Effect of Bt maize on the plant-aphid–parasitoid tritrophic relationships

BioControl ◽  
2010 ◽  
Vol 56 (2) ◽  
pp. 133-143 ◽  
Author(s):  
Belén Lumbierres ◽  
Petr Starý ◽  
Xavier Pons
Keyword(s):  
Bt Maize ◽  
Aphid Parasitoid

scholarly journals Resistance to Bt Maize by Western Corn Rootworm: Effects of Pest Biology, the Pest–Crop Interaction and the Agricultural Landscape on Resistance

Insects ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 136
Author(s):  
Aaron Gassmann
Keyword(s):  
Agricultural Landscape ◽  
Continuous Cultivation ◽  
Diabrotica Virgifera Virgifera ◽  
The United States ◽  
Western Corn Rootworm ◽  
Corn Rootworm ◽  
Agricultural Crop ◽  
Bt Maize ◽  
Bt Toxin ◽  
Resistance Evolution

The western corn rootworm, Diabrotica virgifera virgifera LeConte, is among the most serious pests of maize in the United States. Since 2003, transgenic maize that produces insecticidal toxins from the bacterium Bacillus thuringiensis (Bt) has been used to manage western corn rootworm by killing rootworm larvae, which feed on maize roots. In 2009, the first cases of field-evolved resistance to Bt maize were documented. These cases occurred in Iowa and involved maize that produced Bt toxin Cry3Bb1. Since then, resistance has expanded to include other geographies and additional Bt toxins, with some rootworm populations displaying resistance to all commercially available Bt traits. Factors that contributed to field-evolved resistance likely included non-recessive inheritance of resistance, minimal fitness costs of resistance and limited adult dispersal. Additionally, because maize is the primary agricultural crop on which rootworm larvae can survive, continuous maize cultivation, in particular continuous cultivation of Bt maize, appears to be another key factor facilitating resistance evolution. More diversified management of rootworm larvae, including rotating fields out of maize production and using soil-applied insecticide with non-Bt maize, in addition to planting refuges of non-Bt maize, should help to delay the evolution of resistance to current and future transgenic traits.

Status of resistance to Bt maize in Spodoptera frugiperda: Lessons from Puerto Rico

2012 ◽  
Vol 110 (3) ◽  
pp. 294-300 ◽  
Author(s):  
Nicholas P. Storer ◽  
Mary E. Kubiszak ◽  
J. Ed King ◽  
Gary D. Thompson ◽  
Antonio Cesar Santos
Keyword(s):  
Puerto Rico ◽  
Spodoptera Frugiperda ◽  
Bt Maize

Computer vision for detecting field‐evolved lepidopteran resistance to Bt maize

2021 ◽  
Author(s):  
Seth J. Dorman ◽  
Michael W. Kudenov ◽  
Amanda J. Lytle ◽  
Emily H. Griffith ◽  
Anders S. Huseth
Keyword(s):  
Computer Vision ◽  
Bt Maize ◽  
Lepidopteran Resistance

Toxic effects of seven pesticides to aphid parasitoid, Aphidius gifuensis (Hymenoptera: Braconidae) after contact exposure

2021 ◽  
pp. 105634
Author(s):  
Shenhang Cheng ◽  
Ronghua Lin ◽  
Caihong Yu ◽  
Rui Sun ◽  
Hui Jiang
Keyword(s):  
Toxic Effects ◽  
Aphid Parasitoid ◽  
Contact Exposure ◽  
Aphidius Gifuensis

Does refuge spillover affect arthropod food webs associated with Bt maize?

2021 ◽  
Author(s):  
Vitor Zuim ◽  
Vinicius M. Marques ◽  
Carolina T. D. Godoi ◽  
Lessando M. Gontijo ◽  
Marcelo M. Haro ◽  
...  
Keyword(s):  
Food Webs ◽  
Bt Maize

scholarly journals Managing resistance evolution to transgenic Bt maize in corn borers in Spain

2021 ◽  
pp. 1-19
Author(s):  
Fernando Álvarez-Alfageme ◽  
Yann Devos ◽  
Ana M. Camargo ◽  
Salvatore Arpaia ◽  
Antoine Messéan
Keyword(s):  
Bt Maize ◽  
Resistance Evolution ◽  
Corn Borers
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