Onufrieva Ksenia S, Thorpe Kevin W, Hickman Andrea D, Leonard Donna S, Roberts E Anderson, Tobin Patrick C
Department of Entomology, Virginia Tech, Blacksburg, VA 24061, USA.
Hart Road Spencer, NY 14883, USA.
Insects. 2013 Jan 14;4(1):104-16. doi: 10.3390/insects4010104.
Mating disruption techniques are used in pest control for many species of insects, yet little is known regarding the environmental persistence of these pheromones following their application and if persistence is affected by climatic conditions. We first studied the persistent effect of ground applications of Luretape® GM in Lymantria dispar (L) mating disruption in VA, USA in 2006. The removal of Luretape® GM indicated that the strong persistent effect of disparlure in the environment reported by previous studies is produced by residual pheromone in the dispensers as opposed to environmental contamination. In 2010 and 2011, we evaluated the efficacy of two formulations, Disrupt® II and SPLAT GM(TM), in VA and WI, USA, which presented different climatic conditions. In plots treated in WI and VA, male moth catches in pheromone-baited traps were reduced in the year of treatment and one year after the pheromone applications relative to untreated controls. However, similar first- and second-year effects of pheromone treatments in VA and WI suggest that the release rate over one and two years was the same across markedly different climates. Future applications that use liquid or biodegradable formulations of synthetic pheromones could reduce the amount of persistence in the environment.
交配干扰技术被用于多种昆虫的害虫防治中，但对于这些信息素在施用后的环境持久性以及持久性是否受气候条件影响，人们了解甚少。我们首先在2006年研究了在美国弗吉尼亚州地面施用Luretape® GM对舞毒蛾交配干扰的持久效果。去除Luretape® GM表明，先前研究报道的信息素在环境中的强烈持久效果是由诱芯中的残留信息素产生的，而非环境污染。在2010年和2011年，我们在美国弗吉尼亚州和威斯康星州评估了两种制剂Disrupt® II和SPLAT GM(TM)的效果，这两个州气候条件不同。在威斯康星州和弗吉尼亚州处理过的地块中，与未处理的对照相比，在施用信息素当年和施用后一年，用信息素诱捕的雄蛾数量减少。然而，弗吉尼亚州和威斯康星州信息素处理的第一年和第二年效果相似，这表明在明显不同的气候条件下，一年和两年的释放率是相同的。未来使用合成信息素的液体或可生物降解制剂的应用可能会减少环境中的持久性。
