| Autor: |
G. F. Chappell, D. A. Herbert |
| Rok vydání: |
1995 |
| Předmět: |
|
| Zdroj: |
Arthropod Management Tests. 20:235-235 |
| ISSN: |
2155-9856 |
| DOI: |
10.1093/amt/20.1.235 |
| Popis: |
Efficacy of selected insecticides, with and without adjuvants, was evaluated against CEW in soybean. Double-crop ‘Holladay’ soybean was planted in 15-inch rows on 29 Jun. Treatments were applied on 31 Aug with water using a CO2 pressurized backpack sprayer calibrated to deliver 12.0 gpa at 18 psi through 8002VS fiat fan nozzles spaced 18 inches apart on the spray boom. A randomized complete block design was used with 4 replicates; plots were 10 ft by 30 ft. Treatments were evaluated 1 h before and 2 and 6 DAT by comparing numbers of larvae using a rigid beat cloth sampling technique. Percent pod damage was determined 9 DAT by randomly selecting 3 plants from the center rows of each plot and recording the number of damaged pods. Yield was determined by combining the 3 center rows of each plot (97.5 row ft) using an Almaco small-plot combine. Data were analyzed using ANOVA and LSD statistical procedures. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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