Biological Activity of Trichilia americana (Meliaceae) on Copitarsia decolora Guenée (Lepidoptera: Noctuidae)

2019 ◽  
Vol 54 (2) ◽  
pp. 131
Author(s):  
Rodolfo Figueroa Brito ◽  
Elyda Hernández Miranda ◽  
Víctor Rogelio Castrejón Gómez
Keyword(s):  
Biological Activity ◽  
Trichilia Americana ◽  
Lepidoptera Noctuidae

scholarly journals Biological activity of sugarcane pyroligneous acid against Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) larvae

2013 ◽  
Vol 12 (43) ◽  
pp. 6241-6244 ◽  
Author(s):  
Antunes Freitas Ferreira Douglas ◽  
Barbosa Ferreira Marcos ◽  
Favero Silvio ◽  
Alex Carlos ◽  
Carollo re
Keyword(s):  
Biological Activity ◽  
Spodoptera Frugiperda ◽  
Pyroligneous Acid ◽  
Lepidoptera Noctuidae

scholarly journals AKTIVITAS EKSTRAK BIJI TANAMAN MINDI MELIA AZEDARACH (L.) TERHADAP SPODOPTERA LITURA (F.) (LEPIDOPTERA: NOCTUIDAE)

2005 ◽  
Vol 5 (1) ◽  
pp. 11-16
Author(s):  
Hamdani Hamdani
Keyword(s):  
Biological Activity ◽  
Insecticidal Activity ◽  
Spodoptera Litura ◽  
Developmental Time ◽  
Seed Extract ◽  
Melia Azedarach ◽  
The Third ◽  
First Instar ◽  
Lepidoptera Noctuidae

Activity of Melia azedarach (L.) seed extract against armyworm Spodoptera litura (F.) (Lepidoptera: Noctuidae). This study was conducted to evaluate the effectivenes and biological activity of Melia azedarach L. (Meliaceae) seed extract against armyworm, Spodoptera litura F. The first instar larvae were fed extract-treated cotton leaves for 2 days, then were maintained on untreated leaves until the third instar stage. Records were kept in regard to the larvae mortality and developmental time of surviving larvae from first instar to third instar. The result showed that Melia azedarach L. seed extract at consentration of 50 g of seeds/l of water (5%) exhibited moderate insecticidal activity against S. litura larvae (43.33 - 68.33% mortality). Addition of detergen at 0.2% to extract did not increase insecticidal activity of the extract. However, boiling seed extract at consentration of 50 g of seeds/l of water (5%) during 10 until 20 minutes increased insecticidal activity of extract (66.67 - 68.33% mortality). Generally, M. azedarach seed extract treatment did not affect  developmental time of  S. litura larvae.

scholarly journals Combinational Effect of Rumex tingitanus (Polygonaceae) Hexane Extract and Bacillus thuringiensis  δ-Endotoxin against Spodoptera littoralis (Lepidoptera: Noctuidae)

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Dhekra Mhalla ◽  
Dalel Ben Farhat-Touzri ◽  
Slim Tounsi ◽  
Mohamed Trigui
Keyword(s):  
Biological Activity ◽  
Chemical Composition ◽  
Bacillus Thuringiensis ◽  
Synergistic Effect ◽  
Spodoptera Littoralis ◽  
Insect Pests ◽  
Hexane Extract ◽  
Active Fraction ◽  
Lepidoptera Noctuidae ◽  
Potential Use

The increasing insect resistance against Bacillus thuringiensis delta-endotoxins is a serious problem which makes it urgent to look for new eco-friendly strategies. Combining these toxins with other biomolecules is one of the promising strategies against insect pests. In this work, we evaluated the bioinsecticidal potential of Rumex tingitanus extracts and B. thuringiensis strain BLB250 against Spodoptera littoralis (Lepidoptera: Noctuidae) larvae. The chemical composition of the hexane extract, the most active fraction, was analyzed to validate the correlation between chemical composition and biological activity. Among the tested extracts, only the hexanic extract showed toxicity against first and second instar larvae with LC50 of 2.56 and 2.95 mg g−1, respectively. The Bacillus thuringiensis BLB250 delta-endotoxins showed toxicity with an LC50 of 56.3 μg g−1. Therefore, the investigated combinational effect of BLB250 delta-endotoxins and R. tingitanus hexane extract proved significant synergistic effect against S. littoralis larvae. The GC-MS analysis of R. tingitanus hexane extract showed the richness of this extract in phytosterols such as β and γ-sitosterol (48.91%), campesterol (6.43%), and β-amyrin (8.92%) which are known for their insecticidal activity. This novel finding highlights the potential use of this combination against insect pests to prevent the appearance of resistance problems.

Biological activity of essential oils from seven Azorean plants againstPseudaletia unipuncta(Lepidoptera: Noctuidae)

2010 ◽  
Vol 134 (4) ◽  
pp. 346-354 ◽  
Author(s):  
J. S. Rosa ◽  
C. Mascarenhas ◽  
L. Oliveira ◽  
T. Teixeira ◽  
M. C. Barreto ◽  
...  
Keyword(s):  
Biological Activity ◽  
Essential Oils ◽  
Lepidoptera Noctuidae

scholarly journals Biological Activity of Phytochemicals from Agricultural Wastes and Weeds on Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)

2021 ◽  
Vol 13 (24) ◽  
pp. 13896
Author(s):  
Analleli Jiménez-Durán ◽  
Josefina Barrera-Cortés ◽  
Laura Patricia Lina-García ◽  
Rosa Santillan ◽  
Ramón Marcos Soto-Hernández ◽  
...  
Keyword(s):  
Biological Activity ◽  
Emerging Adults ◽  
Insecticidal Activity ◽  
Spodoptera Frugiperda ◽  
Insect Pest ◽  
Ethanolic Extract ◽  
Low Fertility ◽  
Melia Azedarach ◽  
Cedrela Odorata ◽  
Lepidoptera Noctuidae

Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) is a polyphagous insect pest native to America. Due to its capacity for adaptation and migration, it is currently located in Africa, Asia, and Oceania, where it threatens agricultural crops. The ability of S. frugiperda to develop resistance to insecticides is one of the reasons for the continuous search for more effective, low-cost, and environmentally friendly control products. In the present work, the insecticidal activity of ethanolic and hexane extracts obtained from fresh and dehydrated leaves of Piper auritum Kunth (Piperales: Piperaceae), Piper umbellatum L. (Piperales: Piperaceae), and Cedrela odorata L. (Sapindales: Meliaceae) was studied against first instar larvae of S. frugiperda. The ethanolic extracts of the dehydrated leaves of C. odorata and P. auritum presented insecticidal activity as high (100% mortality at a concentration of 92 mg/cm2) as that obtained with the positive control, Melia azedarach L. (Sapindales: Meliaceae). The GC-MS analysis of the extracts revealed the presence of phytochemicals classified mainly into the groups of monoterpenes, sesquiterpenes, diterpenes, phenylpropanoids, alcohols, and fatty acids. P. auritum grows and propagates rapidly. In addition, due to its low toxicity in mammals and non-target insects, it is a plant with the potential to be used as a botanical insecticide. The exposure of S. frugiperda larvae to low concentrations of ethanolic extract of P. auritum allowed us to observe their biological activity in the development of this insect. The LC50 was 22.1 mg/cm2. At sublethal concentrations (LC21 and LC35) the low fertility of the emerging adults was noticeable.

Biological Activity of the Spinosyns, New Fermentation Derived Insect Control Agents, on Tobacco Budworm (Lepidoptera: Noctuidae) Larvae

1998 ◽  
Vol 91 (6) ◽  
pp. 1277-1283 ◽  
Author(s):  
Thomas C. Sparks ◽  
Gary D. Thompson ◽  
Herbert A. Kirst ◽  
Mark B. Hertlein ◽  
Larry L. Larson ◽  
...  
Keyword(s):  
Biological Activity ◽  
Tobacco Budworm ◽  
Insect Control ◽  
Lepidoptera Noctuidae

Biological Activity of SeMNPV, AcMNPV, and Three AcMNPV Deletion Mutants against Spodoptera exigua Larvae (Lepidoptera: Noctuidae)

2000 ◽  
Vol 75 (1) ◽  
pp. 28-35 ◽  
Author(s):  
Felix J.J.A Bianchi ◽  
Ineke Snoeijing ◽  
Wopke van der Werf ◽  
Ruud M.W Mans ◽  
Peter H Smits ◽  
...  
Keyword(s):  
Biological Activity ◽  
Spodoptera Exigua ◽  
Deletion Mutants ◽  
Lepidoptera Noctuidae

scholarly journals Toxicity of the Bt Protein Cry1Ac Expressed in Leaves of the Event of Transgenic Soybean Released in Paraguay Against Spodoptera cosmioides

2020 ◽  
Vol 12 (12) ◽  
pp. 107
Author(s):  
Cinthia Sosa ◽  
Victor Gómez ◽  
Maria Ramírez ◽  
Edgar Gaona ◽  
Magin Gamarra
Keyword(s):  
Biological Activity ◽  
Relative Humidity ◽  
Larval Survival ◽  
Transgenic Soybean ◽  
Total Period ◽  
Bt Protein ◽  
Soybean Leaves ◽  
Neonate Larvae ◽  
Lepidoptera Noctuidae ◽  
Larval Number

Spodoptera cosmioides Walk (Lepidoptera: Noctuidae) is a polyphagous species, considered a secondary pest in soybean crop. The Intacta soybean (Bt soybean) event was released in Paraguay with Bt proteins which are supposed to be toxic for caterpillars. However, the effects of these proteins in the Spodoptera cosmioides biology still uncertainty. This study evaluated the biological activity of Bt soybean in S. cosmioides that were fed on Bt and non-Bt soybean leaves under laboratory conditions. The experiment was carried out at the Laboratory of Entomology; temperature 26±2 ºC; relative humidity: 60±10%; photoperiod: 14:00 h where 150 neonate larvae were used per treatment. The period and viability of each stage, the mortality of larval, number of eggs and neonate per couple, and the period of larvae to adult were the assessed variables. Higher mortality was observed in larvae fed with intact soybeans, but without statistical differences with non-Bt soybeans. For larval survival, period, number and total period, no statistical differences were verified. Higher percentage of fertility was observed in soybeans non-Bt but no statistical differences.

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