Comparative insecticide resistance of New Zealand and North American populations of diamondback moth,Plutella xylostella(Lepidoptera: Piuteiiidae)

AbstractThe species of Diadegma that attack Plutella xylostella(Linnaeus) are revised. Following a morphometric study involving principal components and discriminant analyses, seven distinct morphospecies are recognized. One species is described as new: D. novaezealandiae from New Zealand. Diadegma mollipla(Holmgren) is the name for the species from sub-Saharan Africa and some Indian Ocean and South Atlantic islands. Diadegma varuna Gupta syn. nov. and D. niponicaKusigemati syn. nov. are both synonymized with D. fenestrale(Holmgren). Diadegma xylostellae Kusigemati is strongly presumed to be a synonym of D. semiclausum (Hellén). An illustrated identification key is provided and each species is described in a standard way.

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DNA Sequencing Reveals the Midgut Microbiota of Diamondback Moth, Plutella xylostella (L.) and a Possible Relationship with Insecticide Resistance

PLoS ONE ◽

10.1371/journal.pone.0068852 ◽

2013 ◽

Vol 8 (7) ◽

pp. e68852 ◽

Cited By ~ 62

Author(s):

Xiaofeng Xia ◽

Dandan Zheng ◽

Huanzi Zhong ◽

Bingcai Qin ◽

Geoff M. Gurr ◽

...

Keyword(s):

Dna Sequencing ◽

Insecticide Resistance ◽

Plutella Xylostella ◽

Diamondback Moth

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Update on diamondback moth (Plutella xylostella) insecticide resistance and the vegetable brassica insecticide management strategy

New Zealand Plant Protection ◽

10.30843/nzpp.2012.65.5397 ◽

2012 ◽

Vol 65 ◽

pp. 114-119

Author(s):

G.P. Walker ◽

S.I. Davis ◽

F.H. MacDonald ◽

T.J.B. Herman

Keyword(s):

Insecticide Resistance ◽

Plutella Xylostella ◽

Mode Of Action ◽

Management Strategy ◽

Diamondback Moth ◽

Resistance Management ◽

Foliar Spray ◽

Insecticide Resistance Management ◽

Rotation Strategy ◽

Vegetable Brassica

The susceptibility of field populations of diamondback moth (DBM) Plutella xylostella to lambdacyhalothrin methamidophos spinosad and indoxacarb collected from the four major brassicagrowing regions has been assessed approximately every 2 years from 1997 to 2008 Recent results indicate that populations from all regions have increased their resistance to lambdacyhalothrin but there is little or no resistance to spinosad and indoxacarb and reduced resistance to methamidophos This mitigation of resistance in DBM is attributed to in particular a decadelong regional adherence by the vegetable industry of rotating spinosad with indoxacarb in a twowindowsperyear rotation strategy The original insecticide resistance management rotation strategy had to be updated to incorporate chlorantraniliprole registered as a foliar spray and recently a mixture of chlorantraniliprole and thiamethoxam as a seedling drench Seedling drenches have been removed from the twowindow strategy used for foliar sprays with drenches now aligned with periods targeting the highest pest pressure allowing mode of action (MoA)free periods and rotation of different MoA insecticides to mitigate any resistance buildup in DBM

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