Development and sex ratio of the parasitoid Chrysocharis pentheus (Hymenoptera: Eulophidae) on the leaf miner Liriomyza trifoli (Diptera: Agromyzidae)

Fumi Sasaki, Takatoshi Ueno

研究成果: ジャーナルへの寄稿記事

抄録

Leafmining flies such as Liriomyza trifolii and L. sativae are serious invasive pests of many agricultural sind ornamental crops. Biological control with native parasitoids can be a promising approach to manage the leafminers. The larval parasitoid Chrysocharis pentheus is a common and widespread native natural enemy of Liriomyza spp. in Asia but many aspects of its biology remain unclear. Here, the laboratory culture of C. pentheus with L. trifolii was established and its development on the host was investigated. The percentage of parasitized hosts producing the parasitoid offspring was nearly 90% at 25°C. Under low temperature/short day conditions, C. pentheus developed normally though the offspring survival was lower than that under 25°C conditions. Host 3rd and 2nd instars produced the parasitoid offspring with an equal proportion. However, the percentages of female parasitoids emerging from host 3rd instars were much higher than 2nd instars. Curiously, the offspring sex ratio (% females) was low at 15°C. The female offspring took longer time to finish development than males did. The offspring parasitoids were larger when emerged from host third instars than second instars. Overall, the biology of C. pentheus is similar to other eulophid parasitoids attacking dipteran lesifminers but our results suggest that C. pentheus is useful as a biocontrol agent during low temperature conditions.

元の言語英語
ページ(範囲)133-139
ページ数7
ジャーナルJournal of the Faculty of Agriculture, Kyushu University
61
発行部数1
出版物ステータス出版済み - 2 1 2016

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Chrysocharis
Liriomyza
Agromyzidae
Hymenoptera
Eulophidae
leafminers
Sex Ratio
Diptera
sex ratio
instars
parasitoids
Liriomyza trifolii
Temperature
Liriomyza sativae
Biological Sciences
ornamental plants
natural enemies
Pakistan
biological control agents
temperature

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science

これを引用

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title = "Development and sex ratio of the parasitoid Chrysocharis pentheus (Hymenoptera: Eulophidae) on the leaf miner Liriomyza trifoli (Diptera: Agromyzidae)",
abstract = "Leafmining flies such as Liriomyza trifolii and L. sativae are serious invasive pests of many agricultural sind ornamental crops. Biological control with native parasitoids can be a promising approach to manage the leafminers. The larval parasitoid Chrysocharis pentheus is a common and widespread native natural enemy of Liriomyza spp. in Asia but many aspects of its biology remain unclear. Here, the laboratory culture of C. pentheus with L. trifolii was established and its development on the host was investigated. The percentage of parasitized hosts producing the parasitoid offspring was nearly 90{\%} at 25°C. Under low temperature/short day conditions, C. pentheus developed normally though the offspring survival was lower than that under 25°C conditions. Host 3rd and 2nd instars produced the parasitoid offspring with an equal proportion. However, the percentages of female parasitoids emerging from host 3rd instars were much higher than 2nd instars. Curiously, the offspring sex ratio ({\%} females) was low at 15°C. The female offspring took longer time to finish development than males did. The offspring parasitoids were larger when emerged from host third instars than second instars. Overall, the biology of C. pentheus is similar to other eulophid parasitoids attacking dipteran lesifminers but our results suggest that C. pentheus is useful as a biocontrol agent during low temperature conditions.",
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