Fusarium graminearum Mycotoxins in Maize Associated With Striacosta albicosta (Lepidoptera: Noctuidae) Injury

2018 ◽  
Vol 111 (3) ◽  
pp. 1227-1242 ◽  
Author(s):  
Jocelyn L Smith ◽  
Victor Limay-Rios ◽  
David C Hooker ◽  
Arthur W Schaafsma
Keyword(s):  
Fusarium Graminearum ◽  
Striacosta Albicosta ◽  
Lepidoptera Noctuidae

scholarly journals The mitochondrial genome of the western bean cutworm, Striacosta albicosta (Lepidoptera: Noctuidae)

2016 ◽  
Vol 1 (1) ◽  
pp. 487-488 ◽  
Author(s):  
Brad S. Coates ◽  
Craig A. Abel
Keyword(s):  
Mitochondrial Genome ◽  
Western Bean Cutworm ◽  
Striacosta Albicosta ◽  
Lepidoptera Noctuidae

Baseline Susceptibility of Striacosta albicosta (Lepidoptera: Noctuidae) in Ontario, Canada to Vip3A Bacillus thuringiensis Protein

2017 ◽  
Vol 111 (1) ◽  
pp. 65-71 ◽  
Author(s):  
Yasmine Farhan ◽  
Jocelyn L Smith ◽  
Arthur W Schaafsma
Keyword(s):  
Bacillus Thuringiensis ◽  
Striacosta Albicosta ◽  
Lepidoptera Noctuidae

scholarly journals Cost-Effective Binomial Sequential Sampling of Western Bean Cutworm, Striacosta albicosta (Lepidoptera: Noctuidae), Egg Masses in Corn

2011 ◽  
Vol 104 (6) ◽  
pp. 1900-1908 ◽  
Author(s):  
S. Paula-Moraes ◽  
E. C. Burkness ◽  
T. E. Hunt ◽  
R. J. Wright ◽  
G. L. Hein ◽  
...  
Keyword(s):  
Sequential Sampling ◽  
Cost Effective ◽  
Egg Masses ◽  
Western Bean Cutworm ◽  
Striacosta Albicosta ◽  
Lepidoptera Noctuidae

The Second Report of the Western Bean Cutworm,Striacosta albicosta(Smith) (Lepidoptera: Noctuidae) as a Dominant Corn Pest in Mexico

2016 ◽  
Vol 118 (3) ◽  
pp. 389-392 ◽  
Author(s):  
Sergio R. Sánchez-Peña ◽  
Reyna Ivonne Torres-Acosta ◽  
Diego Camacho-Ponce
Keyword(s):  
Western Bean Cutworm ◽  
Striacosta Albicosta ◽  
Lepidoptera Noctuidae

Susceptibility of Different Instars of Striacosta albicosta (Lepidoptera: Noctuidae) to Vip3A, a Bacillus thuringiensis (Bacillaceae: Bacillales) Protein

2019 ◽  
Vol 112 (5) ◽  
pp. 2335-2344 ◽  
Author(s):  
Yasmine Farhan ◽  
Jocelyn L Smith ◽  
Arthur W Schaafsma
Keyword(s):  
Bacillus Thuringiensis ◽  
Resistance Management ◽  
High Dose ◽  
Transgenic Corn ◽  
Resistance Development ◽  
Significant Difference ◽  
Survival And Development ◽  
Important Pest ◽  
Striacosta Albicosta ◽  
Lepidoptera Noctuidae

Abstract Striacosta albicosta (Smith) (Lepidoptera: Noctuidae) is an important pest of corn, Zea mays L. in the Great Lakes region, which can be controlled by transgenic corn expressing Vip3A protein from Bacillus thuringiensis. To inform insect resistance management, the susceptibility, survival, and development of first, third, and fifth instar S. albicosta to Vip3A was determined using protein-overlay and corn tissue bioassays. Tissue bioassays were also used to determine the quantity of corn tissues with and without Vip3A-expression consumed by various instars. In diet bioassays, third and fifth instars were significantly less susceptible to Vip3A compared with first instars; however, no significant difference was observed in susceptibility of older instars. In tissue bioassays, survival was lowest for larvae fed Vip3A-expressing tissues, ranging from 0 to 21%, however, developmental measures of larvae fed Vip3A-expressing tissues did not differ from those fed artificial diet or tissues of other Bt events. Consumption of Vip3A × Cry1Ab tissues did not differ from that of Cry1Ab for each instar. Estimated Vip3A exposure of first instars ranged from 3 to 57 times higher than the concentration required for 99% mortality (LC99) based on the product of the reported Vip3A expression in transgenic corn tissues and the consumption observed in tissue bioassays; however, the estimated exposure of third and fifth instars to Vip3A was lower than their respective LC99. These findings suggest that first instar S. albicosta maybe exposed to a high dose of Vip3A under field conditions; however, Vip3A-expression in corn may not be high dose against older instars, increasing the risk of resistance development.

scholarly journals Bifenthrin Baseline Susceptibility and Evaluation of Simulated Aerial Applications in Striacosta albicosta (Lepidoptera: Noctuidae)

2019 ◽  
Vol 112 (6) ◽  
pp. 2915-2922
Author(s):  
Débora G Montezano ◽  
Thomas E Hunt ◽  
Dariane Souza ◽  
Bruno C Vieira ◽  
Ana M Vélez ◽  
...  
Keyword(s):  
Active Ingredient ◽  
Resistance Management ◽  
Eastern United States ◽  
Spray Chamber ◽  
Aerial Application ◽  
Natural Behavior ◽  
Striacosta Albicosta ◽  
Lepidoptera Noctuidae ◽  
Control Failures ◽  
Field Failure

Abstract Striacosta albicosta (Smith) is a maize pest that has recently expanded its geographical range into the eastern United States and southeastern Canada. Aerial application of pyrethroids, such as bifenthrin, has been a major practice adopted to manage this pest. Reports of field failure of pyrethroids have increased since 2013. Striacosta albicosta populations were collected in 2016 and 2017 from maize fields in Nebraska, Kansas, and Canada and screened with bifenthrin active ingredient in larval contact dose-response bioassays. Resistance ratios estimated were generally low in 2016 (1.04- to 1.32-fold) with the highest LC50 in North Platte, NE (66.10 ng/cm2) and lowest in Scottsbluff, NE (50.10 ng/cm2). In 2017, O’Neill, NE showed the highest LC50 (100.66 ng/cm2) and Delhi, Canada exhibited the lowest (6.33 ng/cm2), resulting in a resistance ratio variation of 6.02- to 15.90-fold. Implications of bifenthrin resistance levels were further investigated by aerial application simulations. Experiments were conducted with a spray chamber where representative S. albicosta populations were exposed to labeled rates of a commercial bifenthrin formulation. Experiments resulted in 100% mortality for all populations, instars, insecticide rates, and carrier volumes, suggesting that levels of resistance estimated for bifenthrin active ingredient did not seem to impact the efficacy of the correspondent commercial product under controlled conditions. Results obtained from this research indicate that control failures reported in Nebraska could be associated with factors other than insecticide resistance, such as issues with the application technique, environmental conditions during and/or after application, or the insect’s natural behavior. Data generated will assist future S. albicosta resistance management programs.

scholarly journals Life-History Parameters of Striacosta albicosta (Lepidoptera: Noctuidae) Under Laboratory Conditions

2019 ◽  
Vol 19 (4) ◽  
Author(s):  
Débora G Montezano ◽  
Thomas E Hunt ◽  
Alexandre Specht ◽  
Priscila M C Luz ◽  
Julie A Peterson
Keyword(s):  
United States ◽  
Great Plains ◽  
The United States ◽  
Developmental Time ◽  
Pupal Weight ◽  
Growth Ratio ◽  
Laboratory Conditions ◽  
Striacosta Albicosta ◽  
Western Great Plains ◽  
Lepidoptera Noctuidae

Abstract Striacosta albicosta (Smith) is a key pest of maize and dry beans in North America. It has expanded its distribution from the western Great Plains of the United States to the Great Lakes region in the United States and Canada. There has been limited research on the baseline biological aspects of this insect under controlled conditions. The objective of this study was to detail the biological parameters of S. albicosta feeding on an artificial diet under laboratory conditions. Overall survival from neonate to adult at 26.6 ± 1°C was 36.72% and the total developmental time was approximately 110 d. Survival of the egg, larval, prepupal, and pupal stages were 75.71, 98.50, 51.78, and 95.10%, respectively. Average duration of the egg, larval, prepupal, and pupal stages was 4.64, 28.20, 41.50, and 25.91 d, respectively. During the larval stage, 92.50% of larvae developed through seven instars and the remaining through six instars. Larvae that developed through six and seven instars exhibited a mean growth ratio of 1.60 and 1.47, respectively; however, there was no difference in pupal weight. Eggs laid by field-mated moths showed a fertility of 75.71%, compared with 4.18% from laboratory-reared moths. These data suggest that S. albicosta develop primarily through seven instars and the most vulnerable developmental stage is the prepupa. Laboratory conditions strongly affected fertility success. Information presented here greatly expands our understanding of S. albicosta biology, which can be used to improve the efficiency of laboratory bioassays and management techniques for this critical crop pest.

Establishment of Striacosta albicosta (Lepidoptera: Noctuidae) as a Primary Pest of Corn in the Great Lakes Region

2018 ◽  
Vol 111 (4) ◽  
pp. 1732-1744 ◽  
Author(s):  
J L Smith ◽  
T S Baute ◽  
M M Sebright ◽  
A W Schaafsma ◽  
C D DiFonzo
Keyword(s):  
Great Lakes ◽  
Great Lakes Region ◽  
Striacosta Albicosta ◽  
Lepidoptera Noctuidae
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