Groves R L, Walgenbach J F, Moyer J W, Kennedy G G
Department of Entomology, North Carolina State University, Raleigh, NC 27695, USA.
J Econ Entomol. 2003 Feb;96(1):1-11. doi: 10.1603/0022-0493-96.1.1.
The seasonal abundance and temporal pattern of Frankliniella fusca Hinds dispersal were monitored from 1996 to 2000 at 12 locations in central and eastern North Carolina. The predominant vector species of tomato spotted wilt virus (TSWV) captured across all locations was F. fusca (98%). The temporal patterns of F. fusca dispersal observed during spring seasons varied among locations in all years except 2000. Regression analysis estimated that times of first flight in the spring seasons varied among locations, whereas flight duration intervals were similar. Temporal patterns of F. fusca captured varied significantly between aerial traps placed 0.1 and 1.0 m above the soil surface. Fewer total thrips were captured at 0.1 m, although thrips dispersal occurred earlier and over a greater time interval compared with 1.0-m traps. Temporal patterns of TSWV occurrence differed among locations in the spring seasons of 1999 and 2000, whereas patterns of virus occurrence were similar during the fall seasons. Patterns of F. filsca dispersal and subsequent TSWV occurrence were synchronous at locations in 1999 and 2000 where the greatest number of TSWV lesions was recorded. Knowledge of the temporal patterns of F. fiasca dispersal and TSWV occurrence may be a useful indicator for describing the time when susceptible crops are at highest risk of TSWV infection.
1996年至2000年期间，在北卡罗来纳州中部和东部的12个地点监测了烟蓟马（Frankliniella fusca Hinds）的季节性丰度和扩散时间模式。在所有地点捕获的番茄斑萎病毒（TSWV）的主要传播媒介物种是烟蓟马（98%）。除2000年外，所有年份春季观察到的烟蓟马扩散时间模式在不同地点有所不同。回归分析估计，春季各地首次飞行的时间不同，而飞行持续时间间隔相似。放置在土壤表面0.1米和1.0米高处的空中诱捕器捕获的烟蓟马的时间模式差异显著。在0.1米处捕获的蓟马总数较少，尽管与1.0米处的诱捕器相比，蓟马扩散发生得更早，且时间间隔更长。1999年和2000年春季，不同地点TSWV的发生时间模式不同，而秋季病毒发生模式相似。在1999年和2000年记录到TSWV病斑数量最多的地点，烟蓟马的扩散模式和随后TSWV的发生是同步的。了解烟蓟马扩散和TSWV发生的时间模式可能是描述易感作物感染TSWV风险最高时间的有用指标。
