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Active components and structural features of insect sex pheromones in Pyraloidea.

MA Tao, ZHANG Meng, ZHU Xue-jiao, YANG Xing-cui, LI Yi-zhen, WEN Xiu-jun**   

  1. (Research Centre for Health Diagnosis and Protection Techniques of Woody Plants, College of Forestry, South China Agricultural University, Guangzhou 510642, China).
  • Online:2013-12-10 Published:2013-12-10

Abstract: At present, a total of 15576 species in Pyraloidea have been recorded, and many of them are the important agricultural and forest pests. Large areas are infested by these species, giving rise to the serious economic losses in agriculture and forestry. Characterized by high efficiency, environmental protection effect, and specificity, the insect sex pheromones have important application values in the integrated management of Pyraloidea pests. So far, the active components of the sex pheromones in 174 Pyraloidea pest species are understood, and 107 compounds are identified, among which, there are 38 acetates, 22 alcohols, 30 aldehydes, 4 hydrocarbons, and 13 aromatics. These compounds are simpler in structure, with a carbon length of C12 to C18. These pheromone components have a high overlapping ratio between the subfamilies, especially between the genera and the species. Some of the components are found in many insects. The sex pheromone components of different species in the same genus are very similar in structure, and even, the sex pheromone components in some species are identical, but in different proportions. To make a systematic comparison and analysis on the known sex pheromone components of Pyraloidea can provide evidence for the further identification of the sex pheromone components of other Pyraloidea species, and promote the identification and application of the sex pheromone components in Pyraloidea in China.