Identification of olfactory cues used in host-plant finding by diamondback moth,Plutella xylostella (Lepidoptera: Plutellidae)

1994 ◽  
Vol 20 (7) ◽  
pp. 1407-1427 ◽  
Author(s):  
Kenneth A. Pivnick ◽  
Blair J. Jarvis ◽  
George P. Slater
Keyword(s):  
Host Plant ◽  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Olfactory Cues

Oviposition of diamondback moth in the presence and absence of a novel host plant

2010 ◽  
Vol 101 (1) ◽  
pp. 99-105 ◽  
Author(s):  
K. Henniges-Janssen ◽  
G. Schöfl ◽  
A. Reineke ◽  
D.G. Heckel ◽  
A.T. Groot
Keyword(s):  
Host Range ◽  
Larval Development ◽  
Host Plant ◽  
Plutella Xylostella ◽  
Range Expansion ◽  
Host Plants ◽  
Diamondback Moth ◽  
Host Range Expansion ◽  
Cabbage Plant ◽  
Novel Host

AbstractThe diamondback moth (DBM, Plutella xylostella L. (Lepidoptera: Plutellidae)) consumes a wide variety of brassicaceous host plants and is a common pest of crucifer crops worldwide. A highly unusual infestation of a sugar pea crop was recorded in Kenya in 1999, which persisted for two consecutive years. A strain (DBM-P) from this population was established in the laboratory and is the only one of several strains tested that can complete larval development on sugar peas. The oviposition acceptance and preference of the DBM-P strain was assessed in the presence of cabbage plants, sugar pea plants or both, in comparison to another strain (DBM-Cj) that was collected from cabbage and is unable to grow on pea plants. As expected, DBM-Cj females preferred to oviposit on cabbage plants. Surprisingly, DBM-P females also laid most eggs on cabbage and very few on peas. However, they laid significantly more eggs on the cabbage plant when pea plants were present. Our findings suggest that DBM-P manifested the initial stages of an evolutionary host range expansion, which is incomplete due to lack of oviposition fidelity on pea plants.

The diamondback moth, Plutella xylostella, specifically inactivates Mustard Trypsin Inhibitor 2 (MTI2) to overcome host plant defence

2009 ◽  
Vol 39 (1) ◽  
pp. 55-61 ◽  
Author(s):  
Limei Yang ◽  
Zhiyuan Fang ◽  
Marcel Dicke ◽  
Joop J.A. van Loon ◽  
Maarten A. Jongsma
Keyword(s):  
Host Plant ◽  
Trypsin Inhibitor ◽  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Plant Defence

scholarly journals Role of Saponins in Plant Defense against the Diamondback Moth, Plutella xylostella (L.)

2017 ◽  
Author(s):  
Mubasher Hussain ◽  
Muhammad Qasim ◽  
Bamisope Steve Bamisile ◽  
Liande Wang
Keyword(s):  
Secondary Metabolites ◽  
Plant Defense ◽  
Host Plant ◽  
Plutella Xylostella ◽  
Defense Mechanism ◽  
Diamondback Moth ◽  
Plant Secondary Metabolites ◽  
Feeding Deterrents ◽  
Triterpenoid Saponins ◽  
Saponin Content

The diamondback moth (DBM), Plutella xylostella L. (Lepidoptera: Plutellidae) is very destructive crucifers specialized pest that has resulted in significant crop losses worldwide. The pest is well attracted to glucosinolate-containing crucifers such as; Barbarea vulgaris (Brassicaceae), and generally to other plants in the genus Barbarea. B. vulgaris on their part, build up resistance against DBM and other herbivorous insects using glucosinolates; that are plant secondary metabolites used in plant defense–contained only in plants of the order Brassicales. Aside glucosinolates, plants in this genus Barbarea (Brassicaceae) also contain saponins; which is toxic to insects and act as feeding deterrents for plant herbivores, most importantly, DBM, as it was found to prevent the survival of DBM larvae on the plant. Saponins are plant secondary metabolites have been established in higher concentrations in younger in contrast to older leaves within the same plant. Previous studies have found a relationship between ontogenetical changes in the host plant’s saponin content and attraction/resistance to P. xylostella. The younger leaves recorded higher concentrations of glucosinolates and saponins, which naturally attracts the plant herbivores. DBM was reported to have evolved mechanisms to avoid the toxicity of the former. The plant-herbivore had adapted glucosinolates for host plant recognition, feeding and oviposition stimulants. Despite the adaptation for oviposition by P. xylostella adults, larvae of the insect cannot survive on the same plant. An example is in some varieties of B. vulgaris. The triterpenoid saponins which act as feeding deterrents in larvae are responsible for this direct defense mechanism against P. xylostella. In the future, trials by plant breeders could aim at transferring this insect resistance to other crops. The previous trials had limited because of lack of knowledge on the biosynthetic pathways and regulatory networks of saponins. Herein, we discussed exclusively; saponins mediated plant defense mechanisms against the DBM.

Multitrophic interactions and management of the diamondback moth: a review

1996 ◽  
Vol 86 (3) ◽  
pp. 205-216 ◽  
Author(s):  
Robert H.J. Verkerk ◽  
Denis J. Wright
Keyword(s):  
East Asia ◽  
Host Plant ◽  
Trophic Interactions ◽  
Plutella Xylostella ◽  
Natural Enemy ◽  
Diamondback Moth ◽  
South East Asia ◽  
Economic Significance ◽  
The World ◽  
Plant Herbivore

AbstractThe diamondback moth,Plutella xylostellaLinnaeus (Yponomeutidae), remains one of the most serious pests of crucifers in many parts of the world, particularly in South East Asia. This paper reviews the wide array of strategies which have been used in attempts to controlP. xylostellaover the last 40 years and consolidates the fragmented and sometimes hard-to-access literature on two and three level trophic interactions (e.g. host plant—herbivore, herbivore—natural enemy and host plant-herbivore—natural enemy interactions) involving the pest. Special reference is made to studies and examples from South East Asia, and in particular Malaysia, whereP. xylostellaand its primary parasitoids have been well studied owing to the great economic significance of the pest in this region. It is suggested that a multitrophic approach to research may assist in the development of more sustainable methods for the management ofP. xylostellaand overcome some of the problems inherent with insecticide-intensive methods.

A new pest management strategy: transforming a non‐host plant into a dead‐end trap crop for the diamondback moth Plutella xylostella L.

2020 ◽  
Author(s):  
Jing‐Yun Zhu ◽  
Zhong‐Wen Xiang ◽  
Shi‐Ze Zhang ◽  
Zhi‐Wei Kang ◽  
Yong‐Liang Fan ◽  
...  
Keyword(s):  
Pest Management ◽  
Host Plant ◽  
Plutella Xylostella ◽  
Management Strategy ◽  
Diamondback Moth ◽  
Trap Crop ◽  
Dead End ◽  
New Pest

Interspecific competition between Diadegma semiclausum Hellen and Diadegma mollipla (Holmgren), parasitoids of the diamondback moth, Plutella xylostella (L), feeding on a new host plant

2007 ◽  
Vol 98 (2) ◽  
pp. 135-143 ◽  
Author(s):  
A. Rossbach ◽  
B. Löhr ◽  
S. Vidal
Keyword(s):  
Host Plant ◽  
Interspecific Competition ◽  
Plutella Xylostella ◽  
Host Plants ◽  
Diamondback Moth ◽  
Time Interval ◽  
Pest Species ◽  
Progeny Production ◽  
Parasitoid Species ◽  
New Host

AbstractInterspecific competition between an introduced parasitoid species aimed at controlling a herbivorous pest species and a native parasitoid parasitising the same host may influence the success of classical biological control programmes. In Kenya, interspecific competition between an introduced and a local parasitoid on two diamondback moth populations (DBM, Plutella xylostella) was investigated on two different host plants. We tested simultaneous and delayed competition of the local parasitoid Diadegma mollipla Holmgren and its exotic congenus D. semiclausum Hellen on a newly aquired DBM host plant (snowpea) in the laboratory. Under simultaneous competition, D. mollipla produced more progeny than D. semiclausum on snowpea. A head start of D. Mollipla, of four and eight hours before its congenus was introduced, resulted in a similar number of progeny of both species. In delayed competition (time intervals of 24 h, 48 h and 72 h), progeny production was similar for both parasitoids when the time interval was 24 h, irrespective of which species parasitized first. More progeny was produced by the species which attacked first, when the time interval was greater than 24 h, although it was only significant at 72 h. Competitive abilites of both parasitoids on the new host plant differed largely between laboratory and semi-field conditions. The influence of two host plants (snowpea and cabbage) on competition was studied in the greenhouse with different host and parasitoid densities. Parasitism levels of D. semiclausum were significantly higher than those of D. mollipla, regardless of host plant, host and parasitoid densities, but progeny production of D. mollipla on snowpea was still slightly higher than on cabbage. As compared to the confinement of parasitoids and larvae to small containers, D. mollipla parasitized very few larvae in the cages. Competitive ability of the two parasitoid species tested was influenced both by the density of the searching females and by parameters related to either the host plant and/or the herbivorous hosts.

The roles of olfaction and vision in host-plant finding by the diamondback moth, Plutella xylostella

2006 ◽  
Vol 31 (2) ◽  
pp. 134-145 ◽  
Author(s):  
Aude Couty ◽  
Helmut Van Emden ◽  
Joe N. Perry ◽  
JIM Hardie ◽  
John A. Pickett ◽  
...  
Keyword(s):  
Host Plant ◽  
Plutella Xylostella ◽  
Diamondback Moth
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