Feeding Preferences of Neonates and Late Instar Larvae of a Lepidopterous Pest Complex (Lepidoptera: Noctuidae) on Sorghum, Maize, and Noncrop Vegetation in Honduras

1996 ◽  
Vol 25 (3) ◽  
pp. 589-598 ◽  
Author(s):  
Hector E. Portillo ◽  
Henry N. Pitre ◽  
Dan H. Meckenstock ◽  
Keith L. Andrews
Keyword(s):  
Feeding Preferences ◽  
Lepidopterous Pest ◽  
Late Instar ◽  
Lepidoptera Noctuidae

Olfactory responses and feeding preferences of Copitarsia uncilata (Lepidoptera: Noctuidae) to four aromatic herb specie

2017 ◽  
Vol 43 (2) ◽  
pp. 179
Author(s):  
Miguel Mendieta ◽  
Andreas Gaigl ◽  
Juan Carlos Getiva de la Hoz ◽  
Anibal Orlando Herrera
Keyword(s):  
Host Plant ◽  
Feeding Preferences ◽  
Larval Weight ◽  
Olfactory Responses ◽  
Host Selection Behavior ◽  
Selection Behavior ◽  
Larva Feeding ◽  
Plant Choice ◽  
Lepidoptera Noctuidae ◽  
Aromatic Herbs

Colombian aromatic herbs have great potential as an export commodity. The genus Copitarsia is considered as an economic and a quarantine pest attacking them. In herbivore insects, host plant choice is made by adults and influenced by host plant quality. There were performed olfactory and feeding tests by using four-arm olfactometer and offering four different aromatic herbs (basil, mint, rosemary, or thyme) to determine the host selection behavior of Copitarsia uncilata Burgos and Leiva. Parameters, such as adult choice, larval weight, and time spent by larva on particular herb were measured. The preferences of adults and immature of C. uncilata varied significantly among the herbs in olfactory and larva feeding tests. The adults showed significantly higher responses to essential oils of basil and rosemary. Higher weight of larva was recorded on mint and basil. Further studies on larval development and longevity of adults on different herbs are necessary.

scholarly journals The feeding preferences of Spodoptera frugiperda (J. E. SMITH) (Lepidoptera: Noctuidae) on cotton plant varieties

2012 ◽  
Vol 34 (2) ◽  
Author(s):  
Zeneide Ribeiro Campos ◽  
Arlindo Leal Boiça-Júnior ◽  
Walter Veriano Valério Filho ◽  
Ostenildo Ribeiro Campos ◽  
Alcebiades Ribeiro Campos
Keyword(s):  
Cotton Plant ◽  
Spodoptera Frugiperda ◽  
Feeding Preferences ◽  
Lepidoptera Noctuidae

scholarly journals Host Plant Suitability and Feeding Preferences of the Grapevine Pest Abagrotis orbis (Lepidoptera: Noctuidae)

2011 ◽  
Vol 40 (6) ◽  
pp. 1458-1464 ◽  
Author(s):  
A. M. Mostafa ◽  
D. T. Lowery ◽  
L.B.M. Jensen ◽  
E. K. Deglow
Keyword(s):  
Host Plant ◽  
Feeding Preferences ◽  
Host Plant Suitability ◽  
Lepidoptera Noctuidae

PARASITISM OF THE ARMY CUTWORM, EUXOA AUXILIARIS (GRT.) (LEPIDOPTERA: NOCTUIDAE), BY COPIDOSOMA BAKERI (HOWARD) (HYMENOPTERA: ENCYRTIDAE) AND EFFECT ON CROP DAMAGE

1993 ◽  
Vol 125 (2) ◽  
pp. 329-335 ◽  
Author(s):  
J.R. Byers ◽  
D.S. Yu ◽  
J.W. Jones
Keyword(s):  
Life Cycles ◽  
High Rate ◽  
Crop Damage ◽  
Successful Strategy ◽  
Single Location ◽  
Southern Alberta ◽  
Late Instar ◽  
Lepidoptera Noctuidae ◽  
Host Development

AbstractDuring an outbreak of army cutworm in southern Alberta in the spring of 1990, the overall incidence of parasitism by the polyembryonic parasitoid, Copidosoma bakeri (Howard), was 61% in samples from seven fields. The incidence of parasitism in samples of army cutworms collected on five dates from a single location, during the spring of 1991, increased from about 20% in the early samples to about 50% in the later samples. Cutworms parasitized by C. bakeri feed for a longer time than unparasitized ones; therefore estimates of the incidence of parasitism by C. bakeri, based on samples of late-instar cutworms, are misleadingly high. Parasitized cutworms also grow considerably larger than unparasitized ones and may have a supernumerary instar. Larger hosts support larger broods of C. bakeri and apparently a successful strategy of C. bakeri is to prolong host development so as to maximize an acquired resource. Because cutworms parasitized by C. bakeri feed more and longer than unparasitized cutworms, a high rate of parasitism can exacerbate crop damage and complicate control recommendations. The life cycles of army cutworm and C. bakeri are asynchronous and it is likely that high rates of parasitism are dependent on the presence of intermediary hosts.

PREDICTING LARVAL ABUNDANCE OF THE BERTHA ARMYWORM, MAMESTRA CONFIGURATA WLK., IN MANITOBA FROM CATCHES OF MALE MOTHS IN SEX ATTRACTANT TRAPS

1987 ◽  
Vol 119 (2) ◽  
pp. 167-178 ◽  
Author(s):  
W.J. Turnock
Keyword(s):  
Sex Attractant ◽  
Larval Density ◽  
Larval Abundance ◽  
Target Species ◽  
Economic Threshold ◽  
Mamestra Configurata ◽  
Trap Field ◽  
Late Instar ◽  
Lepidoptera Noctuidae ◽  
Bertha Armyworm

AbstractTwo cone-orifice-type traps baited with (Z)-11-hexadecen-1-ol acetate (1.0 mg) and (Z)-9-tetradecen-1-ol acetate (0.05 mg) were placed in each of 5–13 canola (Brassica spp.) fields per year for 7 years at locations distributed throughout the area in Manitoba subject to outbreaks of the bertha armyworm, Mamestra configurata Wlk. (Lepidoptera: Noctuidae). The number of male moths per trap varied from 0 to 821 in the 90 fields trapped. Larval density, in the trap fields and in 185 nearby canola fields, varied from 0 to 105 per square metre. There was a direct relationship between the number of moths per trap and the density of late-instar larvae (L4–L6) for the trap fields and for nearby (within 5 km) fields but variability was loo high to allow accurate prediction of larval densities for individual fields. However, the number of moths per trap could be used to predict the proportion of fields in the vicinity of the trap field that would have larval densities above the economic threshold. No fields with above-threshold larval densities occurred with captures of <20 moths per trap. The proportion of fields with larval densities above the economic threshold increased from 0.10 with 20–30 moths per trap, lo 0.19 with 30–60 moths per trap, 0.64 with 70–100 moths per trap, and 0.91 with over 100 moths per trap. Contamination of catches by non-target species of noctuid moths had insignificant effects on the accuracy of these predictions because even if they were misidentified as M. configurata the number of moths per trap changed only marginally. Populations of M. configurara were higher and local outbreaks occurred more frequently in canola-growing areas adjacent to morainic hills along the Manitoba Escarpment, whereas populations were low in areas of the Manitoba Lowlands and of the Western Uplands. A proposed monitoring system for M. configurata in Manitoba is described.

scholarly journals Biology and Feeding Preferences of Spodoptera Frugiperda (Lepidoptera: Noctuidae) On Maize and Selected Vegetable Crops

2021 ◽  
Vol 16 (1) ◽  
pp. 126
Author(s):  
D. M. I. J. Wijerathna ◽  
P. H. Ranaweera ◽  
R. N. N. Perera ◽  
M. L. M. C. Dissanayake ◽  
J. B. D. A. P. Kumara
Keyword(s):  
Spodoptera Frugiperda ◽  
Vegetable Crops ◽  
Feeding Preferences ◽  
Lepidoptera Noctuidae
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