DIAMONDBACK MOTH OVIPOSITION PREFERENCE ON CABBAGE

2019 ◽  
Vol 3 (2) ◽  
pp. 1
Author(s):  
Wagner Farias Barbosa ◽  
Luis Moreira de Araujo Junior ◽  
Alixelhe Pacheco Damascena ◽  
Victor Luiz Souza Lima ◽  
Dirceu Pratissoli
Keyword(s):  
Brassica Oleracea ◽  
Plant Development ◽  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Oviposition Preference ◽  
Development Stage ◽  
Deposition Behavior ◽  
Egg Deposition ◽  
Cabbage Plant

The present study about the oviposition preference of the diamondback moth, <em>Plutella xylostella</em> (Linnaeus, 1758) (Lepidoptera: Plutellidae), can contribute to the determination of the location and time of release of parasitoids and predators or application of insecticides or bio-insecticides in the cabbage culture, <em>Brassica oleracea</em> Capitata group (Linnaeus, 1758) (Brassicales: Brassicaceae). Thus, aimed to this study was to determine the oviposition pattern of diamondback moth on three leaves locations and age of cabbage plants. The locations of the evaluated leaves were external, intermediate and internal. The evaluated plant ages were 20, 40, 60 and 80 days after transplanting. The eggs deposition behavior by diamondback moth was influenced by the development stage of the cabbage plant <em>F</em><sub>6, 96</sub> = 438.21; <em>p</em> = 0.05). The oviposition preference on the external leaves occurred on plants with 20 days old, on the intermediate leaves at 40 days and on the internal leaves at 60 and 80 days. The age with greater oviposition was at 40 days on the external and intermediate leaves; and at 60 days on the internal leaves. Therefore, the behavior of egg deposition of the diamondback moth was altered as the cabbage plant development.

Genetic transformation of cabbage (Brassica oleracea var. capitata) with synthetic cry 1F gene to impart resistant to diamondback moth (Plutella xylostella)

2013 ◽  
Vol 15 (01) ◽  
pp. 3-9
Author(s):  
H.M. Mahadeva Swamy ◽  
S.N. Nagesha ◽  
Prakash M Navale ◽  
T.K.S. Gowda ◽  
R. Asokan ◽  
...  
Keyword(s):  
Genetic Transformation ◽  
Brassica Oleracea ◽  
Plutella Xylostella ◽  
Diamondback Moth

Relationship between adult oviposition preference and larval performance of the diamondback moth, Plutella xylostella

2012 ◽  
Vol 85 (2) ◽  
pp. 247-252 ◽  
Author(s):  
Peng-Jun Zhang ◽  
Yao-bin Lu ◽  
Myron P. Zalucki ◽  
Shu-Sheng Liu
Keyword(s):  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Oviposition Preference ◽  
Larval Performance

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.

Parasitism of Diamondback Moth (Lepidoptera: Plutellidae) Larvae by Cotesia plutellae (Hymenoptera: Braconidae) and Diadegma insulare (Hymenoptera: Ichneumonidae) in Cabbage Fields after Inundative Releases of C. plutellae2

1999 ◽  
Vol 34 (1) ◽  
pp. 101-112 ◽  
Author(s):  
E. R. Mitchell ◽  
G. Y. Hu ◽  
J. S. Okine ◽  
J. E. Carpenter
Keyword(s):  
Brassica Oleracea ◽  
Diamondback Moth ◽  
Release Site ◽  
Cotesia Plutellae ◽  
Diadegma Insulare ◽  
Cabbage Plant ◽  
Sentinel Plants ◽  
Release Area ◽  
Total Parasitism ◽  
Inundative Releases

Cocoons of Cotesia plutellae (Kurdjumov) were released for nine consecutive wk along the margins of two commercial cabbage (Brassica oleracea var. bravo L.) fields near Bunnell, Flagler Co., FL, in spring 1996. The larval parasitism of diamondback moth, Plutella xylostella (L.), by C. plutellae and by the native parasitoid Diadegma insulare (Cresson) was evaluated in release fields and in nearby cabbage fields using two methods-sentinel collard (Brassica oleracea var. acephala L.) or sentinel cabbage plants and non-sentinel plants. Total parasitism of diamondback moth larvae on sentinel plants in the release and adjacent fields was 35.7%. There were no significant differences in the level of parasitism by C. plutellae among sentinel plant locations within the release fields. In non-release fields, parasitoids spread as far as 1,500 m from the nearest release site during the release period, but parasitism of larvae on sentinel plants decreased as the distance from the release area increased. Parasitism of diamondback moth larvae by D. insulare was 8.3% in C. plutellae release and adjacent fields, but 14.6% in the nearby fields. Sampling of non-sentinel cabbage plants for diamondback moth larvae demonstrated a total of 37.4% larval parasitism by C. plutellae in the release and adjacent fields, similar to that recorded on sentinel plants. However, C. plutellae were detected only as far as 800 m from the release site on non-sentinel cabbage plants, and total parasitism in the dispersal fields also was very low. Diadegma insulare contributed only 1.1% parasitism of larvae sampled from non-sentinel plants in all cabbage fields. Cotesia plutellae was more effective than D. insulare in attacking diamondback moth larvae in this study where field populations of diamondback moth were low (&lt;0.1 larva per cabbage plant).

scholarly journals Feeding preference of Euborellia annulipes to Plutella xylostella: effects of temperature and prey development stage

2020 ◽  
Vol 50 ◽  
Author(s):  
Gilmar da Silva Nunes ◽  
Hágabo Honorato de Paulo ◽  
Welliny Soares Rocha Dias ◽  
Sergio Antonio De Bortoli
Keyword(s):  
Plutella Xylostella ◽  
Prey Capture ◽  
Diamondback Moth ◽  
Feeding Preference ◽  
Development Stage ◽  
Pest Population ◽  
Potential Predator ◽  
Predator Prey ◽  
Development Stages ◽  
Effects Of Temperature

ABSTRACT The ring-legged earwig Euborellia annulipes has been studied as a natural enemy of pest-insects and a potential predator of diamondback moth. Temperature is an important factor that mediates the pest population density and may affect the predator-prey relationship dynamics. This study aimed to evaluate the effect of the temperature and development stage of Plutella xylostella individuals on the feeding preference of E. annulipes females. Three temperatures (18 ºC, 25 ºC and 32 ºC), two development stages (larvae and pupae) and two feeding conditions related to the prey capture (with or without choice) were assessed. No matter the temperature, ring-legged earwig females showed a preference for eating larvae, instead of pupae. The temperature and choice conditions influenced the amount of consumed preys, but only for larvae (not for pupae). The lowest larvae consumption was observed at 18 ºC, in both prey capture conditions.

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