scholarly journals Laboratory Evaluation of the Flight Ability of Female Autographa nigrisigna (Lepidoptera: Noctuidae), Measured by Actograph and Flight Mill

2013 ◽  
Vol 106 (2) ◽  
pp. 690-694 ◽  
Author(s):  
Aoi Hashiyama ◽  
Masashi Nomura ◽  
Jun Kurihara ◽  
Goro Toyoshima
Keyword(s):  
Laboratory Evaluation ◽  
Flight Ability ◽  
Flight Mill ◽  
Lepidoptera Noctuidae

FIELD AND LABORATORY EVALUATION OF A SEX ATTRACTANT FOR THE WHITE CUTWORM, EUXOA SCANDENS (LEPIDOPTERA: NOCTUIDAE)

1982 ◽  
Vol 114 (11) ◽  
pp. 1101-1103
Author(s):  
D. G. R. McLeod ◽  
T. Nagai ◽  
A. N. Starratt ◽  
C. Bonenfant ◽  
E. W. Rud ◽  
...  
Keyword(s):  
Sex Attractant ◽  
Adult Population ◽  
Field Tests ◽  
Laboratory Evaluation ◽  
Vegetable Crops ◽  
Female Sex Pheromone ◽  
Sex Attractants ◽  
Monitoring Method ◽  
Lepidoptera Noctuidae ◽  
Insecticide Control

The white cutworm, Euxoa scandens (Riley), is a sporadic pest of tobacco in Quebec (Mailloux and Desrosiers 1978), asparagus in Michigan (A. L. Wells, pers. comm.), and other vegetable crops grown in light sandy soils (Beirne 1971). The immature larvae overwinter and cause serious damage when they resume feeding in the spring (Hudson and Wood 1930). Moths emerge and oviposit from late June until late July (McLeod and Dupré 1981). An efficient monitoring method utilizing the female sex pheromone would be an important aid in estimating the size and distribution of the adult population and would help in planning insecticide control. We report here some results of electroantennogram screening of potential sex attractants and the results of field tests of the most active of these.

Mating and Oviposition of the Pale Western Cutworm, Agrotis orthogonia Morrison (Lepidoptera: Noctuidae), in the Laboratory

1965 ◽  
Vol 97 (9) ◽  
pp. 994-1000 ◽  
Author(s):  
L. A. Jacobson
Keyword(s):  
Diurnal Rhythm ◽  
Bright Light ◽  
Pupal Stage ◽  
Maximum Distance ◽  
Bursa Copulatrix ◽  
Flight Mill ◽  
Early Evening ◽  
Multiple Matings ◽  
Honey Solution ◽  
Lepidoptera Noctuidae

AbstractIn the laboratory 90.7% of both sexes of moths of the pale western cutworm, Agrotis orthogonia Morrison, emerged from pupae between noon and midnight; almost half emerged between 2 and 4 p.m. Mating, evidenced by spermatophores in the bursa copulatrix, occurred almost always at night, within 3 days of emergence, and at temperatures between 5 and 35 °C. Most females mated only once. Multiple matings, with a maximum of 3 times, occurred in less than 20% of females. Males mated with a maximum of three females. Eggs developed during the pupal stage and were ready for fertilization when the moths emerged. Oviposition began on the first or second day after mating, peaked soon after, and continued until just prior to death of females. Maximum oviposition by one female was 564 eggs, with means from 90 to 342. Oviposition occurred at all temperatures from 5 to 35 °C. with an optimum between 10 and 25 °C. More eggs were laid in the dark or in subdued light than in continuous bright light. Females when unfed could oviposit but when fed water or sugar solutions they laid more eggs. Longevity varied directly with feeding and inversely with temperature. Mean longevity of moths fed honey solution in the laboratory was 12 days for both sexes. A diurnal rhythm of oviposition occurred with distinct peaks; 80% or more of the eggs were laid between noon and early evening. Rhythm of oviposition was apparently initiated by light and could be reversed by reciprocal light regimens but was maintained in continuous dark or light. The maximum distance flown on a flight mill was 14.7 miles for males and 3.5 miles for females. Speed varied from less than 1 to almost 3 m.p.h.

Growth, food consumption and food utilisation of Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae) on Four food-plants

1981 ◽  
Vol 71 (4) ◽  
pp. 655-662 ◽  
Author(s):  
Y. A. Duodu ◽  
F. F. Biney
Keyword(s):  
Food Consumption ◽  
Spodoptera Littoralis ◽  
Food Plants ◽  
Laboratory Evaluation ◽  
Digestive Efficiency ◽  
Fresh Weight ◽  
Prepupal Stage ◽  
Total Food ◽  
Food Utilisation ◽  
Lepidoptera Noctuidae

AbstractA laboratory evaluation of growth, food consumption and food utilisation by larvae of Spodoptera littoralis (Boisd.) was made from the beginning of the fifth instar to the prepupal stage on cabbage, cotton, kenaf and Congo jute (Urena lobata). Growth, measured by daily larval fresh weight, was highest on cabbage and similar on kenaf, Urena and cotton. Development was fastest on cabbage and slowest on cotton and Urena. Larvae underwent an extra moult on the latter two food-plants. Weight gain was highest on cabbage, followed by cotton, Urena and kenaf, in that order. Total food consumption was highest on cotton and lowest on kenaf and Urena. Cabbage was most efficiently digested, followed by kenaf, cotton and Urena, in that order. Digestive efficiency on all four plants declined with larval age. The efficiency of conversion of ingested food to body material was highest on cabbage and lowest on cotton and kenaf. Digested portions of Urena were most efficiently converted to body substance while digested portions of cabbage and kenaf were most inefficiently converted to body material. It is concluded that S. littoralis is better adapted to cabbage than any of the other three plants and that increasing cultivation of cabbage in Ghana is likely to enhance the pest status of the insect.

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