scholarly journals Improving Bisexual Lures for the Silver Y Moth Autographa gamma L. and Related Plusiinae (Lepidoptera: Noctuidae)

2019 ◽  
Vol 54 (1) ◽  
pp. 137-146 ◽  
Author(s):  
M. Tóth ◽  
P. Landolt ◽  
I. Szarukán ◽  
A. Nagy ◽  
J. K. Jósvai
Keyword(s):  
Autographa Gamma ◽  
Silver Y Moth ◽  
Lepidoptera Noctuidae

scholarly journals Was the Silver Y Moth Autographa gamma (Lepidoptera: Noctuidae: Plusiinae) in South America?

2019 ◽  
Vol 11 (2) ◽  
pp. 132
Author(s):  
Martha C. Erazo-Moreno ◽  
Eduardo Carneiro ◽  
Alexandre Specht
Keyword(s):  
South America ◽  
World Trade ◽  
Female Genitalia ◽  
Species Identity ◽  
Male And Female ◽  
Autographa Gamma ◽  
The Future ◽  
Large Populations ◽  
Silver Y Moth ◽  
Lepidoptera Noctuidae

In this study we confirmed former records of Autographa gamma in South America by examining four individuals collected in different locations of Brazil and Uruguay. Species identity was established by examining male and female genitalia morphology. Some, but not all, location records are in the vicinity of cities with large seaports used for commercial trades of agricultural goods. Additionally, literature records indicate this species was using local hostplants. Furthermore, addtional repports states that this species had large populations during the end of thirties decade but vanished after that without further justification. Here we discuss aspects related to a possible reintroduction of species in the future as a consequence of the increasing world trade business.

Effects of temperature and photoperiod on development and pre-reproductive period of the silver Y moth Autographa gamma (Lepidoptera: Noctuidae)

1992 ◽  
Vol 82 (3) ◽  
pp. 335-341 ◽  
Author(s):  
J.K. Hill ◽  
A.G. Gatehouse
Keyword(s):  
North Africa ◽  
Laboratory Experiments ◽  
Reproductive Period ◽  
Migratory Flight ◽  
Autographa Gamma ◽  
Seasonal Migrations ◽  
Wintering Areas ◽  
Silver Y Moth ◽  
Effects Of Temperature ◽  
Lepidoptera Noctuidae

AbstractAdults of Autographa gamma (Linnaeus) make regular, seasonal migrations into areas where they are unable to breed continuously. Individuals migrate into Britain each spring, and after one, two or three generations, offspring of the spring migrants return to over-wintering areas in North Africa and the Middle East. The larvae are highly polyphagous and have been recorded damaging many crops, especially Brassica spp. Insects usually migrate during the adults' pre-reproductive period (PRP). The length of this period is therefore an index of migratory potential since individuals with longer PRPs have more time to express their capacity for flight and to travel further. Individuals reared outside in Britain in autumn have longer PRPs than individuals reared outside in summer. Laboratory experiments show that PRPs are extended at low temperatures and under short photoperiods and there is some evidence that PRPs are also extended under gradually decreasing photoperiods. By extending PRPs in response to environmental conditions typical of Britain in autumn, individuals are able to increase their potential for pre-reproductive migratory flight and therefore their potential for reaching suitable overwintering sites further south.

Effects of tepa and other aziridine alkylating agents on egg development in the red bollworm Diparopsis castanea Hmps, and the silver Y moth Autographa gamma (L.) (Lep., Noctuidae)

1973 ◽  
Vol 62 (3) ◽  
pp. 401-405
Author(s):  
D. G. Campion
Keyword(s):  
Embryonic Development ◽  
Histological Examination ◽  
Early Stage ◽  
Alkylating Agents ◽  
Progressive Increase ◽  
Egg Development ◽  
Egg Hatch ◽  
Time Of Application ◽  
Autographa Gamma ◽  
Silver Y Moth

Increased doses of tepa applied by injection to female Diparopsis castanea Hmps. caused a progressive increase in sterility accompanied by a decrease in the number of eggs oviposited from the time of application. After an interval of three days it was shown by histological examination that injected doses of 10 μg of tepa induced degeneration of the developing oocytes and a shrinkage or resorption of some of the mature eggs. After Diparopsis male moths were treated with graduated injected doses of apholate, metepa and tepa and then mated with untreated females, considerable embryonic development without subsequent egg hatch occurred at the lower dosage levels. When tepa-treated Autographa gamma (L.) males at a dose of 10 μg were similarly mated with untreated females histological examination showed that the development of many of the eggs had been arrested at a very early stage; in some instances a greater development, although of an abnormal kind, had taken place.

Sex Pheromone Components of the Gamma Moth, Autographa gamma (L.) (Lepidoptera: Noctuidae)

1983 ◽  
Vol 38 (11-12) ◽  
pp. 1011-1014 ◽  
Author(s):  
E. Dunkelblum ◽  
S. Gothilf
Keyword(s):  
Sex Pheromone ◽  
Sex Pheromone Components ◽  
Autographa Gamma ◽  
Pheromone Components ◽  
First Time ◽  
Lepidoptera Noctuidae ◽  
Natural Pheromone

Z-7-Dodecenyl acetate and Z-7-dodecenyl alcohol have been identified as sex pheromone components o f female Autographa gamma. This is the first time that Z-7-dodecenyl alcohol has been found in the natural pheromone of Plusiinae. When incorporated in pherom one traps of some Plusiinae species the alcohol is both synergist and inhibitor, thus being an important factor in sex isolation among sympatric Plusiinae species in Israel

Addition of 4‐oxoisophorone improves performance of bisexual lure for Autographa gamma (L.) (Lepidoptera: Noctuidae)

2021 ◽  
Author(s):  
Antal Nagy ◽  
István Szarukán ◽  
Tímea Szalárdi ◽  
Szabolcs Szanyi ◽  
Júlia K. Jósvai ◽  
...  
Keyword(s):  
Autographa Gamma ◽  
Lepidoptera Noctuidae ◽  
Bisexual Lure
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