Comparative Life-Histories of Three Mocis spp. in Florida (Lepidoptera: Noctuidae)

1975 ◽  
Vol 58 (2) ◽  
pp. 97 ◽  
Author(s):  
E. O. Ogunwolu ◽  
D. H. Habeck
Keyword(s):  
Life Histories ◽  
Lepidoptera Noctuidae

BIOSYSTEMATICS OF THE GENUS EUXOA (LEPIDOPTERA: NOCTUIDAE): V. REARING PROCEDURES, AND LIFE CYCLES OF 36 SPECIES

1976 ◽  
Vol 108 (12) ◽  
pp. 1345-1357 ◽  
Author(s):  
C. F. Hinks ◽  
J. R. Byers
Keyword(s):  
Life Histories ◽  
Artificial Diet ◽  
Antimicrobial Agents ◽  
Life Cycles ◽  
Seasonal Distribution ◽  
Rearing Method ◽  
Laboratory Conditions ◽  
Laboratory Colonies ◽  
Lepidoptera Noctuidae

AbstractA rearing method, based upon an artificial diet, has proved successful in establishing laboratory colonies of 36 species of the genus Euxoa. The diet is described, along with methods for controlling disease, particularly by the use of antimicrobial agents.Many of the 36 species of Euxoa have not been reared before and their habits and life histories are little known. The data derived from their development under laboratory conditions and which can be related to seasonal distribution are recorded. Particular emphasis is given to the overwintering stage and to the occurrence of an aestivating stage.

Comparative Performance of the Fall Armyworm (Lepidoptera: Noctuidae) Reared on Various Cereal-Based Artificial Diets

2020 ◽  
Vol 113 (6) ◽  
pp. 2986-2996
Author(s):  
Tao Jin ◽  
Yu-ying Lin ◽  
Hsin Chi ◽  
Kai-ping Xiang ◽  
Guang-chang Ma ◽  
...  
Keyword(s):  
Life Histories ◽  
Wheat Germ ◽  
Mainland China ◽  
Fall Armyworm ◽  
Developmental Rate ◽  
Mass Rearing ◽  
Reproduction Rate ◽  
Artificial Diets ◽  
Comparative Performance ◽  
Lepidoptera Noctuidae

Abstract The fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera, Noctuidae), is a polyphagous and highly destructive agricultural pest that invaded mainland China in 2019. To facilitate research on this pest, it is important to formulate and formalize a suitable artificial diet based on local ingredients. In this study, the life histories of fall armyworm reared on corn leaves and four artificial diets were recorded. The four artificial diets used were: soybean and sucrose-based (SS), soybean and wheat germ-based (SW), chickpea and wheat germ-based (CPW), and corn and soybean-based (CNS). The intrinsic rates of increase were 0.1957, 0.1981, 0.1816, 0.1748, and 0.1464 per day in the fall armyworm populations fed corn leaves, CNS, SW, CPW, and SS, respectively. The highest fecundity (F = 1225.4 eggs per female) and net reproduction rate (R0 = 544.7 offspring per individual) were observed for the fall armyworm reared on the CNS diet. Moreover, the developmental rate, survival rate, and fecundity were used to calculate the projection of the population growth. Projection results showed that the fall armyworm populations can increase considerably faster when fed the CNS diet compared with the other diets. In addition, the mass-rearing system showed that the most efficient and economical strategy would be to rear the fall armyworm on the CNS diet. The results indicated that the CNS diet was the most suitable diet for the fall armyworm mass rearing.

Life Histories of Patients With Chronic Ulcerative Colitis: A Review of 2,000 Cases

1950 ◽  
Vol 16 (1) ◽  
pp. 25-38 ◽  
Author(s):  
Wyman P. Sloan ◽  
F. Arnold Bargen ◽  
Robert P. Gage
Keyword(s):  
Ulcerative Colitis ◽  
Chronic Ulcerative Colitis ◽  
Life Histories

Power and politics in migration narrative methodology: Research with young Congolese migrants in Uganda

2009 ◽  
Vol 6 (2) ◽  
pp. 131-141 ◽  
Author(s):  
Christina Clark-Kazak
Keyword(s):  
Qualitative Research ◽  
Young People ◽  
Life Histories ◽  
Narrative Research ◽  
Power Dynamics ◽  
Methodological Issues ◽  
Personal Boundaries ◽  
Migration Narratives ◽  
Narrative Methodology

This paper explores the power dynamics inherent in qualitative research involving migration narratives. Drawing on the author’s experiences collecting life histories and constructing narratives of Congolese young people in Uganda, this article addresses the ethical and methodological issues of representivity, ownership, anonymity and confidentiality. It also explores the importance of investment in relationships in migration narrative research, but also the difficulties that arise when professional and personal boundaries become blurred.

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