Population Studies of
Heliothis
spp. (Lepidoptera: Noctuidae) on Tomato and Corn in Southeast Arkansas

Roltsch, William J.; Mayse, Mark A.

doi:10.1093/ee/13.1.292

Cited by 13 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3). This corroborates the results of Roltsch and Mayse (1984) who reported similarly high corn eanvorm egg numbers in corn when catches of corn earworm moths in traps were rather low. These data suggest that the relationship between catches of corn earworm in pheromone traps and egg numbers in corn is not a simple linear function.…”

Section: Results and Discussion Traps Versussupporting

confidence: 92%

“…Kehat et al (1982) reported that, in Israel, an increase in male catches of Helicoverpa armigera (Hiibner) on cotton was followed by an increase in larval density. In Arkansas, Roltsch and Mayse (1984) reported no correlation between catches of corn earworm in traps and egg numbers in tomato during late May and early June. In Louisiana, Leonard et al (1989) reported that catches of corn earworm in pheromone traps reflected egg population trends in area where cotton was the principal crop.…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Relationships Among Pheromone Trap Catches of Male Corn Earworm Moths (Lepidoptera: Noctuidae), Egg Numbers, and Phenology in Corn

1991

View full text Add to dashboard Cite

Relationships among catches of corn earworm moths, Helicoverpa (= Heliothis) zea (Boddie), in pheromone traps, numbers of corn earworm eggs, and corn ears with fresh silks were investigated in eight corn fields during a 2-year period in Brazos River Valley, Texas. Cross-correlation analysis indicated that the catches of corn earworm moths in pheromone traps were closely associated with egg numbers in seven of eight fields with a time differential varying between −1 to +2 days. Cross-correlation peaks for new silks versus eggs occurred with time differentials being mostly positive, indicating that corn earworm egg numbers reached a maximum after corn produced large numbers of fresh silks on ears.There was a weak but significant linear relationship between egg numbers and corn earworm catches in pheromone traps when corn was in the whorl stage of growth. A stepwise regression model of the form: log (eggs/ha + 1) = 3.71 + 0.22*log(S + 1)*log(T + 1) − 0.3*log(S + 1), where S = numbers of corn ears with new silks per hectare, and T = mean corn earworm moths per trap, explained 52.5% of the variance. These results emphasize the mediating effects of fresh silks on corn earworm oviposition on corn.

show abstract

Section: Results and Discussion Traps Versussupporting

confidence: 92%

Section: Introductionmentioning

confidence: 98%

Relationships Among Pheromone Trap Catches of Male Corn Earworm Moths (Lepidoptera: Noctuidae), Egg Numbers, and Phenology in Corn

1991

View full text Add to dashboard Cite

show abstract

“…However, as in the current study, such positive significant relationships between pheromone trap catch and associated field population densities are not always the case. For example, Roltsch and Mayse (1984) found no significant correlation between levels of H. zea male moths in pheromone traps and densities of H. zea eggs on tomato; Liebhold et al (1995) found no significant spatial correlation between male gypsy moth, Lymantria dispar (L.), trap catch and forest stand defoliation; and Mack and Backman (1994) reported that pheromone trap catch did not accurately determine whether a large number of lesser cornstalk borer moths, Elasmopalpus lignosellus (Zeller), were present in peanut fields.…”

Section: Discussionmentioning

confidence: 99%

Relationship between Euschistus conspersus (Hem., Pentatomidae) pheromone trap catch and canopy samples in processing tomatoes

Cullen¹,

Zalom²

2005

J Applied Entomology

View full text Add to dashboard Cite

This study identified statistically significant, and practically important, seasonal pheromone trap response dynamics of Euschistus conspersus (Uhler) in processing tomatoes in 12 fields over 5 years in California, USA. Commercial fields were monitored weekly using traps baited with Euschistus spp. pheromone and direct canopy shake samples. Regression analysis determined no significant relationship between the two sampling methods at any given time during the growing season. This result indicates that the number of E. conspersus recovered in pheromone traps cannot be expected to serve as a direct estimate of the surrounding field population density from week to week during the processing tomato growing season. However, E. conspersus response to pheromone traps was characterized by differential attraction across the sample dates and elevated response early in the growing season relative to the associated field population. Among the most important findings of this work are differential responses of female and male E. conspersus to pheromone traps by crop phenology stage, and the fact that female-biased trap catch coincided with elevated trap response relative to the surrounding field population early in the growing season during tomato vegetative growth through flowering phenology stages. These results, when coupled with further E. conspersus reproductive biology studies, suggest that growers and crop consultants will be able to rely on E. conspersus pheromone trap catch patterns identified in this study to implement pheromone trap monitoring and phenology-based timing of insecticide treatment targeting E. conspersus nymphal stages in processing tomatoes.

show abstract

“…Entry of larvae into fruit increases frequency of plant disease. Research in southern Arkansas tomato fields indicated that although tobacco budworm was present from May through July, they were not nearly as abundant or damaging as corn earworm (Roltsch and Mayse 1984).…”

Section: Damagementioning

confidence: 99%

Tobacco Budworm, Heliothis virescens (Fabricius) (Insecta: Lepidoptera: Noctuidae)

Capinera

2012

EDIS

View full text Add to dashboard Cite

The tobacco budworm, Heliothis virescens (Fabricius), is a native species and is found throughout the eastern and southwestern United States. It is principally a field crop pest, attacking such crops as alfalfa, clover, cotton, flax, soybean, and tobacco. Larvae bore into buds and blossoms (the basis for the common name of this insect), and sometimes the tender terminal foliar growth, leaf petioles, and stalks. This revised 6-page fact sheet was written by J. L. Capinera and published by the UF Department of Entomology and Nematology, October 2012. EENY-219/IN376: Tobacco Budworm, Heliothis virescens (Fabricius) (Insecta: Lepidoptera: Noctuidae) (ufl.edu)

show abstract

Population Studies of Heliothis spp. (Lepidoptera: Noctuidae) on Tomato and Corn in Southeast Arkansas

Cited by 13 publications

References 0 publications

Relationships Among Pheromone Trap Catches of Male Corn Earworm Moths (Lepidoptera: Noctuidae), Egg Numbers, and Phenology in Corn

Relationships Among Pheromone Trap Catches of Male Corn Earworm Moths (Lepidoptera: Noctuidae), Egg Numbers, and Phenology in Corn

Relationship between Euschistus conspersus (Hem., Pentatomidae) pheromone trap catch and canopy samples in processing tomatoes

Tobacco Budworm, Heliothis virescens (Fabricius) (Insecta: Lepidoptera: Noctuidae)

Contact Info

Product

Resources

About