cMealybug densities days after the first treatment (DAT).
eMealybug densities determined by a 5-min count on each vine treatment.
*P-values in parentheses indicate when densities in different chemical treatments are compared against the untreated check.
| . | . | Mean number of mealybugs/vinee (Mean ± SEM) . | ||||
|---|---|---|---|---|---|---|
| Treatment (Trade name) . | Rate/acre (fl oz)a . | 20 DBTb . | 1 DATc . | 10 DATc . | 17 DATc . | 29 DATc . |
| Untreated check | – | 2.3 + 0.93a | 3.8 ± 1.01a | 3.4 ± 0.67a | 3.9 ± 1.01a | 3.4 ± 0.99a |
| Applaud | 12 | 1.3 ± 0.26a (P = 0.50)* | 1.3 ± 0.45a (P = 0.095) | 1.1 ± 0.27b (P = 0.0094) | 5.3 ± 3.54a (P = 0.316) | 2.2 ± 0.81a (P = 0.399) |
| Brigade | 3.2 | 1.3 ± 0.21a (P = 0.50) | 1.5 ± 0.34a (P = 0.18) | 1.1 ± 0.40bc (P = 0.019) | 3.5 ± 1.13a (P = 0.73) | 4.9 ± 2.97a (P = 0.755) |
| Movento | 4 | 0.8 ± 0.25a (P = 0.146) | 0.7 ± 0.26b (P = 041) | 1.5 ± 0.86bcd (0.049) | 1.1 ± 0.40b (P = 0.0206) | 1.5 ± 0.63a (P = 0.306) |
| . | . | Mean number of mealybugs/vinee (Mean ± SEM) . | ||||
|---|---|---|---|---|---|---|
| Treatment (Trade name) . | Rate/acre (fl oz)a . | 20 DBTb . | 1 DATc . | 10 DATc . | 17 DATc . | 29 DATc . |
| Untreated check | – | 2.3 + 0.93a | 3.8 ± 1.01a | 3.4 ± 0.67a | 3.9 ± 1.01a | 3.4 ± 0.99a |
| Applaud | 12 | 1.3 ± 0.26a (P = 0.50)* | 1.3 ± 0.45a (P = 0.095) | 1.1 ± 0.27b (P = 0.0094) | 5.3 ± 3.54a (P = 0.316) | 2.2 ± 0.81a (P = 0.399) |
| Brigade | 3.2 | 1.3 ± 0.21a (P = 0.50) | 1.5 ± 0.34a (P = 0.18) | 1.1 ± 0.40bc (P = 0.019) | 3.5 ± 1.13a (P = 0.73) | 4.9 ± 2.97a (P = 0.755) |
| Movento | 4 | 0.8 ± 0.25a (P = 0.146) | 0.7 ± 0.26b (P = 041) | 1.5 ± 0.86bcd (0.049) | 1.1 ± 0.40b (P = 0.0206) | 1.5 ± 0.63a (P = 0.306) |
Means within columns followed by a common letter are not significantly different (Wilcoxon test of each pair at P ≤ 0.05).
aRate expressed in fl oz per acre.
bMealybug densities days before the treatment (DBT).
cMealybug densities days after the first treatment (DAT).
eMealybug densities determined by a 5-min count on each vine treatment.
*P-values in parentheses indicate when densities in different chemical treatments are compared against the untreated check.
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