Cage evaluation of augmentative biological control of Thrips palmi with Wollastoniella rotunda in winter greenhouses

Cage trials of an anthocorid predator, Wollastoniella rotunda Yasunaga et Miyamoto, as a biological control agent of Thrips palmi Karny were conducted in Fukuoka, Japan, under winter greenhouse production conditions. Females of W. rotunda were released on caged eggplants, and placed in two greenhous...

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Bibliographic Details
Published in:Entomologia experimentalis et applicata 2004, Vol.110 (1), p.73-77
Main Authors: Nakashima, Y, Uefune, M, Tagashira, E, Maeda, S, Shima, K, Nagai, K, Hirose, Y, Takagi, M
Format: Article
Language:English
Subjects:
Anthocoridae
Biological and medical sciences
Biological control
biological control agents
cage trials
Control
development
Dicyphus tamaninii
eggplants
Frankliniella occidentalis
Fundamental and applied biological sciences. Psychology
greenhouse production
Heteroptera
insect control
insect development
insect reproduction
Orius
photoperiod
Phytopathology. Animal pests. Plant and forest protection
Piocoris varius
population growth
predation
predatory insects
Protozoa. Invertebrates
reproductive diapause
Solanum melongena
Thripidae
thrips control
Thrips palmi
Thysanoptera
winter
Wollastoniella rotunda
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Summary:Cage trials of an anthocorid predator, Wollastoniella rotunda Yasunaga et Miyamoto, as a biological control agent of Thrips palmi Karny were conducted in Fukuoka, Japan, under winter greenhouse production conditions. Females of W. rotunda were released on caged eggplants, and placed in two greenhouses on 27 October. The development, population growth, and effectiveness of W. rotunda were observed until early March. Results from the cage trials showed that W. rotunda successfully developed, reproduced, and suppressed T. palmi populations under the conditions found in winter greenhouses. During the experiment, one full generation and a second generation of adult predators occurred. The T. palmi population which was exposed to predators remained at a low density throughout the trial period, but it increased dramatically on eggplants without W. rotunda. The maximum difference between predator treatments and controls was approximately 10-fold by the end of January. Wollastoniella rotunda has the potential to be an effective control agent for T. palmi on eggplant, even during the winter in temperate regions.
ISSN:0013-8703
1570-7458
1570-8703
DOI:10.1111/j.0013-8703.2004.00119.x