Results 271 to 280 of about 60,958 (293)

Spodoptera frugiperda (fall armyworm).

CABI Compendium, 2020
The fall armyworm, Spodoptera frugiperda, is a lepidopteran pest that feeds in large numbers on the leaves, stems and reproductive parts of more than 350 plant species, causing major damage to economically important cultivated grasses such as maize, rice,
I. Rwomushana
semanticscholar   +1 more source

Resistance of Spodoptera frugiperda (Lepidoptera:Noctuidae) to spinetoram: Inheritance and cross-resistance to spinosad.

Pest Management Science, 2020
BACKGROUND The use of spinosyn insecticides is one of the major control strategies of the fall armyworm, Spodoptera frugiperda (J. E. Smith) in Brazil. In this study, we selected a spinetoram-resistant strain from a field-population of S.
E. C. Lira, A. Bolzan, A. R. Nascimento, Fernando S. A. Amaral, R. H. Kanno, I. S. Kaiser, C. Omoto   +6 more
semanticscholar   +1 more source

In vitro biosynthesis of volicitin in Spodoptera litura

Insect Biochemistry and Molecular Biology, 2005
Volicitin [N-(17-hydroxylinolenoyl)-L-glutamine] and N-linolenoyl-L-glutamine, originally identified in the regurgitant of Spodoptera exigua, induce damaged corn leaves to release volatile compounds which enable parasitic wasps to locate host caterpillars.
Naoko Yoshinaga, Fumio Matsuda, Nobuyoshi Morigaki, Naoki Mori, Ritsuo Nishida   +4 more
openaire   +3 more sources

Insecticidal activity of pogostone against Spodoptera litura and Spodoptera exigua (Lepidoptera: Noctuidae)

Pest Management Science, 2013
AbstractBACKGROUNDEssential oil of Pogostemon cablin (Blanco) Benth. has been reported to exhibit strong insecticidal activities, but few studies have focused on the insecticidal activity of its main individual constituent, pogostone (PO). The goal of this research was to investigate the insecticidal activity of PO against two harmful noctuid insects ...
Ji Lin, Jian-Hui Xie, Song-Zhi Kong, Hong-Feng Wang, Zi-Ren Su, Jian-Nan Chen, Ji-Dong Xian, Yu-Cui Li, Si-Han huang   +8 more
openaire   +3 more sources

RNAi Screening in Spodoptera frugiperda

2016
RNA interference is a potent and precise reverse genetic approach to carryout large-scale functional genomic studies in a given organism. During the past decade, RNAi has also emerged as an important investigative tool to understand the process of viral pathogenesis.
Pawan Malhotra, Sunil Kumar Mukherjee, Raj K. Bhatnagar, Bindiya Sachdev, Gatikrushna Singh, Amit Kumar, Subhanita Ghosh   +6 more
openaire   +3 more sources

Selection and characterization of the Bacillus thuringiensis strains toxic to Spodoptera eridania (Cramer), Spodoptera cosmioides (Walker) and Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae)

Biological Control, 2009
Among the pests of cultivated plants, the Spodoptera species complex is one of the most important. This genus is composed of polyphagous insects that attack, among other crops, cotton, corn, soy and castor bean. In Brazil Spodoptera frugiperda has been recognized as a primary pest in cotton, and Spodoptera eridania (Cramer) and Spodoptera cosmioides ...
Rachel B dos Santos, Vinícius Fiúza Dumas, Pedro Manuel Oliveira Janeiro Neves, Karen B. dos Santos, Paulo Roberto Queiroz, Érica Soares Martins, L. B. Praça, Colin Berry, G. L. Villas Bôas, A. M. Meneguim, Rose Gomes Monnerat, W. J. Santos   +11 more
openaire   +2 more sources

Selection and characterization of the inheritance of resistance of Spodoptera frugiperda (Lepidoptera: Noctuidae) to chlorantraniliprole and cross-resistance to other diamide insecticides.

Pest Management Science, 2019
BACKGROUND Understanding the genetic basis of insect resistance to insecticides can help to implement insecticide resistance management (IRM) strategies. In this study, we selected a strain of Spodoptera frugiperda (J. E.
A. Bolzan, Fernando E. O. Padovez, A. R. Nascimento, I. S. Kaiser, E. C. Lira, Fernando S. A. Amaral, R. H. Kanno, J. B. Malaquias, C. Omoto   +8 more
semanticscholar   +1 more source

Development and Validation of Real-Time PCR Tests for the Identification of Four <I>Spodoptera</I> Species: <I>Spodoptera eridania</I>, <I>Spodoptera frugiperda</I>, <I>Spodoptera littoralis</I>, and <I>Spodoptera litura</I> (Lepidoptera: Noctuidae)

Journal of Economic Entomology, 2014
The genus Spodoptera comprises 31 species, 4 of which are listed as quarantine pests for the European Union: Spodoptera eridania (Cramer), Spodoptera frugiperda (Smith), Spodoptera littoralis (Boisduval), and Spodoptera litura (F.). In international trade, the earlier life stages (eggs and larvae) are being intercepted at point of inspection most ...
M. J. Van Der Straten, B.T.L.H. Van De Vossenberg   +1 more
openaire   +2 more sources

Low susceptibility of Spodoptera cosmioides, Spodoptera eridania and Spodoptera frugiperda (Lepidoptera: Noctuidae) to genetically-modified soybean expressing Cry1Ac protein

Crop Protection, 2014
Spodoptera cosmioides (Walker), Spodoptera eridania (Stoll) and Spodoptera frugiperda (J. E. Smith) have caused significant damage on soybean Glycine max (L.) Merrill in Brazil. Genetically-modified MON 87701 × MON 89788 soybean that expresses the Cry1Ac protein is potentially an alternative tool for the management of these species.
Oderlei Bernardi, Rodrigo J. Sorgatto, Alexandre D. Barbosa, Felipe A. Domingues, Patrick M. Dourado, Renato A. Carvalho, Samuel Martinelli, Graham P. Head, Celso Omoto   +8 more
openaire   +2 more sources

Intermediates of stigmasterol metabolism in spodoptera littoralis

Steroids, 1989
Stigmasterol-24,28-epoxide, 22E-stigmasta-5,22,24(28E)-trien-3 beta-ol, and 22E-cholesta-5,22,24-trien-3 beta-ol were identified as normal metabolites of [3H]stigmasterol in Spodoptera littoralis larvae. Relative concentrations of all three of these metabolites increased when a diazasterol inhibitor was fed in combination with stigmasterol in the ...
Huw H. Rees, Nigel Hoggard, Malcolm J. Thompson, James A. Svoboda   +3 more
openaire   +3 more sources