scholarly journals Biological control of the diamondback moth, Plutella xylostella, by an entomogenous fungus, Paecilomyces fumosoroseus.

1991 ◽  
Vol 37 ◽  
pp. 149-151
Author(s):  
Tokuhiro KATO ◽  
Yoshihiro KITAUCHI ◽  
Motoharu ONO ◽  
Takashi NOGAMI
2019 ◽  
Vol 21 (1) ◽  
pp. 12-18 ◽  
Author(s):  
Marie-Louise Rugholm Simonsen ◽  
Annie Enkegaard ◽  
Camilla Nordborg Bang ◽  
Lene Sigsgaard

Laboratory experimentswere performed with adult female Anthocoris nemorum (Linnaeus) (Heteroptera: Anthocoridae) at 20°C ± 1°C, L16:D8, 60–70% RH to determine voracity and preference on cabbage aphids (Brevicoryne brassicae L.) (Hemiptera: Aphididae), diamondback moth larvae (Plutella xylostella L.) (Lepidoptera: Plutellidae) and Western flower thrips (Frankliniella occidentalis Pergande) (Thysanoptera: Thripidae) (model species for cabbage thrips (Thrips angusticeps Uzel) (Thysanoptera: Thripidae)). When offered individually, A. nemorum readily accepted all three species with no significant differences in consumption. When aphids and moth larvae were offered simultaneously, A. nemorum showed preference for the latter (numbers eaten and biomass consumed). When aphids and thrips were offered together, A. nemorum preferred thrips in terms of numbers eaten but preferred aphids in terms of biomass consumed. The results showed that A. nemorum is a voracious predator of B. brassicae, P. xylostella and F. occidentalis and can therefore be considered as a potential candidate for biological control in cabbage.


2010 ◽  
Vol 142 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Philip D. Batista ◽  
B. Andrew Keddie ◽  
Lloyd M. Dosdall ◽  
Harriet L. Harris

AbstractThe diamondback moth, Plutella xylostella (L.), is a global pest of cruciferous crops (Brassicaceae). It has developed resistance to virtually all known insecticides, and biological control has become an important management tool. In North America the parasitoid Diadegma insulare (Cresson) has been used successfully to reduce diamondback moth populations. We document the presence of the α-proteobacterial endosymbiont Wolbachia and its associated bacteriophage WO in P. xylostella and D. insulare and examine the phylogenetic relationships of Wolbachia and WO in both host species. Our results suggest that Wolbachia and WO have been horizontally transferred in this insect–parasitoid system in recent evolutionary history. Knowledge of the dynamics of Wolbachia in P. xylostella and D. insulare may be an important factor in future control of this pest in the field.


2018 ◽  
Author(s):  
Tina Dancau

Diamondback moth, Plutella xylostella Linnaeus (Lepidoptera: Plutellidae) is a globally distributed pest on brassicaceous crops. This study aimed to follow up with aspects of earlier research, mainly to revisit the potential for overwintering of diamondback moth in the Ottawa area, to investigate present day population dynamics using a life-table approach and to use next generation sequencing to describe the diamondback moth microbiome. A review of the literature has reaffirmed that diamondback moth may not be capable of overwintering in Ottawa with populations likely migrant-driven. The population dynamics and parasitoid community appear to be unaltered after 65 years. The microbiome of diamondback moth larvae was dominated by Enterococcaceae, a family of bacteria hypothesized to aid in resistance and detoxification. This can provide opportunities for the introduction of new biological control agents and tools for diamondback moth management in the future.


2005 ◽  
Vol 15 (8) ◽  
pp. 763-789 ◽  
Author(s):  
Muhammad Sarfraz ◽  
Andrew B Keddie ◽  
Lloyd M Dosdall

2008 ◽  
Vol 18 (8) ◽  
pp. 753-765 ◽  
Author(s):  
Ruo-Xia Chen ◽  
Feng Zhang ◽  
Wei-Guo Huangfu ◽  
Hong-Yan Yao ◽  
Jin-Bo Zhou ◽  
...  

2019 ◽  
Vol 72 ◽  
pp. 253-259 ◽  
Author(s):  
Michal Kuchár ◽  
Travis R. Glare ◽  
John G. Hampton ◽  
Ian A. Dickie ◽  
Mary C. Christey

Plutella xylostella (diamondback moth) is a prominent pest of brassicas which is now resistant to most insecticides. Despite years of research, the range of available products used in biological control of diamondback moth is still somewhat limited. We isolated putative endophytic fungi from New Zealand cabbage plants to search for unique biological control agents of diamondback moth larvae. The larvae were fed leaf discs from commercially grown cabbage covered in spores from endophytic fungal isolates to test the insecticidal properties of these fungi. Twenty of the 52 fungal isolates tested failed to kill any diamondback moth larvae. However, three isolates of Lecanicillium muscarium induced mortality greater than 80%. While these isolates have potential for use in biological control applications, further research into propagation, formulation, and method, rate and timing of application is needed.


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