Journal
JOURNAL OF ASIA-PACIFIC ENTOMOLOGY
Volume 14, Issue 3, Pages 327-333Publisher
KOREAN SOC APPLIED ENTOMOLOGY
DOI: 10.1016/j.aspen.2011.03.010
Keywords
Monochamus saltuarius; Pinus koraiensis; Follicle size; Twig age; Fructose; Adult feeding behavior
Categories
Funding
- TDPAF/iPET [110003-03-1-HD110]
- Ministry of Education and Human Resources Development
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This study was conducted to investigate the longevity, reproduction and ovarian development of M. saltuarias adults feeding on Pinus koraiensis twigs of three different age classes (current-year, 1-year and 2-year). Longevity and fecundity of female adults decreased with increasing twig age class (58.4, 41.9 and 35.9 days, respectively, for longevity and 43.0, 13.2 and 6.6 eggs, respectively, for fecundity). In ovarian development, the average follicle size after 1 week of feeding on current-year twigs was 3.1-3.5 times greater than those of beetles fed 1- and 2-year-old twigs. After 2 weeks of feeding, follicle size was 2.3-2.4 times greater than those of beetles fed 1- and 2-year-old twigs. These results showed that current-year twigs of P. koraiensis increase longevity and reproduction of M. saltuarius. By analyzing sugars using high performance liquid chromatography (HPLC), the quantity of fructose was found to be highest in current-year twigs and lowest in 2-year-old twigs. A sugar feeding bioassay indicated that fructose was preferred by M. saltuarius. Therefore, fructose is important to adult feeding and ovariole development in M. saltuarius. (C) Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society, 2011. Published by Elsevier B.V. All rights reserved.
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