Influence of Postemergence Herbicides on Populations of Bean Leaf Beetle, Cerotoma trifurcata (Coleoptera: Chrysomelidae), and Corn Earworm, Heliothis zea (Lepidoptera: Noctuidae), in Soybeans

1986 ◽  
Vol 79 (1) ◽  
pp. 261-265 ◽  
Author(s):  
A. M. Agnello ◽  
J. W. van Duyn ◽  
J. R. Bradley
Keyword(s):  
Heliothis Zea ◽  
Leaf Beetle ◽  
Corn Earworm ◽  
Cerotoma Trifurcata ◽  
Bean Leaf Beetle ◽  
Postemergence Herbicides ◽  
Lepidoptera Noctuidae

Climate and host plant availability impact the future distribution of the bean leaf beetle (Cerotoma trifurcata)

2014 ◽  
Vol 20 (9) ◽  
pp. 2778-2792 ◽  
Author(s):  
Emily A. Berzitis ◽  
Jordan N. Minigan ◽  
Rebecca H. Hallett ◽  
Jonathan A. Newman
Keyword(s):  
Host Plant ◽  
Leaf Beetle ◽  
Cerotoma Trifurcata ◽  
Plant Availability ◽  
Bean Leaf Beetle ◽  
The Future

COMPARATIVE PERFORMANCE OF STANDARD AND MODIFIED PHEROMONE-BAITED WING TRAPS FOR CAPTURING HELIOTHIS ZEA (BODDIE)1 (LEPIDOPTERA: NOCTUIDAE)

1989 ◽  
Vol 24 (4) ◽  
pp. 482-488
Author(s):  
H. R. Gross ◽  
J. E. Carpenter
Keyword(s):  
Heliothis Zea ◽  
Corn Earworm ◽  
Cotton Bollworm ◽  
Hardware Cloth ◽  
Comparative Performance ◽  
Equivalent Distance ◽  
Lepidoptera Noctuidae

The wing trap, although economical and commercially available, has never been seriously considered as a standard for monitoring populations of the corn earworm (CEW)/cotton bollworm, Heliothis zea (Boddie), mainly because it is considered inefficient relative to other available traps. Attempts were made to enhance the performance of the Pherocon 1C (P-1C) wing trap by modifying its structure and by varying the placement of the pheromone within the trap. P-1C traps receiving 40–50 g of supplemental adhesive captured 5.1-fold more CEW males than did the P-1C standard. The introduction of horizontal barriers of either Lexan or hardware cloth across the center of the P-1C trap or the placement of Lexan strips to close side trap openings had no effect on the number of CEW males captured. Traps with the pheromone located 1.0–1.5 cm from the top center of the trap captured more males than did traps with the pheromone placed an equivalent distance from the bottom of the trap. Centering the pheromone approximately 2.5 cm back from the end opening of the trap also increased the number of CEW males captured over that of traps in which the pheromone was placed at the top center of the trap. Data suggest that parameters influencing the efficiency of P-1C traps for capturing male CEW are poorly understood.

scholarly journals Population Structure, Genetic Variability, and Gene Flow of the Bean Leaf Beetle,Cerotoma trifurcata, in the Midwestern United States

2014 ◽  
Vol 14 (62) ◽  
pp. 1-15
Author(s):  
Bamphitlhi Tiroesele ◽  
Steven R. Skoda ◽  
Thomas E. Hunt ◽  
Donald J. Lee ◽  
Jaime Molina-Ochoa ◽  
...  
Keyword(s):  
United States ◽  
Population Structure ◽  
Gene Flow ◽  
Genetic Variability ◽  
Leaf Beetle ◽  
Cerotoma Trifurcata ◽  
Midwestern United States ◽  
Bean Leaf Beetle

Big-Eyed Bugs (Hemiptera: Lygaeidae) and the Striped Lynx Spider (Araneae: Oxyopidae): Intra- and Interspecific Interference on Predation of First Instar Corn Earworm (Lepidoptera: Noctuidae)

1990 ◽  
Vol 25 (1) ◽  
pp. 30-33 ◽  
Author(s):  
L. P. Guillebeau ◽  
J. N. All
Keyword(s):  
Pest Management ◽  
Feeding Rate ◽  
Heliothis Zea ◽  
Corn Earworm ◽  
Laboratory Studies ◽  
Optimum Density ◽  
First Instar ◽  
Arthropod Predators ◽  
Lepidoptera Noctuidae

To understand agroecology and to increase the role of entomophages in pest management, it is important to understand interactions among arthropod predators. Laboratory studies were conducted with 1–2 adult big-eyed bugs, (BEB) Geocoris spp., 1–2 striped lynx spiders (SLS), Oxyopes salticus Hentz (lst–3rd instar), or one of each to investigate conspecific and interspecific interference of predation on 1st instar Heliothis zea Boddie in the laboratory. The number of 1st instar H. zea consumed per individual in 24 h fell significantly when two adult BEB were confined together compared with the number consumed by solitary BEB. Placing two juvenile SLS together did not reduce the number of larvae consumed per individual in 24 h. The combined feeding rate of one BEB and one SLS confined together fell well below the sum of the rates for solitary BEB and SLS, but it was unclear to what degree each predator's feeding rate was reduced. These results suggest that exceeding the optimum density of BEB and SLS in the field could reduce the biocontrol of H. zea provided by BEB.

POLYMORPHIC FORMS OF THE BEAN LEAF BEETLE, CEROTOMA TRIFURCATA (FORSTER) (COLEOPTERA: CHRYSOMELIDAE), IN SOYBEANS IN MISSISSIPPI: TRANSMISSION OF BEAN POD MOTTLE VIRUS.1

1989 ◽  
Vol 24 (4) ◽  
pp. 582-587 ◽  
Author(s):  
Henry N. Pitre
Keyword(s):  
Growing Season ◽  
Leaf Beetle ◽  
Transmission Efficiency ◽  
Field Population ◽  
Mottle Virus ◽  
Cerotoma Trifurcata ◽  
Bean Pod Mottle Virus ◽  
Bean Leaf Beetle ◽  
Polymorphic Forms ◽  
Soybean Plants

A field population of bean leaf beetle, Cerotoma trifurcata (Forster), adults on soybean, cv. Lee, in north Mississippi showed consistent frequencies of occurrence of polymorphic forms during the growing season. The greatest percentage of beetles were in the beige with spots category (62%), followed in order by beige without spots (27%), crimson with spots (8%), and crimson without spots (3%). Field-collected adults experimentally transmitted bean pod mottle virus from infected soybean plants, cv. Bragg, to healthy seedlings (1st trifoliolate) after a 24-h acquisition feeding on virus infected source plants with equal degrees of polymorph transmission efficiency (29 - 35%, n.s.).

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