| Autor: |
Kemerait Jr, Robert C., Phillip Roberts, Brewer, Clifford L., Brown, Scott N., Harrison, William E., Mitchell, Brad R., McDaniel, Richard G., McNeill IV, Robert D. |
| Zdroj: |
Proceedings of the Beltwide Cotton Production Conference; 2004, p389-394, 6p |
| Abstrakt: |
Five trials were conducted in 2003 to compare the efficacy of aldicarb (Temik 15G) to either imidacloprid (Gaucho 480F) or to thiamethoxam (Cruiser 5FS) alone and in combination with 1,3-dichloropropene (Telone II) in fields where nematodes were believed to be a problem on cotton. Temik 15G (5 lb/A at plant + 5 lb/A sidedress) was included in four of the five trials for comparison. Southern root-knot nematode, Meloidogyne incognita, was found at three sites; Columbia lance nematode, Hoplolaimus columbus, was found in the other two sites. The difference in yield between aldicarb and imidacloprid or thiamethoxam was never statistically significant; however the aldicarb numerically out-yielded one or the other of these compounds in three of four direct comparisons. When combinations of aldicarb + 1,3-dichloropropene were compared to combinations of 1,3-dichloropropene with either imidacloprid or thiamethoxam, differences in yield were not statistically significant; however the combination with aldicarb had the greater numerical yield in four of five trials. Because the interaction between location and treatment was not significant at p=0.05, data were analyzed across four field sites where aldicarb and imidacloprid were compared. Differences between aldicarb and imidacloprid were not significant nor were they different in combination with 1,3-dichloropropene. Yields from treatments that included 1,3-dichloropropene were significantly greater than those which included only aldicarb or imidacloprid, but were not different from the aldicarb applied in-furrow at planting followed by a sidedress application. Two applications of Temik 15G at 5 lb/A was as effective as Telone II treatments when populations of southern root-knot nematodes were moderate. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
