Insensitive Acetylcholine Receptor Conferring Resistance of Plutella xylostella to Nereistoxin Insecticides

Cheng, Lijun; Yu, Guang; Chen, Zi-hao; Li, Zhong-yin

doi:10.1016/s1671-2927(08)60122-4

Cited by 12 publications

(9 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Later, Ullyett (1947) proposed that weeds should be preserved in cruciferous fields to support natural enemies of the diamondback moth (DBM), Plutella xylostella (L.) (Lepidoptera: Plutellidae), which is considered the most destructive pest of crucifers worldwide. More recently, farmers have routinely applied insecticides to control P. xylostella, but this can be very expensive (França and Medeiros 1998;Haseeb, Liu, and Jones 2004;Cheng, Guang, Zi-hao, and Zhong-yin 2008). Moreover, the use of broad spectrum insecticides can result in pest resurgence due to increased insecticide resistance, and has also proved to be detrimental to biological control agents (Nemoto 1986;Metcalf 1994).…”

Section: Introductionmentioning

confidence: 99%

Can cruciferous agroecosystems grown under variable conditions influence biological control ofPlutella xylostella(Lepidoptera: Plutellidae)?

Silva-Torres

Torres

Barros

2011

Biocontrol Science and Technology

View full text Add to dashboard Cite

Determining the most efficacious method for the release of parasitoids is challenging, depending on the crop area to be covered and the environmental conditions created by the agroecosystem. Release of the parasitoid Oomyzus sokolowskii (Kurdjumov) and the effect of crucifers cropping systems were investigated in relation to diamondback moth (DBM), Plutella xylostella (L.) control. First, we investigated the dispersal ability of O. sokolowskii. Kale plants were infested with 20, 25, 30 and 35 DBM larvae each, at distances of 0, 8, 16, and 24 m, from a central release point in the field. Second, the effect of a multiple host plant system composed of cabbage, broccoli and Napa cabbage on the parasitism capacity of O. sokolowskii was investigated. Lastly, the parasitism capacity of O. sokolowskii and the colonization rate of DBM were investigated comparing cropping systems composed of either a monoculture of cabbage, or three different intercropping systems: cabbage and green onion, cabbage and cilantro, and cabbage, green onion and cilantro. For all experiments, selected plants were infested with sentinel DBM larvae and caged with mesh that allowed parasitoids to search inside the cages while reducing the impact of opportunists on DBM larvae. Results showed that parasitoids were able to disperse and parasitize P. xylostella at similar rates throughout a field of kale up to 24 m from the release point. Intercropping of cabbages with other crop plants did not negatively affect parasitism rates of O. sokolowskii, which makes it promising for DBM biological control; however it did not interfere with cabbage colonization by DBM.

show abstract

Section: Introductionmentioning

confidence: 99%

Can cruciferous agroecosystems grown under variable conditions influence biological control ofPlutella xylostella(Lepidoptera: Plutellidae)?

Silva-Torres

Torres

Barros

2011

Biocontrol Science and Technology

View full text Add to dashboard Cite

show abstract

“…The estimated average control cost for DBM is greater than one billion dollars per year (Talekar 1992, Haseeb et al 2004. Intensive insecticide use continues to be the primary method of control against P. xylostella (Barros et al 1993, França & Medeiros 1998, Cheng et al 2008. As a result of biological and behavioral traits of DBM (e.g., great ability to disperse, high fecundity and short life cycle) and conditions offered by the environmental sites (e.g., availability of various crucifers in neighbor fields and throughout the year), P. xylostella has been considered as difficult to control.…”

mentioning

confidence: 99%

New records of natural enemies of Plutella xylostella (L.) (Lepidoptera: Plutellidae) in Pernambuco, Brazil

Silva-Torres¹,

Pontes²,

Torres³

et al. 2010

Neotrop. entomol.

View full text Add to dashboard Cite

-We report the occurrence of natural enemies of Plutella xylostela (L.) in organically farmed kale in Pernambuco, Brazil. Seven natural enemies were observed parasitizing or preying on larvae and pupae of P. xylostella -three parasitoids: Cotesia plutellae Kurdjumov (Hym.: Braconidae), Conura pseudofulvovariegata (Becker) (Hym.: Chalcididae) and Tetrastichus howardi (Olliff) (Hym.: Eulophidae), and four predators: Cheiracanthium inclusum (Hentz) (Araneae: Miturgidae), Pheidole sp.Westwood (Hym.: Formicidae), nymphs and adults of Podisus nigrispinus (Dallas) (Hem.: Pentatomidae), and one unidentified species of solitary wasp. Beyond recording these natural enemies, data on predation of P. xylostella larvae in the field and laboratory by C. inclusum are presented.KEY WORDS: Natural biological control, Cotesia, Conura, Tetrastichus, Cheiracanthium, Podisus, PheidoleThe diamondback moth (DBM), Plutella xylostella (L.), is the most destructive pest of crucifers worldwide. The estimated average control cost for DBM is greater than one billion dollars per year (Talekar 1992, Haseeb et al 2004. Intensive insecticide use continues to be the primary method of control against P. xylostella (Barros et al 1993, França & Medeiros 1998, Cheng et al 2008. As a result of biological and behavioral traits of DBM (e.g., great ability to disperse, high fecundity and short life cycle) and conditions offered by the environmental sites (e.g., availability of various crucifers in neighbor fields and throughout the year), P. xylostella has been considered as difficult to control. Thus, use of biological control methods is important for the management of this pest, and augmentation of biological control agents already present is prominent because it has minimum or no cost to growers.In this work we report natural enemies of P. xylostella on an organic farm of kale crop (~90 days old) located in Chã Grande, Pernambuco State, Brazil (08 o 15'14.4''S and 35 o 30'0.3''W with an altitude of 505 m). To sample the natural enemies we exposed sentinel 3 rd -instar DBM larvae at the rate of 30 larvae per kale plant in the field. The exposure system consisted of 15 plants distributed along two transects marked in the study area. Selected plants were eight meters apart and distributed throughout the kale field. Eight out of 15 plants monitored were confined using cylindrical cages (50 cm diameter x 80 cm high) made with 4 mm mesh nylon fastened with wood sticks. Three days after infestation, all remaining DBM larvae were collected, and held for rearing until either an adult DBM or a parasitoid emerged. Predators observed directly preying on larvae or pupae in the field were noted.Because there were significantly fewer P. xylostella larvae recovered in the uncaged plants, and the caged plants excluded spiders and predatory wasps, a study was conducted in the field and in the laboratory to measure the predation rates of the spider species on DBM larvae. The spider species found preying upon DBM larvae in the field was identified as Cheiracanth...

show abstract

“…Nereistoxin (NTX) is a natural toxic substance originating from a marine annelid worm, Lumbriconereis heteropoda, and it has strong insecticidal activity through blocking of the nicotinic acetylcholine receptor [1][2][3][4]. Several commercial insecticides such as cartap, bensultap, thiocyclam and thiosultap ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Advanced analytical method of nereistoxin using mixed-mode cationic exchange solid-phase extraction and GC/MS

Park

Choe

Lee

et al. 2015

Forensic Science International

View full text Add to dashboard Cite

Insensitive Acetylcholine Receptor Conferring Resistance of Plutella xylostella to Nereistoxin Insecticides

Cited by 12 publications

References 9 publications

Can cruciferous agroecosystems grown under variable conditions influence biological control ofPlutella xylostella(Lepidoptera: Plutellidae)?

Can cruciferous agroecosystems grown under variable conditions influence biological control ofPlutella xylostella(Lepidoptera: Plutellidae)?

New records of natural enemies of Plutella xylostella (L.) (Lepidoptera: Plutellidae) in Pernambuco, Brazil

Advanced analytical method of nereistoxin using mixed-mode cationic exchange solid-phase extraction and GC/MS

Contact Info

Product

Resources

About