Toxicity of Avermectin to Larva and Adult Soybean Looper (Lepidoptera: Noctuidae) and Influence on Larva Feeding and Adult Fertility and Fecundity

1985 ◽  
Vol 78 (5) ◽  
pp. 1125-1128 ◽  
Author(s):  
Mark R. Beach ◽  
James W. Todd
Keyword(s):  
Larva Feeding ◽  
Soybean Looper ◽  
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.

Field-evolved resistance to chitin synthesis inhibitor insecticides by soybean looper, Chrysodeixis includens (Lepidoptera: Noctuidae), in Brazil

Chemosphere ◽  
2020 ◽  
Vol 259 ◽  
pp. 127499
Author(s):  
Regis F. Stacke ◽  
Daniela N. Godoy ◽  
Venicius E. Pretto ◽  
Fábio M. Führ ◽  
Patricia da S. Gubiani ◽  
...  
Keyword(s):  
Chitin Synthesis ◽  
Synthesis Inhibitor ◽  
Chitin Synthesis Inhibitor ◽  
Soybean Looper ◽  
Lepidoptera Noctuidae ◽  
Chrysodeixis Includens

Floral attractants for the female soybean looper,Thysanoplusia orichalcea(Lepidoptera: Noctuidae)

2008 ◽  
Vol 64 (12) ◽  
pp. 1218-1221 ◽  
Author(s):  
Lloyd D Stringer ◽  
Ashraf M El-Sayed ◽  
Lyn M Cole ◽  
Lee-Anne M Manning ◽  
David M Suckling
Keyword(s):  
Soybean Looper ◽  
Lepidoptera Noctuidae

Effects of Velvetleaf Competition and Defoliation by Soybean Looper (Lepidoptera: Noctuidae) on Yield of Indeterminate Soybean

1992 ◽  
Vol 85 (6) ◽  
pp. 2433-2439 ◽  
Author(s):  
Charles G. Helm ◽  
Marcos Kogan ◽  
David W. Onstad ◽  
Loyd M. Wax ◽  
Michael R. Jeffords
Keyword(s):  
Soybean Looper ◽  
Lepidoptera Noctuidae

SEASONAL INCIDENCE OF METEORUS AUTOGRAPHAE1 ON SOYBEAN LOOPER2 LARVAE ON SOYBEAN IN SOUTH CAROLINA, AND THE INFLUENCE OF HOST DENSITY ON PARASITIZATION3

1986 ◽  
Vol 21 (4) ◽  
pp. 338-345 ◽  
Author(s):  
J. F. Grant ◽  
M. Shepard
Keyword(s):  
South Carolina ◽  
Host Density ◽  
Pseudoplusia Includens ◽  
Cylindrical Container ◽  
Seasonal Incidence ◽  
Percent Parasitism ◽  
Soybean Looper ◽  
Lepidoptera Noctuidae

The seasonal incidence of Meteorus autographae Muesebeck (Hymenoptera: Braconidae) on larvae of the soybean looper, Pseudoplusia includens (Walker) (Lepidoptera: Noctuidae), in soybean fields in South Carolina was monitored at two locations during 1981, 1982, and 1983. In most instances, parasitism of soybean looper larvae by M. autographae was detected 7 to 14 days after soybean looper larvae were first found in the fields. During this three-year study, maximum parasitism of soybean looper larvae by M. autographae within a season ranged from 4.6 to 19.8%. In the laboratory, numbers of hosts parasitized per 24 hours by M. autographae increased with each successive increase in host density. At a host density of 40 larvae per 1.75-liter cylindrical container, an average of 26 hosts were parasitized by one M. autographae during 24 hours. Percent parasitism remained about the same (64 – 70%) at all host densities.

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