Life Tables of the Diamondback Moth, Plutella xylostella(L.)(Lepidoptera:Yponomeutidae)and Effects of Rainfall, Temperature and Host Plants on Survival and Reproduction.

1991 ◽  
Vol 35 (2) ◽  
pp. 115-122 ◽  
Author(s):  
Shigekazu WAKISAKA ◽  
Ritsuko TSUKUDA ◽  
Fusao NAKASUJI
2010 ◽  
Vol 101 (1) ◽  
pp. 99-105 ◽  
Author(s):  
K. Henniges-Janssen ◽  
G. Schöfl ◽  
A. Reineke ◽  
D.G. Heckel ◽  
A.T. Groot

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.


2020 ◽  
Author(s):  
Elizeu S. Farias ◽  
Renata C. Santos ◽  
Daiane G. Carmo ◽  
João R. S. Soares ◽  
Thiago L. Costa ◽  
...  

2010 ◽  
Vol 142 (1) ◽  
pp. 24-35 ◽  
Author(s):  
R.M. Sarfraz ◽  
L.M. Dosdall ◽  
B.A. Keddie

AbstractThe diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is considered oligophagous on Brassicaceae. We determined the preferences and performance of P. xylostella on canola, Brassica napus L., and flixweed, Descurainia sophia (L.) Webb ex Prantl (Brassicaceae), spider-plant, Cleome hassleriana Chod. (Capparaceae), and garden nasturtium, Tropaeolum majus L. (Tropaeolaceae). Females deposited most eggs on B. napus; T. majus was least preferred. The rate of survival from neonate to pupa was highest on B. napus followed by C. hassleriana, T. majus, and D. sophia. The rate of development of female larvae on Brassicaceae was similar to that on non-Brassicaceae; pupal development was slowest on non-hosts. Female pupae were heaviest on B. napus and lightest on D. sophia. Adult females were heaviest when reared on B. napus and lightest on T. majus and D. sophia. Females reared on D. sophia had the smallest forewings; forewing areas for females on other plants were similar. Females reared on B. napus and C. hassleriana lived longer without food than those reared on D. sophia or T. majus. Males reared on T. majus lived for the shortest time without food. This specialist herbivore can exploit a range of food plants, including suboptimal Brassicaceae and species from other families. This trait appears to facilitate survival and reproduction of P. xylostella when preferred food plants are limiting or absent.


2020 ◽  
Vol 134 ◽  
pp. 105172 ◽  
Author(s):  
Elizeu S. Farias ◽  
Abraão A. Santos ◽  
Arthur V. Ribeiro ◽  
Daiane G. Carmo ◽  
Jhersyka S. Paes ◽  
...  

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