Classification of crucifer cultivars based on the life-history of diamondback moth (Plutella xylostella)

2013 ◽  
Vol 59 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Sergio A. De Bortoli ◽  
Alessandra M. Vacari ◽  
Roberto M. Goulart ◽  
Antonio S. Ferraudo ◽  
Haroldo X.L. Volpe
Keyword(s):  
Life History ◽  
Plutella Xylostella ◽  
Diamondback Moth ◽  
History Of

LIFE HISTORY OF PLUTELLA PORRECTELLA, A RELATIVE OF THE DIAMONDBACK MOTH, PLUTELLA XYLOSTELLA (LEPIDOPTERA: PLUTELLIDAE)

1984 ◽  
Vol 116 (7) ◽  
pp. 913-917 ◽  
Author(s):  
D. B. Smith ◽  
M. K. Sears
Keyword(s):  
Life History ◽  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Parasitic Wasp ◽  
Instar Larva ◽  
Alternative Host ◽  
Apical Buds ◽  
Two Generations ◽  
History Of ◽  
Early Instar

AbstractAlthough Plutella porrectella (L.) is similar in appearance to the diamondback moth, P. xylostella (L.), several aspects of its biology are quite different from its more common relative. P. porrectella completed two generations per year and overwintered as an early-instar larva within apical buds of dame's rocket, Hesperis matronalis (L.). Four instars were observed in larvae reared in the laboratory. An average of 30 days was required for completion of one generation at 25 °C. This species does not seem to be an alternative host for parasites of the diamondback moth as only a single parasitic wasp, Itoplectis conquisitor (Say), was reared from 228 larvae collected in the field.

SEASONAL POPULATIONS OF THE DIAMONDBACK MOTH, PLUTELLA XYLOSTELLA (LEPIDOPTERA: PLUTELLIDAE) IN RELATION TO DAY-DEGREE ACCUMULATION

1981 ◽  
Vol 113 (2) ◽  
pp. 127-131 ◽  
Author(s):  
R. A. Butts ◽  
F. L. McEwen
Keyword(s):  
Life History ◽  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Threshold Temperature ◽  
Sticky Traps ◽  
Brussels Sprouts ◽  
Fifth Generation ◽  
History Of

AbstractThe life history of Plutella xylostella (L.) was studied in plantings of Brussels sprouts at Cambridge, Ontario in 1977 and 1978. Adults were monitored by using sticky traps constructed of bristol board; eggs, larvae, and pupae were monitored by sampling plants. In both years in the spring, some of the first eggs were found before adults were caught in the traps. The trap collections indicated four periods of adult flight each year. During the last period of flight in 1977 eggs were laid; however, the fifth generation was not completed. Day-degree analyses of the populations indicated that 293 day-degrees (C) above a threshold temperature (7.3°C) were required to complete one generation. Using day-degree accumulations it was possible to predict accurately the periods when various stages of the pest were dominant even though there was considerable overlap of various stages in the field.

scholarly journals Life-History and Behavior of the Diamondback Moth Plutella xylostella on Brassicaceae Cultivars over Multiple Generations

2020 ◽  
Author(s):  
Sergio Antonio De Bortoli ◽  
Wanderlei Dibelli ◽  
Dagmara Ramalho ◽  
Robério C S Neves ◽  
Caroline Placidi De Bortoli ◽  
...  
Keyword(s):  
Life History ◽  
Plutella Xylostella ◽  
Diamondback Moth ◽  
Multiple Generations ◽  
And Behavior

scholarly journals CLASSIFICATION OF THE HORNTAILS AND SAWFLIES, OR THE SUB-ORDER PHYTOPHAGA

1898 ◽  
Vol 30 (8) ◽  
pp. 205-213 ◽  
Author(s):  
William H. Ashmead
Keyword(s):  
Life History ◽  
North American ◽  
Distinct Species ◽  
Undescribed Species ◽  
History Of ◽  
Authentic Life

No species seems to be known in this family outside of the European and North American faunas, and very few species are described. The group was first treated as a subfamily by Newman as early as 1834.The imagoes appear very early in the year, or in February, March and April, deposit their eggs and then disappear, the consequence being that very few are taken and only a few of the commoner forms are known. With more careful collecting early in the season, however, the probabilities are that many more species will be discovered in our fauna.The imagoes of three distinct species of these insect, representing as many genera, have been bred recently from the larvæ by Dr. H. G. Dyar, and we are not only indebted to him for the first authentic life-history of a species in this group, but also for the first scientific description of the larva. His recent discovery of a large undescribed species in the rare genus Pleuroneura was most unexpected.

Studies on Larval Trematodes Infecting Freshwater Snails in London (U.K.) and Some Adjoining Areas. Part VI. The Gercariae of the “Vivax” Group and the Life History of Cercaria bushiensis n.sp. (=Cyathocotyle bushiensis n.sp.)

1962 ◽  
Vol 36 (1-2) ◽  
pp. 67-94 ◽  
Author(s):  
Daler Khan
Keyword(s):  
Life History ◽  
New Species ◽  
Life Cycle ◽  
Freshwater Snails ◽  
History Of ◽  
Three New Species ◽  
Cyathocotyle Bushiensis

Three new species of cercariae of the ‘Vivax’ type are described from London (U.K.) and the classification of this group of cercariae is discussed.The life-cycle of one of the cercariae is studied and different stages are described in detail.

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