Oviposition site selection by the diamondback moth,Plutella xylostella (L.) (Lepidoptera: Plutellidae)

Justus, Kristine A.; Mitchell, B. K.

doi:10.1007/bf02208976

Cited by 54 publications

(56 citation statements)

References 11 publications

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“…Furthermore, volatile chemicals produced by the hydrolysis of glucosinolates are also known to be involved in host plant location by crucifer specialists (Gupta and Thorsteinson, 1960;Renwick and Radke, 1990;Pivnick et al, 1994;Marazzi et al, 2004). Allyl isothiocyanates (also known as mustard oils), the hydrolysis products of mainly aliphatic glucosinolates, are feeding attractants for DBM and also stimulate/enhance oviposition (Reed et al, 1989;Justus and Mitchell, 1996;Hughes et al, 1997;Griffiths et al, 2001;Renwick et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Development of bisexual attractants for diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae) based on sex pheromone and host volatiles

Dai

Deng

2008

Appl. Entomol. Zool.

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Males and females of the diamondback moth (DBM), Plutella xylostella (L.) were investigated for electroantennogram responses to 13 volatiles from Brassicaceae in the laboratory, and showed stronger responses to benzaldehyde, phenylacetaldehyde, allyl isothiocyanate, (Z)-3-hexen-1-ol and (Z)-3-hexenyl acetate than to monoterpenic volatiles. In field trapping experiments, traps baited with the synthetic female sex pheromone of DBMϩ(Z)-3-hexenyl acetate or pheromoneϩ(Z)-3-hexen-1-ol significantly enhanced male catches in three brassicaceous crops, compared with traps baited with synthetic sex pheromone alone. Traps baited with pheromoneϩ(Z)-3-hexenyl acetate and pheromoneϩ(Z)-3-hexenyl acetateϩ(Z)-3-hexen-1-olϩallyl isothiocyanate enhanced male catches by 46.4% and 75.0%, respectively, compared with synthetic sex pheromone alone, and caught an average of 15.8Ϯ2.2 and 18.6Ϯ2.7 females/trap/day, respectively, during the whole trapping period. Results indicate that traps baited with pheromoneϩ(Z)-3-hexenyl acetateϩ(Z)-3-hexen-1-olϩallyl isothiocyanate have a stronger attraction to both male and female DBM and may provide more effective tools for monitoring and controlling this insect pest.

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Section: Discussionmentioning

confidence: 99%

Development of bisexual attractants for diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae) based on sex pheromone and host volatiles

Dai

Deng

2008

Appl. Entomol. Zool.

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“…Other leaf traits have also been implicated in feeding and oviposition preference, including leaf water content, defensive compounds such as phenolic glycosides, and amino acids (Behmer and Joern 1993;Bernays and Chapman 1994;Kolehmainen et al 1995;Justus and Mitchell 1996). We found that salicortin concentration was lowest in the low nutrient-flooded (62.35 mg/g) and highest in the low nutrient-field capacity (77.31 mg/g) treatment in experiment 1 (Performance), while preference for these same two treatments was nearly indistinguishable in experiment 2 (Preference).…”

Section: Do Adult Beetles Choose High-quality Hosts?mentioning

confidence: 99%

Preference and performance of a willow-feeding leaf beetle: soil nutrient and flooding effects on host quality

2003

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The distribution and abundance of herbivores on plants growing under different environmental conditions may depend upon preference and/or performance. Soil nutrients and water availability are key determinants of herbivore distribution, as both influence plant growth and tissue quality. However, the effects of water on plant quality may depend upon the availability of nutrients and vice versa. Surprisingly few studies have examined the interactions between the two. We investigated the effects of soil nutrient and water availability on (1) the growth and chemistry of the silky willow (Salix sericea Marshall), and (2) the preference and performance of the imported willow leaf beetle (Plagiodera versicolora Laichartig). We conducted two common garden experiments using a similar 2x2 fully factorial design with two levels of soil nutrients (low, high) and two levels of water availability (field capacity, flooded). In the first experiment (larval performance), larval development time and pupal weight were not influenced by nutrient or water availability to the plant. This occurred despite the fact that plants in the high nutrient treatments had higher protein concentration and lower foliar concentrations of the phenolic glycoside 2'-cinnamoylsalicortin. In the second experiment (adult preference), we caged four plants (one from each treatment) and released beetles into cages. We found that plant growth and leaf protein depended upon the interaction between nutrient and water availability. Plant growth was greatest in the high nutrient-field capacity treatment and leaf protein was greatest in the high nutrient-flooded treatment. In contrast, adults settled and oviposited preferentially on the high nutrient treatment under flooded conditions, but we found no evidence of interactions between nutrients and water on preference. Thus, at least under flooded conditions nutrients affect adult preference. We also found that foliar protein was correlated positively with adult oviposition preference and per capita egg production. Our results, then, suggest that soil nutrients can influence adult preference, and that adults choose high-quality hosts (high protein) that promote egg production.

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“…Oligophagous insects such as diamondback moth larvae accept as food the leaves of only a limited number of plant species. The actual selection of the hostplant is performed by the ovipositing female (reviewed in Marazzi & Städler, in preparation), as the mobility and energy reserves of the first instars are limited and the opportunities to find a suitable host on their own are minimal (Justus & Mitchell 1996).…”

Section: Introductionmentioning

confidence: 99%

“…In the present work, S was used as a variable environmental factor, since this mineral is clearly involved in the production of secondary plant metabolites that have key roles as attractants, feeding (Renwick 2002) and oviposition stimulants (Justus & Mitchell 1996;Hughes et al 1997;Spencer et al 1999) for Plutella xylostella. Gupta and Thorsteinson (1960a) first studied the effect of S mineral nutrition in two Brassica species (B. alba and B. nigra).…”

Section: Introductionmentioning

confidence: 99%

Secondary metabolites of the leaf surface affected by sulphur fertilisation and perceived by the diamondback moth

Marazzi¹,

Patrian²,

Städler³

2004

Chemoecology

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Summary. Oilseed rape, Brassica napus L. (cv Express), plants were grown under three different sulphur regimes: sulphur-free (S 0 ), normal sulphur (S n , normal field concentration) and a sulphur-rich (S + , 2 × concentration of S n ). We performed dual choice oviposition assays with the diamondback moth, Plutella xylostella, using real plants and, for the first time with this insect, artificial leaves sprayed with methanolic leaf-surface extracts. The results mirrored those of a separate study of preferences for whole plants. Females laid more eggs on surrogate leaves that were treated with S n extracts than on S 0 plants, while only a slight, not significant, difference was observed between extracts of normal and sulphur-rich plants. This shows that chemical compounds on the leaf surface mediate the oviposition preference and that the female insect can perceive the quality of the host-plants in terms of their fertilisation status.Since leaf volatiles are known to be oviposition stimulants, we investigated the effects of leaf-surface extracts on insect olfactory responses using electroantennograms (EAGs). In agreement with the behavioural data, we found that extracts of sulphur-treated plants yielded higher EAG amplitudes than the S 0 extracts. Since the leaf content of the volatiles isothiocyanates is influenced by sulphur nutrition, we analysed the extracts for these compounds. Above the detection threshold of our GC-MS system, no isothiocyanates were found. Thus, other compounds present in the surface extracts must be perceived by the antenna.However, the HPLC analysis revealed 11 different glucosinolates. Progoitrin (2-Hydroxy-3-butenyl) and gluconapoleiferin (2-Hydroxy-4-pentenyl), which belong to the hydroxy-alkene class of glucosinolates, were the most abundant compounds. The total glucosinolate content sharply increased from S 0 to S n plants, whereas it was slightly lower in S n versus S + plants. Since it is known that glucosinolates can stimulate oviposition, it seems likely that the increased content we observed was influencing the insect preference in this study too.

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Oviposition site selection by the diamondback moth,Plutella xylostella (L.) (Lepidoptera: Plutellidae)

Cited by 54 publications

References 11 publications

Development of bisexual attractants for diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae) based on sex pheromone and host volatiles

Development of bisexual attractants for diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae) based on sex pheromone and host volatiles

Preference and performance of a willow-feeding leaf beetle: soil nutrient and flooding effects on host quality

Secondary metabolites of the leaf surface affected by sulphur fertilisation and perceived by the diamondback moth

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