Emergence,Mating and Oviposition Behavior of the Chinese Population in Pink Bollworm,Pectinophora gossypiella (Lepidoptera:Gelechiidae)  

作　　者：WU Huai-heng HUANG Min-song WAN Peng Kris A G Wyckhuys WU Kong-ming 

机构地区：[1]State Key Laboratory for Biology of Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences [2]Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences [3]International Center for Tropical Agriculture CIAT-Asia

出　　处：《Journal of Integrative Agriculture》2013年第4期653-662,共10页农业科学学报（英文版）

基　　金：supported by the National 973 Programof China (2006CB102004);the Key Project for Breeding Genetic Modified Organisms (2008ZX08012-004) of the Chinese Ministry of Agriculture (2008ZX08012-004)

摘　　要：The pink bollworm, Pectinophora gossypiella （Lepidoptera： Gelechiidae） is one of the most serious lepidopteran pests of cotton in the world. This pest invaded China at the onset of the 20th century, possibly through repeated introductions from several different locations worldwide. In this paper, we describe different behavioral parameters of this Hubei P. gossypiella strain under laboratory and field conditions. Using an infra-red video recorder, we observed （nocturnal） emergence, flight and mating activities, and oviposition patterns. Moth emergence started from 13：00 and continued up till 23：00. Under laboratory and field conditions, 2-7-d-old moths initiated flight around sunset, peaked 50 rain later and gradually declined until 04：00. Although mating started immediately after darkness （i.e., 20：00）, mating behavior was most intense from 23：00 to 03：40. Oviposition also showed distinct time-related patterns, with approx. 70% eggs laid between 20：00 and 22：00. In the studies of the relationship between flight and oviposition, the duration of flight had an effect on oviposition. The 1-d-old moths flown for 6 and 12 h began oviposition earlier than the unflown ones, and the 6-h flight had no effect on the egg production. However, the longevity of the flown moths was shortened after flight. In addition, the peaks of oviposition for the flown moths were advanced 2-3 d. The age when the moths flied affected the oviposition of adult moths. The earlier the moths started to fly after emergence, the greater the fecundity they had. The average egg production of moths flown for 24 h was less than that of non-flown moths which were of the same age. Both flight and delay in mating could advance the oviposition peak. Our study provides detailed insights in nocturnal activities and the reproductive biology of local P. gossypiella populations, which could be employed to fine-tune current pest management programs in China.The pink bollworm, Pectinophora gossypiella （Lepidoptera： Gelechiidae） is one of the most serious lepidopteran pests of cotton in the world. This pest invaded China at the onset of the 20th century, possibly through repeated introductions from several different locations worldwide. In this paper, we describe different behavioral parameters of this Hubei P. gossypiella strain under laboratory and field conditions. Using an infra-red video recorder, we observed （nocturnal） emergence, flight and mating activities, and oviposition patterns. Moth emergence started from 13：00 and continued up till 23：00. Under laboratory and field conditions, 2-7-d-old moths initiated flight around sunset, peaked 50 rain later and gradually declined until 04：00. Although mating started immediately after darkness （i.e., 20：00）, mating behavior was most intense from 23：00 to 03：40. Oviposition also showed distinct time-related patterns, with approx. 70% eggs laid between 20：00 and 22：00. In the studies of the relationship between flight and oviposition, the duration of flight had an effect on oviposition. The 1-d-old moths flown for 6 and 12 h began oviposition earlier than the unflown ones, and the 6-h flight had no effect on the egg production. However, the longevity of the flown moths was shortened after flight. In addition, the peaks of oviposition for the flown moths were advanced 2-3 d. The age when the moths flied affected the oviposition of adult moths. The earlier the moths started to fly after emergence, the greater the fecundity they had. The average egg production of moths flown for 24 h was less than that of non-flown moths which were of the same age. Both flight and delay in mating could advance the oviposition peak. Our study provides detailed insights in nocturnal activities and the reproductive biology of local P. gossypiella populations, which could be employed to fine-tune current pest management programs in China.

关 键 词：Pectinophora gossypiella nocturnal activities EMERGENCE MATING OVIPOSITION 

分 类 号：S433[农业科学—农业昆虫与害虫防治]