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.

Effect of Long Term Colonization on Attractancy of Females to Wild Males: Heliothis virescens and Heliothis Hybrid Backcross (Lepidoptera: Noctuidae)

1991 ◽  
Vol 26 (2) ◽  
pp. 281-286
Author(s):  
Marion L. Laster ◽  
Earl A. Stadelbacher
Keyword(s):  
Sex Pheromone ◽  
Heliothis Virescens ◽  
Field Tests ◽  
Female Sex Pheromone ◽  
Wild Female ◽  
Laboratory Rearing ◽  
Dynamic Studies ◽  
Female Hybrid ◽  
Lepidoptera Noctuidae

The sexual attractancy of female Heliothis virescens (F.) which had been cultured in the laboratory for 40 generations and of hybrid and backcross females (H. subflexa ♀ X H. virescens ♂) was determined and compared with the attractancy of wild female H. virescens. In field tests, females reared (< 1 generation) from field-collected larvae were significantly (P ≤ 0.05) less attractive to wild males than were females reared in the laboratory for 40 generations (HVL-40), but the attractancy of females reared in the laboratory for 1 or 41 generations did not differ significantly. The attractancy of H. virescens females from generations 40, 41 and BC females from generations 41, 42 or 179, 180 did not differ significantly in any of five tests, except in test three, where more wild males were attracted by HVL-40 than by BC-41 females. Continuous backcrossing of the female hybrid (180 generations) did not affect the attractivity of the female to the wild males. The attractancy of lab-reared H. virescens (except for generation 40) or hybrid BC virgin females, regardless of generation, to wild H. virescens males was not significantly different from that of the synthetic female sex pheromone Z-11-Hexadecenal: Z-9-tetradecenal (14.6:1). The data indicate the attractancy of H. virescens and BC virgin females to wild males may be enhanced by continuous laboratory rearing. These findings are important in population dynamic studies in which lab-reared females are used and in determining the ratio of BC to wild H. virescens females needed to suppress a given population of H. virescens.

Are Diachrysia chrysitis (L.) and D. tutti (Kostrowicki) different species? (Lepidoptera: Noctuidae)

1989 ◽  
Vol 20 (1) ◽  
pp. 15-22 ◽  
Author(s):  
Ingvar Svensson ◽  
Per Douwes ◽  
BO Stille
Keyword(s):  
Pattern Analysis ◽  
Sex Attractant ◽  
Field Trapping ◽  
The Other ◽  
Wing Pattern ◽  
Sex Attractants ◽  
Separate Species ◽  
Open Question ◽  
Lepidoptera Noctuidae ◽  
Different Parts

AbstractField trapping of Diachrysia chrysitis and D. tutti by sex-attractants was carried out in different parts of Sweden and Finland in 1985-1988. Allozyme electrophoresis and wing pattern analysis suggest that D. tutti is a separate species occurring sympatrically with D. chrysitis in the study area. Whether the great similarity between the samples was due to gene flow between species or specimens being trapped by the other species' sex-attractant is still an open question.

scholarly journals Comparing Performance of Synthetic Sex Attractants and a Semisynthetic Bisexual Lure in Orthosia and Conistra Species (Lepidoptera: Noctuidae)

2020 ◽  
Vol 55 (1) ◽  
pp. 115-122
Author(s):  
Sz. Szanyi ◽  
I. Szarukán ◽  
A. Nagy ◽  
J. Jósvai ◽  
Z. Imrei ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Red Wine ◽  
Sex Attractant ◽  
Isoamyl Alcohol ◽  
The Other ◽  
Sex Attractants ◽  
Other Hand ◽  
Lepidoptera Noctuidae ◽  
Bisexual Lure

The performance of a semisynthetic bisexual lure (SBL, containing isoamyl alcohol, acetic acid and red wine) previously found attractive for a number of noctuids was compared with that of the respective synthetic sex attractants of Orthosia cerasi (=stabilis), O. cruda, O. gothica, O. incerta, Anorthoa munda and Conistra vaccini. The respective sex attractants performed significantly better in the Orthosia spp. than the SBL lure, which, although regularly catching low numbers of both females and males, did not differ significantly from zero catch in unbaited control traps. On the other hand, the SBL lure performed as well as the sex attractant in C. vaccini. Sizeable catches of C. rubiginea, C. rubiginosa and C. erythrocephala were also recorded in traps with the SBL lure. The SBL lure can prove to be a useful tool in ecological and faunistical studies of Conistra and related hibernating Xylenini species.

Field testing of synthetic attractants for male Grapholita libertina (Lepidoptera: Tortricidae)

2002 ◽  
Vol 134 (5) ◽  
pp. 657-665 ◽  
Author(s):  
N.K. Hillier ◽  
P.L. Dixon ◽  
W.D. Seabrook ◽  
D.J. Larson
Keyword(s):  
Sex Pheromone ◽  
Field Testing ◽  
Field Trials ◽  
Female Sex Pheromone ◽  
Sex Attractants ◽  
Monitoring Method ◽  
Female Sex ◽  
Naturally Occurring ◽  
Important Pest

AbstractIn an effort to develop an efficient monitoring method for the lingonberry fruitworm, Grapholita libertina Heinrich, an economically important pest of lingonberries, Vaccinium vitis-idaea L. var. minus Lodd. (Ericaceae), in Newfoundland, various known sex attractants for other species of the genus Grapholita Treitschke were evaluated for their ability to attract G. libertina moths in field trials in eastern Newfoundland. The chemicals tested were (E,E)-8,10-dodecadien-1-ol acetate (EE8,10-12:Ac), (E)-8-dodecen-1-ol acetate (E8-12:Ac), (Z)-8-dodecen-1-ol acetate (Z8-12:Ac), and (Z)-8-dodecen-1-ol (Z8-12:OH). Field trials in 1996 showed highest attraction to E8-12:Ac, with Z8-12:Ac and Z8-12:OH also being attractive. Trials in 1997 demonstrated that a blend of E8-12:Ac, Z8-12:Ac, and Z8-12:OH at a ratio of 85:10:5, respectively, was attractive to G. libertina males. All chemicals captured significantly more moths than did controls and all moths examined were males indicating these chemicals may be constituents of the naturally occurring female sex pheromone.

Field Tests with Sex Attractants of Diachrysia chrysitis and D. tutti (Lepidoptera: Noctuidae) at Several Sites in Hungary

1988 ◽  
Vol 43 (5-6) ◽  
pp. 463-466 ◽  
Author(s):  
M. Tóth ◽  
G. Szőcs ◽  
J. Molnár ◽  
I. Szarukán
Keyword(s):  
Field Tests ◽  
The West ◽  
Sex Attractants ◽  
Lepidoptera Noctuidae

Sex attractants for the sibling taxa Diachrysia chrysitis (L.) s.str. and D. tutti (Kost.) were field tested on 9 sites in Hungary. Catches with the two already described attractant blends, Z-5-10:Ac/Z-7-10:Ac in ratios 10:1 and 2:100, were similar to earlier results obtained in areas more to the west, chrysitis s.str. type males responding to the 10:1 while tutti type males to the 2:100 ratio. Substantial chrysitis s.str. catches were also obtained by the intermediate 1:1 blend. On all 9 sites the two taxa were co-occurring.

SPATIAL AND TEMPORAL VARIABILITY IN SEX ATTRACTANT TRAP CATCHES OF LEUCANIA COMMOIDES AND PERIDROMA SAUCIA (LEPIDOPTERA: NOCTUIDAE) IN RELATION TO THEIR BIOLOGY IN MANITOBA

1983 ◽  
Vol 115 (12) ◽  
pp. 1573-1582 ◽  
Author(s):  
G. L. Ayre ◽  
W. J. Turnock ◽  
D. L. Struble
Keyword(s):  
Sex Attractant ◽  
Spatial And Temporal Variability ◽  
Sex Attractants ◽  
Test Species ◽  
Peridroma Saucia ◽  
By Catch ◽  
Species Specific ◽  
Trap Catches ◽  
Lepidoptera Noctuidae ◽  
Apparent Influence

AbstractIntertrap variability in catches of moths of the cutworms Leucania commoides Guenée and Peridroma saucia (Hübner) was tested by placing two traps for each species baited with artificial sex attractants at 1.6 km (1 mi) intervals to form a grid covering 64 km2 (25 mi2) near Domain, Manitoba. During the flight periods of the test species the attractants were 86.5 and 93.6% species-specific for L. commoides and P. saucia respectively. Moth catches varied between traps and flights, but the ranking of the traps by catch for each species was consistent during any given flight of L. commoides and during the first flight of P. saucia. The low intertrap variability in numbers captured of both species indicated the moths were uniformly distributed in the area. For L. commoides 10 traps within an area of 64 km2 would be required to give a population estimate within 20% of the true mean and for P. saucia three traps would be needed. The flights of L. commoides started abruptly each year and appeared to be triggered by rainfall. Flights of P. saucia did not occur below 10 °C but otherwise weather had no apparent influence on the flights. It was concluded that the moths of this species are blown in from the south each spring. Neither species showed a consistent distributional relationship with crops.

FIELD EVALUATION OF BLACKLIGHT AND SEX ATTRACTANT TRAPS FOR MONITORING SEASONAL DISTRIBUTION OF THE DARKSIDED CUTWORM (LEPIDOPTERA: NOCTUIDAE) IN ONTARIO

1982 ◽  
Vol 114 (12) ◽  
pp. 1121-1125 ◽  
Author(s):  
H. H. Cheng ◽  
D. L. Struble
Keyword(s):  
Sex Attractant ◽  
Field Tests ◽  
Ground Level ◽  
Field Evaluation ◽  
Seasonal Distribution ◽  
Pest Species ◽  
Above Ground Level ◽  
Euxoa Messoria ◽  
Lepidoptera Noctuidae

AbstractField tests were conducted annually near Delhi, Ontario from 1977 to 1981 to evaluate blacklight and sex attractant traps for monitoring adult populations of the darksided cutworm, Euxoa messoria (Harris), in the major tobacco-producing area. There were no significant differences between the catches of sex attractant traps set at 1.0 m and 0.5 m above ground level. Sex attractant traps were superior to blacklight traps for monitoring populations of this pest species. There was a variation in abundance from year to year, but the time of peak occurrence of E. messoria adults was the same in each of the 5 years.

scholarly journals Evaluation of indigenous the nucleopolyhedrovirus (NPV) of Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) in combination with chlorantraniliprole against Spodoptera species

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Ghulam Sarwar ◽  
Naeem Arshad Maan ◽  
Muhammad Ahsin Ayub ◽  
Muhammad Rafiq Shahid ◽  
Mubasher Ahmad Malik ◽  
...  
Keyword(s):  
Larval Mortality ◽  
Adult Emergence ◽  
Lethal Concentration ◽  
Pest Species ◽  
Vegetable Crops ◽  
Chemical Insecticide ◽  
Larval Instars ◽  
Novel Method ◽  
High Larval Mortality ◽  
Lepidoptera Noctuidae

Abstract Background The armyworms, Spodoptera exigua (Hübner), and S. litura (Fabricius) (Lepidoptera: Noctuidae) are polyphagous pests of many cash crops. Heavy crop losses have been reported for the fruit and vegetable crops each year owing to the diverse impact on global economies. The present study was aimed to sort out a novel method of pest control using the insect’s own nucleopolyhedrosis virus (NPV) alone and in combination with a new chemistry insecticide chlorantraniliprole. Results In the study, the effect of indigenous isolated nucleopolyhedrovirus (NPV) and the chemical insecticide (chlorantraniliprole) formulations against the 2nd and 4th larval instars of S. litura and S. exigua, collected from the different geographical region of Punjab (Pakistan) province, was evaluated. Three concentrations of the NPV isolate, sub-lethal (1 × 104, 6 × 104 POB ml−1), lethal (3 × 105 POB ml−1), and chlorantraniliprole 0.01 μl l−1, were applied alone and in combination against the 2nd and 4th larval instars of both pest species. The lethal concentration of NPV + chlorantraniliprole exhibited synergistic interaction and caused high larval mortality against both instars, while in all other combinations, additive effect was observed. Moreover, NPV + chlorantraniliprole at lethal concentration exhibited decreased pupation, adult emergence, and egg eclosion. Conclusion The implications of using NPV alone and in combination with an insecticide are discussed briefly in this study.

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