Efficacy of Soybean’s Event DAS-81419-2 Expressing Cry1F and Cry1Ac to Manage Key Tropical Lepidopteran Pests Under Field Conditions in Brazil
| Autor: | L.H.S. Zobiole, Jonathan M. Babcock, D. M. Rule, Pablo Valverde-Garcia, Antonio Cesar dos Santos, Oscar A. B. N. Silva, Luiz H. Marques, Jaédino Rossetto, Odair Aparecido Fernandes, Valéria F. Moscardini, Boris A. Castro |
|---|---|
| Přispěvatelé: | Dow AgroSciences Industrial Ltda, Dow AgroSciences LLC, Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Insecticides Plant Resistance Bacillus thuringiensis Moths 01 natural sciences Insect Control Crop Lepidoptera genitalia Conkesta Hemolysin Proteins Bacterial Proteins Species Specificity Chrysodeixis includens Animals Heliothis virescens Pest Control Biological Ecology biology Bacillus thuringiensis Toxins fungi food and beverages General Medicine biology.organism_classification Plants Genetically Modified Anticarsia gemmatalis Endotoxins 010602 entomology Agronomy Cry1Ac Insect Science Larva Noctuidae Soybeans Spodoptera cosmioides Brazil 010606 plant biology & botany |
| Zdroj: | Journal of Economic Entomology Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1938-291X 0022-0493 |
| Popis: | Made available in DSpace on 2018-12-11T17:05:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-08-01 Bacillus thuringiensis (Bt) event DAS-81419-2 (Conkesta technology) in soybean, Glycine max (L.) Merrill, expresses Cry1F and Cry1Ac proteins to provide protection from feeding by several lepidopteran pests. A total of 27 field experiments across nine locations were conducted from 2011 to 2015 in southern and central Brazil to characterize the efficacy of DAS-81419-2 soybean infested with Anticarsia gemmatalis Hübner (Lepidoptera: Erebidae), Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae), Heliothis virescens (F.) (Lepidoptera: Noctuidae), and Spodoptera cosmioides (Walker) (Lepidoptera: Noctuidae) during vegetative (V4) and reproductive (R2 and R4) crop developmental stages. The efficacy of DAS-81419-2 was compared to that of a non-Bt isogenic variety managed with or without applications of commercial foliar insecticides for lepidopteran control. DAS-81419-2 soybean consistently experienced defoliation levels of 0.5% or less (compared with 20.05-56.74% in the non-Bt, nonsprayed treatment) and larval survival of < 0.1% in all four species across the vegetative and reproductive plant stages evaluated. The efficacy of DAS-81419-2 was significantly higher than commercial foliar insecticides applied to the non-Bt variety. DAS-81419-2 soybeans containing two highly effective Bt proteins are expected to be a more robust IRM tool compared to single-trait Bt technologies. The consistent efficacy of DAS-81419-2 soybeans across years, locations, and crop stages suggests that it will be a valuable product for management of hard-to-control key lepidopteran pests in South American soybean production. Dow AgroSciences Industrial Ltda, Av. Nações Unidas 14.171 - Diamond Tower Dow AgroSciences LLC, 9330 Zionsville Rd. Departamento de Fitossanidade FCAV/UNESP Departamento de Fitossanidade FCAV/UNESP |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|