Hostname: page-component-848d4c4894-sjtt6 Total loading time: 0 Render date: 2024-07-07T21:05:06.236Z Has data issue: false hasContentIssue false

Parasitism, development and adult longevity of the egg parasitoid Telenomus nawai (Hymenoptera: Scelionidae) on the eggs of Spodoptera litura (Lepidoptera: Noctuidae)

Published online by Cambridge University Press:  05 April 2007

T. Fukuda
Affiliation:
Kagoshima Prefectural Institute for Agricultural Development, 2200 Ohno, Kinpou-cho, Kagoshima, 899-3401, Japan
S. Wakamura*
Affiliation:
Laboratory of Insect Behaviour, National Institute of Agrobiological Sciences, Ohwashi 1-2, Tsukuba 305-8634, Japan
N. Arakaki
Affiliation:
Okinawa Prefectural Agricultural Research Center, 820 Makabe, Itoman, Okinawa 901-0336, Japan
K. Yamagishi
Affiliation:
Meijo University, Shiogamaguchi, Tempaku-ku, Nagoya 8502, Japan
*
*Author for correspondence Fax: +81 29 838 6205 E-mail: [email protected]

Abstract

When Telenomus nawai Ashmead or Trichogramma ostriniae Pang & Chen (Hymenoptera: Trichogrammatidae) was inoculated into intact egg masses of Spodoptera litura (Fabricius) that were covered with a scale-hair layer, T. nawai emerged from 76% of the eggs, while emergence of T. ostriniae was from only 3% of the eggs. When the hair layer was removed before inoculation, the rate by the latter increased to 21%. These observations confirmed that the hair layer effectively protects S. litura egg masses from attack by T. ostriniae, and that T. nawai parasitism is more effective. In order to assess the feasibility of T. nawai as a biological control agent for S. litura, parasitism rate, development time and adult longevity were examined in the laboratory. Emergence of T. nawai was observed in more than 95% of 0- and 1-day-old separated eggs of S. litura, but the rate decreased to 60% and 0% for 2- and 3-day-old eggs, respectively. The emergence rates of T. nawai were near 95% for temperatures in a range from 25°C to 35°C, but decreased to 80% at 20°C. No parasitoids emerged at 15°C. The developmental periods decreased as temperature increased from 20°C to 35°C. The developmental threshold occurred at 13.7°C and 13.9°C, and the effective accumulative temperatures from egg to adult emergence were 149.3 and 147.1 degree-days for females and males, respectively. Mean longevity of the adult females decreased with increasing temperature; 87.0 days at 15°C and 9.5 days at 35°C. The feasibility of the use of T. nawai for controlling S. litura is discussed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Arakaki, N. (1990) Phoresy of Telenomus sp. (Hymenoptera: Scelionidae), an egg parasitoid of the tussock moth Euproctis taiwana. Journal of Ethology 8, 13.CrossRefGoogle Scholar
Arakaki, N., Noda, H. & Yamagishi, K. (2000) Wolbachia-induced parthenogenesis in the egg parasitoid Telenomus nawai. Entomologia Experimentalis et Applicata 96, 177184.CrossRefGoogle Scholar
Bayram, A., Ozcan, H. & Kornosor, S. (2005) Effect of cold storage on the performance of Telenomus busseolae Gahan (Hymenoptera: Scelionidae), an egg parasitoid of Sesamia nonagrioides (Lefebvre) (Lepidoptera: Noctuidae). Biological Control 35, 6877.CrossRefGoogle Scholar
Chabi Olaye, A., Schulthess, F., Shanower, T.G. & Bosque-Pérez, N.A. (1997) Factors influencing the developmental rates and reproductive potentials of Telenomus busseolae (Gahan) [Hym.: Scelionidae], an egg parasitoid of Sesamia calamistis Hampson (Lep.: Noctuidae). Biological Control 8, 1521.CrossRefGoogle Scholar
Fantinou, A.A., Alexandri, M.P. & Tsitsipis, J.A. (1998) Adult emergence rhythm of the egg-parasitoid Telenomus busseolae. Biocontrol 43, 141151.CrossRefGoogle Scholar
Fedde, C.F., Fedde, V.H. & Drootz, A.T. (1979) Biological control prospects of an egg parasite, Telenomus alsophilae Viereck. Current Topics in Forest Entomology, USDA Forest Service, General Technical Report WO-8, 123127.Google Scholar
Gross, P. (1993) Insect behavioral and morphological defenses against parasitoids. Annual Review of Entomology 38, 251273.Google Scholar
Hamada, R. (1992) Egg parasitoids of common cutworm, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae). Japanese Journal of Applied Entomology and Zoology 36, 258259 (in Japanese).CrossRefGoogle Scholar
Hirose, T. (1995) Resistance development to synthetic pyrethroids in the common cutworm, Spodoptera litura Fabricius. Japanese Journal of Applied Entomology and Zoology 39, 165167 (in Japanese).Google Scholar
Hitchcock, S.W. (1959) Number of fall generations of Ocencyrtus kuwanae (How.) in gypsy moth eggs. Journal of Economic Entomology 52, 764765.CrossRefGoogle Scholar
Hondô, M., Onodera, T. & Morimoto, N. (1995) Parasitoid attack on a pyramid-shaped egg mass of the peacock butterfly, Inachis io geisha (Lepidoptera: Nymphalidae). Applied Entomology and Zoology 30, 271276.CrossRefGoogle Scholar
Matsuura, H. & Naito, A. (1997) Studies on the cold-hardiness and overwintering of Spodoptera litura F. (Lepidoptera: Noctuidae) VI. Possible overwintering areas predicted from meteorological data in Japan. Applied Entomology and Zoology 32, 167177.Google Scholar
Matsuura, H., Naito, A. & Kikuchi, A. (1991) Studies on cold-hardiness and overwintering of Spodoptera litura F. (Lepidoptera: Noctuidae) III. Experimental consideration of some important factors to larval overwintering. Japanese Journal of Applied Entomology and Zoology 35, 6569 (in Japanese with English summary).Google Scholar
Miyashita, K. (1971) Effects of constant and alternating temperatures on the development of Spodoptera litura F. (Lepidoptera: Noctuidae). Applied Entomology and Zoology 6, 105111.CrossRefGoogle Scholar
Murata, M., Etoh, T., Itoyama, K. & Tojo, S. (1998) Sudden occurrence of the common cutworm, Spodoptera litura (Lepidoptera: Noctuidae) in southern Japan during the typhoon season. Applied Entomology and Zoology 33, 419427.CrossRefGoogle Scholar
Naito, A. (1987) Migration of the common cutworm, Spodoptera litura (Fabricius). Shokubutsu-boeki 41, 551554 (in Japanese).Google Scholar
Ohta, I., Miura, K. & Kobayashi, M. (1994) Effect of the scale-hair of the common cutworm egg mass on the oviposition behavior of Trichogramma chilonis Ishii (Hymenoptera: Trichogrammatidae). Applied Entomology and Zoology 29, 608609.Google Scholar
Okamoto, D. & Okada, T. (1968) Studies on the tobacco cutworm, Prodenia litura Fabricius, as an insect pest of the forage crops. Bulletin of the Chugoku National Agricultral Experiment Station E2, 111141 (in Japanese).Google Scholar
Schwarts, A. & Gerling, D. (1974) Adult biology of Telenomus remus (Hymenoptera: Scelionidae) under laboratory conditions. Entomophaga 19, 482492.Google Scholar
Wajnberg, E. & Hassan, S.A. (1994) Biological control with egg parasitoids. 286 pp. Wallingford, Oxon, CAB International.Google Scholar
Wakamura, S., Kozai, S., Kegasawa, K. & Inoue, H. (1992) Population dynamics of adult Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae): estimation of male density by using release-recapture data. Applied Entomology and Zoology 27, 18.CrossRefGoogle Scholar
Yamanaka, H., Nakasuji, F. & Kiritani, K. (1972) Life tables of the tobacco cutworm, Spodotpera litura (Lepidoptera: Noctuidae), and an evaluation of the effectiveness of natural enemies. Japanese Journal of Applied Entomology and Zoology 16, 205214 (in Japanese with English summary).CrossRefGoogle Scholar