| Autor: |
J. S. Bacheler, D. W. Mott |
| Rok vydání: |
1993 |
| Zdroj: |
Insecticide and Acaricide Tests. 18:216-216 |
| ISSN: |
0276-3656 |
| DOI: |
10.1093/iat/18.1.216 |
| Popis: |
Cotton was planted on 15 May in a Marlboro sandy loam soil in Laurinburg, NC. Recommended agronomic practices for fertility and weed control were followed and 0.6 lb (AI)/acre Temik used at planting for thrips. A randomized complete block design with 4 replicates and 6-row (40 inch centers) x 45 ft plots with 10 ft alleys were utilized. Treatments were applied with a backpack CO2-pressurized sprayer calibrated to deliver 8.0 gal/acre total volume at 50 psi with one TX-8 Spraying Systems® nozzle per row. Applications were made on 28 Jul, 4 and 7 Aug and 6 Sep. One hundred squares and bolls per treatment (25/plot) were inspected for damage and live ECB and BW larvae 72 h after the 2nd and 3rd applications. European corn borer main stem tunnels were counted on 100 plants per treatment (25/plot) on 31 Aug. A final 100-boll sample was taken on 22 Sep and inspected for ECB and BW damage. Yield were harvested from the middle 2 rows with a 1-row John Deere mechanical harvester. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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