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

AbstractThe term ‘dead-end trap cropping’ has recently been proposed to identify a plant that is highly attractive for oviposition by an insect pest, but on which offspring of the pest cannot survive. The potential of the wild crucifer Barbarea vulgaris R. Br. to allure and serve as a dead-end trap crop for the diamondback moth Plutella xylostella (L.), an important pest of cruciferous crops worldwide, was examined in laboratory experiments. When P. xylostella adults were provided with a dual-choice of plants of B. vulgaris, and Chinese cabbage Brassica campestris (L.), in one arena, adult moths laid 2.5–6.8 times more eggs on the former than on the latter. When P. xylostella adults were provided with a dual-choice of plants of B. vulgaris and common cabbage Brassica oleracea L., adult moths laid virtually all their eggs on the former and ignored the latter. Nearly all P. xylostella eggs laid on the three species of plants hatched successfully, but nearly all individuals on plants of B. vulgaris died as neonates or early instar larvae, while 87–100% of the larvae on Chinese cabbage and common cabbage survived to pupation. Dual choice tests with a Y-tube olfactometer showed that volatiles from B. vulgaris were much more attractive to P. xylostella adults than those from common cabbage. The results demonstrate that B. vulgaris has a great potential as a dead-end trap crop for improving management of P. xylostella. Factors that may influence the feasibility of using B. vulgaris as a trap crop in the field are discussed, and ways to utilize this plant are proposed.

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Pesticide resistance in Plutella xylostella (Lepidoptera: Plutellidae) populations from Togo and Benin

International Journal of Tropical Insect Science ◽

10.1017/s1742758416000138 ◽

2016 ◽

Vol 36 (04) ◽

pp. 204-210 ◽

Cited By ~ 8

Author(s):

L. K. Agboyi ◽

G. K. Ketoh ◽

T. Martin ◽

I. A. Glitho ◽

M. Tamò

Keyword(s):

Pest Management ◽

Plutella Xylostella ◽

Selection Pressure ◽

Management Strategy ◽

Reference Strain ◽

Insect Pest ◽

Diamondback Moth ◽

The Other ◽

Pesticide Resistance ◽

Chlorpyrifos Ethyl

AbstractThe diamondback moth,Plutella xylostella(L.) is the major insect pest of cabbage crops in Togo and Benin. For control, farmers very often resort to spraying chemical insecticides at high dosages with frequent applications. Bioassays were carried out on three populations ofP. xylostella, two from Togo (Kara and Dapaong) and one from Benin (Cotonou), to assess their level of susceptibility to currently used insecticides. A reference strain ofP. xylostellafrom Matuu in Kenya was used as a control. In the laboratory, three insecticide representatives of different chemical families (deltamethrin, chlorpyrifos ethyl and spinosad) were assayed against third instar larvae ofP. xylostella. Results revealed thatP. xylostellapopulations from Dapaong, Kara and Cotonou were more resistant to deltamethrin (13 to 59-fold at LC50level, 149 to 1772-fold at LC90level) and chlorpyrifos ethyl (5 to 15-fold at LC50level, 9 to 885-fold at LC90level) than the reference strain. Spinosad was more toxic toP. xylostellapopulations than the other insecticides with LC50and LC90values less than 1 µg/ml and 15 µg/ml, respectively. However, the population from Cotonou appeared significantly more resistant to spinosad compared to the reference strain. These results are discussed in the light of developing an integrated pest management strategy for reducing the selection pressure of spinosad.

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

Bulletin of Entomological Research ◽

10.1017/s0007485310000234 ◽

2010 ◽

Vol 101 (1) ◽

pp. 99-105 ◽

Cited By ~ 10

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.

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The possibility of using Indian mustard, Brassica juncea, as a trap crop for the diamondback moth, Plutella xylostella, in South Africa

Crop Protection ◽

10.1016/s0261-2194(00)00037-5 ◽

2000 ◽

Vol 19 (7) ◽

pp. 455-460 ◽

Cited By ~ 33

Author(s):

Deidre S Charleston ◽

Rami Kfir

Keyword(s):

South Africa ◽

Brassica Juncea ◽

Plutella Xylostella ◽

Diamondback Moth ◽

Indian Mustard ◽

Trap Crop

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Nutritional indices and feeding preference of the Plutella xylostella L. (Lepidoptera: Yponomeutidae) in several Brassicaceae plants

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/948/1/012040 ◽

2021 ◽

Vol 948 (1) ◽

pp. 012040

Author(s):

P P Asmoro ◽

Dadang ◽

Pudjianto ◽

I W Winasa

Keyword(s):

Plutella Xylostella ◽

Diamondback Moth ◽

Preference Test ◽

Feeding Preference ◽

Proximate Analysis ◽

Nutritional Indices ◽

Trap Crop ◽

Insect Rearing ◽

Quality Of Food

Abstract The quantity and quality of food consumed by insects affect their growth, development; likewise, the diamondback moth Plutella xylostella (Lepidoptera: Yponomeutidae), one of the important pests of Brassicaceae plants. The study aimed to determine feed preferences and the effect of four Brassicaceae, namely cabbage (Brassica oleracea var. capitata), caisin (B. rapa), broccoli (B. oleracea var. italica), and Rorippa indica, on the nutritional indices of P. xylostella larvae. The research methods consisted of insect rearing, nutrition indices test, preference test, and proximate analysis. The results showed that the highest preference was found in R. indica (47.81%), while the other three plant species were not significantly different. Cabbage treatment showed the highest efficiency of conversion of ingested food (ECI) (8.56%), followed by R. indica, caisin, and broccoli. The same thing, cabbage treatment showed the highest efficiency of conversion of digested food (ECD) (13.02%), followed by caisin, R. indica, and broccoli. Broccoli had the highest approximate digestibility (AD) (89.38%), followed by R. indica, cabbage, and caisin. In general, the results of the nutritional indices showed that cabbage was the most suitable feed for P. xylostella larvae; in addition, with a high feeding preference, R. indica could potentially be used as a trap crop.

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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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