Potential for Biological Control of Heliothis Species

King, E. G.; Coleman, R. J.

doi:10.1146/annurev.en.34.010189.000413

Cited by 84 publications

(18 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…zea per day (C ruz et al., 1995; C ruz and O liveira , 1997). Other groups of predators which occur in the corn ears are Chrysoperla carnea Stephens (Neuropt., Chysopidae), ants, coccinellids and spiders (K ing and C oleman , 1989).…”

Section: Introductionmentioning

confidence: 99%

Chlorpyrifos spraying of no‐tillage corn during tasselling and its effect on damage by Helicoverpa zea (Lep., Noctuidae) and on its natural enemies

Filho¹,

Lúcia²,

Cruz³

et al. 2002

J Applied Entomology

View full text Add to dashboard Cite

Corn plants were twice sprayed at 3‐day intervals during tasselling to evaluate the effect of chlorpyrifos on ear damage by H. zea and also on the populations of the natural enemies associated with this moth. The abundance of H. zea eggs and larvae and of predators on the whole plant, the egg parasitism by Trichogramma pretiosum Riley and the percentage of injured ears were sampled weekly. Chlorpyrifos did not show any significant effect on population levels and on ear damage by H. zea. Natural parasitism of eggs ranged from 52 to 75% and did not differ between treated and untreated plots; furthermore, the percentage of non viable eggs and adult emergence were not influenced by insecticide application. Among the predators found in the plots, Doru luteipes was not affected by spraying, whereas the abundance of Orius sp. decreased 21 days after insecticide application. The frequency of the ant Pheidole sp. was not affected by chlorpyrifos; however, foraging activity of Crematogaster sp. on treated plots was rapidly reduced and remained low during the following 2 weeks. The small number of damaged ears suggests that the insecticide did not affect the efficiency of the natural enemies of H. zea.

show abstract

Section: Introductionmentioning

confidence: 99%

Chlorpyrifos spraying of no‐tillage corn during tasselling and its effect on damage by Helicoverpa zea (Lep., Noctuidae) and on its natural enemies

Filho¹,

Lúcia²,

Cruz³

et al. 2002

J Applied Entomology

View full text Add to dashboard Cite

show abstract

“…armigera has been recorded as feeding on 181 different plant species and this pest can attack the most important agricultural crops, such as: cotton, sorghum, soybeans, maize, vegetables, and subsistence crops like chickpea and pigeon pea (Subramanian and Mohankumar, 2006). As stated by King and Coleman (1989), its major natural enemies are Microplitis croceipes and Bracon brevicornis (Hymenoptera: Braconidae), Trichogramma spp, Eucelatoria bryani and Archytas marmoratus (Diptera: Tachnidae), Chrysopa spp (Neuroptera: Chrysopidae), Coleomegilla maculata (Coleoptera: Coccinellidae), and Geocoris spp (Hemiptera: Geocoridae). Besides, H armigera larvae usually feed on flower buds and/ or fruits and because of this, they become protected from predators and parasites as well as exposed to sub lethal doses of insecticides.…”

Section: Discussionmentioning

confidence: 99%

“…In Brazil, regarding the agricultural years of 2012/2013, Spadotto et al (2014) pointed out that decreasing yields and rise in phytosanitary costs in cotton, corn, beans, sorghum, and millet resulted in US$ 2 billion of loss. On the other hand, Helicoverpa zea is an important pest of corn and a secondary one for cotton and tomatoes and is restricted to American continent (King and Coleman, 1989). According to Bird and Downes (2014), chemical control and transgenic crops expressing Bt toxins are the main strategies to control H. armigera and H. zea.…”

Section: Introductionmentioning

confidence: 99%

Research Article A RAPD-PCR-based genetic diversity analysis of Helicoverpa armigera and H. zea populations in Brazil.

Lopes¹,

Bastos²,

Boiteux³

et al. 2017

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. Helicoverpa armigera is the most significant pest of agriculture in Asia, Europe, Africa, and Australasia, causing damage to crops greater than US$2 billion annually and until 2013 it was not detected in Brazil. Helicoverpa zea is restricted to the American continent and is important to corn and a secondary pest of cotton and tomatoes. The wide range of crops exploited by H. armigera (mainly cotton, soybeans, chickpea, and corn), the possible mating between these species can promote population shifts, that could be assessed by RAPD-PCR technique. Therefore, the aim of this study was to determine the genetic diversity of H. armigera and H. zea populations by RAPD-PCR analysis. The most important result was the clustering of one H. armigera population in a group predominantly formed by H. zea. It could indicate a possible occurrence of an interspecific cross between these species. This is a concern to Brazilian agriculture due to the possibility of selection of hybrids well adapted to the American environment, which would be inherited from H. zea. The other noxious fact is the possible development of new biotypes resistant to insectides or Bt toxins expressed in transgenic crops, came from H. armigera gene pool.

show abstract

“…Terán-Vargas et al (2005) provided evidence of how the use of transgenic cotton reestablished susceptibility to pyrethroid by tobacco budworm in a region of Mexico. King and Coleman (1989) reviewed attempts to implement augmentative biological controls for the heliothines. In addition to the augmentative release of parasitoids, large-scale management efforts have been made with destruction of early-season hosts (Stadelbacher 1981), spraying early-season hosts with biological insecticides (Hardee et al 1999), and mass release of a sterile hybrid (H. virescens -H. subflexa) that induces male sterility and can be potential competitors for copulation with females (Laster et al 1988).…”

Section: English Translationmentioning

confidence: 99%

Estado Actual deHelicoverpa zeayHeliothis virescensDentro de Un Panorama Cambiante en el Sur de los Estados Unidos de Norte América y México

Molina-Ochoa

Hutchison

Blanco

2010

Southwestern Entomologist

View full text Add to dashboard Cite

Potential for Biological Control of Heliothis Species

Cited by 84 publications

References 0 publications

Chlorpyrifos spraying of no‐tillage corn during tasselling and its effect on damage by Helicoverpa zea (Lep., Noctuidae) and on its natural enemies

Chlorpyrifos spraying of no‐tillage corn during tasselling and its effect on damage by Helicoverpa zea (Lep., Noctuidae) and on its natural enemies

Research Article A RAPD-PCR-based genetic diversity analysis of Helicoverpa armigera and H. zea populations in Brazil.

Estado Actual deHelicoverpa zeayHeliothis virescensDentro de Un Panorama Cambiante en el Sur de los Estados Unidos de Norte América y México

Contact Info

Product

Resources

About