Parasitism by Cotesia plutellae inhibits imaginal wing disc development of diamondback moth, Plutella xylostella

2008 ◽  
Vol 11 (2) ◽  
pp. 83-87
Author(s):  
Sungwoo Bae ◽  
Yonggyun Kim
Keyword(s):  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Wing Disc ◽  
Cotesia Plutellae ◽  
Imaginal Wing Disc

Seasonal abundance of the parasitoid complex associated with the diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae) in Hangzhou, China

2000 ◽  
Vol 90 (3) ◽  
pp. 221-231 ◽  
Author(s):  
Shu-Sheng Liu ◽  
Xin-Geng Wang ◽  
Shi-Jian Guo ◽  
Jun-Hua He ◽  
Zu-Hua Shi
Keyword(s):  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Pupal Stage ◽  
Seasonal Abundance ◽  
Vegetable Crops ◽  
Cotesia Plutellae ◽  
Pupal Parasitoids ◽  
Parasitism Rates ◽  
Brassica Vegetable ◽  
June July

AbstractAn investigation of insect parasitoids of the diamondback moth, Plutella xylostella(Linnaeus), in brassica vegetable crops in the suburbs of Hangzhou was conducted during five periods from 1989 to 1997. Eight species of primary parasitoids were recorded: Trichogramma chilonis Ishii, Cotesia plutellae Kurdjumov, Microplitis sp., Oomyzus sokolowskii Kurdjumov, Diadromus collaris(Gravenhorst), Itoplectis naranyae (Ashmead), Exochus sp. and Brachymeria excarinata Gahan. Seven species of hyperparasitoids were also collected. Rates of parasitism of eggs of P. xylostella were usually very low. However, rates of parasitism of larvae and pupae were substantial and showed two peaks each year, around June–July and September–November respectively. Rates of parasitism during peaks were usually 10–60% and reached over 80% on a few occasions. Cotesia plutellae, O. sokolowskii and D. collaris were the major larval, larval-pupal and pupal parasitoids respectively. In the field, C. plutellae was active throughout the year. Oomyzus sokolowskii was active from May to October, entered a quiescent pupal stage in October–November to overwinter and did not emerge until next April–May. Diadromus collariswas recorded from April to July and October. Rates of parasitism of P. xylostellain radish and mustard fields were usually higher than those in cabbage and Chinese cabbage fields in the same locality. Negative correlations of parasitism rates between C. plutellae and O. sokolowskii indicate a competitive relationship for host larvae between these two larval parasitoids.

Two Pseudogenes of Cotesia plutellae Bracovirus in Parasitized Diamondback Moth, Plutella xylostella

2007 ◽  
Vol 10 (2) ◽  
pp. 121-129 ◽  
Author(s):  
Seungbaeck Song ◽  
Jae Young Choi ◽  
Yeon Ho Je ◽  
Yonggyun Kim
Keyword(s):  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Cotesia Plutellae
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