首页> 外文会议>International Society of Sugar Cane Technologists Congress vol.2; 20050130-0204; Guatemala City(GT) >MONITORING POPULATIONS OF ADULT FALL ARMYWORM, SPODOPTERA FRUIGIPERDA SMITH (LEPIDOPTERA: NOCTUIDAE), IN FLORIDA SUGARCANE USING PHEROMONE TRAPS, WITH SPECIAL REFERENCE TO GENETIC STRAINS OF THE PEST
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MONITORING POPULATIONS OF ADULT FALL ARMYWORM, SPODOPTERA FRUIGIPERDA SMITH (LEPIDOPTERA: NOCTUIDAE), IN FLORIDA SUGARCANE USING PHEROMONE TRAPS, WITH SPECIAL REFERENCE TO GENETIC STRAINS OF THE PEST

机译:使用信息素诱捕器监测佛罗里达州蔗糖中成年秋虫的种群数量,果蝇(SPODOPTERA FRUIGIPERDA Smith)

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Fall armyworm (FAW) is a pest of occasional importance in Florida sugarcane and sporadic outbreaks of FAW often develop rapidly in young cane and can result in severe defoliation. Traps baited with pheromones hold potential for predicting where and when infestations develop. Two genetic strains of FAW occur in Florida, the 'corn' and 'rice' strains, but whether both strains are associated with sugarcane was not known. Commercial pheromone lures for monitoring FAW in sugarcane were compared by obtaining data on numbers of FAW collected at pheromone traps, and investigating the genetic strain(s) of FAW associated with sugarcane. Five synthetic FAW pheromones available for purchase (Hercon, Trece, Scentry 2-component, Scentry 4-component, and Scenturion) were evaluated using universal moth traps (yellow, white and green combination) at multiple locations in Florida during 2003 and 2004. Polymerase chain reaction (PCR) analyses were used to identify FAW strains. The Scenturion lure attracted significantly more FAW than the other lures. The Trece and Scentry 2 lures ranked second in numbers of moths captured. For traps baited with Scenturion lures, numbers of moths collected at traps peaked during 2003 and 2004 at maximums of 125 and 356 moths per trap per night, respectively. PCR analyses indicated 99% FAW collected during 2003 were 'rice strain' individuals. In 2004, 96% moths collected in areas where no corn was grown were 'rice strain' individuals and 85% were 'rice strain' over all trapping locations. Only a few FAW larvae were found in cane, and these were 'rice' strain. Larvae of each strain were found in corn. The study provided base information on pheromone trapping for FAW and indicated that FAW infestations in Florida sugarcane may be predominantly by 'rice strain' individuals.
机译:秋季粘虫(FAW)是佛罗里达州甘蔗中偶发的害虫,一时爆发的FAW通常在年轻甘蔗中迅速发展,并可能导致严重的落叶。用信息素诱饵诱捕的陷阱有潜力预测何时何地发生侵扰。一汽的两种遗传菌株分别是“玉米”和“大米”菌株,但尚不清楚这两种菌株是否与甘蔗有关。通过获取有关信息素诱捕器收集的一汽数量的数据,并调查与甘蔗相关的一汽遗传株,比较了用于监测甘蔗中一汽的商业信息素诱饵。在2003年至2004年期间,在佛罗里达州的多个地点使用通用飞蛾捕集器(黄色,白色和绿色组合)评估了五种可供购买的合成一汽信息素(Hercon,Trece,Scentry 2组分,Scentry 4组分和Scenturion)。链反应(PCR)分析用于鉴定一汽病毒株。 Scenturion的诱饵比其他诱饵吸引了更多的一汽。 Trece and Scentry 2诱饵在捕获的飞蛾数量中排名第二。对于诱捕了Scenturion诱饵的诱集装置,在该诱集装置上收集的蛾类数量在2003年和2004年达到峰值,每个诱集装置每晚的最大飞蛾数量分别为125和356个飞蛾。 PCR分析表明,2003年收集的99%一汽是“稻株”个体。 2004年,在没有玉米种植的地区收集的飞蛾中有96%是“稻株”个体,而在所有诱捕地点中有85%是“稻株”。在甘蔗中仅发现了少量一汽幼虫,这些是“大米”毒株。在玉米中发现了每种菌株的幼虫。这项研究提供了有关捕获一汽信息素的基本信息,并指出佛罗里达州甘蔗中一汽侵染可能主要是由“稻株”个体引起的。

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