| Autor: |
Kemerait, Robert C., Shurley, W. Don, Ziehl, Amanda R., Sanders, F. H., Davis, Richard F., Brown, Steven M., Brown, S. N., McGriff, D. E., Mickler, K. D., Spaid, D. G., Harrison, W. E., Mitchell, B. R., Beard, Glenn H., Von Waldner, M. D., Duffie, Will D., Dollar, Mike, Rucker, Keith |
| Zdroj: |
Proceedings of the Beltwide Cotton Conferences: Cotton Disease Council; Jan2008, p245-257, 13p, 8 Charts |
| Abstrakt: |
Results from 24 cotton studies conducted from 2002 to 2007 are reported here. Field sites were naturally infested with the southern root-knot nematodes (Meloidogyne incognita). Efficacy (mean yield) and value (mean dollars/acre) of various nematicide treatments to include AVICTA Complete Cotton (formerly known as AVICTA Complete Pak), AERIS Seed-Applied System, Temik 15G (aldicarb), Vydate C-LV (oxamyl) and Telone II (1,3- dichloropropene) were compared to seed treated only with insecticides thiomethoxam (Cruiser) or imidacloprid (Gaucho or Gaucho Grande). Temik 15G, 5 lb/A, was assessed in each of the 24 trials; other nematicides were compared to Temik 15G, 5 lb/A, and Cruiser or Gaucho in subsets of the trials. Yield and value data were grouped and analyzed according to final root-knot nematode populations. Root gall ratings assessed approximately 30 days after planting were typically significantly lower on plants treated with Temik 15G than on plants from seed treated with AVICTA Complete Cotton, AERIS Seed-Applied System, Cruiser, or Gaucho Grande. Due to the tremendous variability in data across numerous large, replicated, on-farm trials, it was usually not possible to determine strict, statistical differences between treatments. However, accepting the limitations of a grower-oriented study such as this, Temik 15G, 5 lb/A provided better relative yields and value to the grower than did AVICTA Complete Cotton or AERIS Seed-Applied System. In limited trials, the use of Vydate C-LV did not add value to the use of Temik 15G, 5 lb/A, for management of nematodes. Side-dressed applications of Temik 15G, 5 lb/A, added yield but not value to use of an at-plant application of Temik 15G alone. Finally, use of Telone II, 3 gal/A, added yield and value to the cotton crop beyond that realized with Temik 15G, 5 lb/A. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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