Control of Spodoptera littoralis through moth and eggs treatment with Bacillus thuringiensis

1985 ◽  
Vol 6 (01) ◽  
pp. 49-53
Author(s):  
H. S. Salama
Keyword(s):  
Bacillus Thuringiensis ◽  
Spodoptera Littoralis

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.

Microbial control of the cotton leafworm Spodoptera littoralis (Boisd.) by Egyptian Bacillus thuringiensis isolates

2012 ◽  
Vol 58 (2) ◽  
pp. 155-162 ◽  
Author(s):  
Ahlam A. Alfazairy ◽  
Amani M. D. El-Ahwany ◽  
Eman A. Mohamed ◽  
Heba A. H. Zaghloul ◽  
Ehab R. El-Helow
Keyword(s):  
Bacillus Thuringiensis ◽  
Spodoptera Littoralis ◽  
Microbial Control ◽  
Cotton Leafworm

Histopathological effects and determination of the putative receptor of Bacillus thuringiensis Cry1Da toxin in Spodoptera littoralis midgut

2013 ◽  
Vol 112 (2) ◽  
pp. 142-145 ◽  
Author(s):  
Dalel BenFarhat-Touzri ◽  
Marwa Saadaoui ◽  
Lobna Abdelkefi-Mesrati ◽  
Imen Saadaoui ◽  
Hichem Azzouz ◽  
...  
Keyword(s):  
Bacillus Thuringiensis ◽  
Spodoptera Littoralis ◽  
Putative Receptor ◽  
Histopathological Effects

Inheritance of Resistance to the Bacillus thuringiensis CrylC Toxin in Spodoptera littoralis (Lepidoptera: Noctuidae)

1997 ◽  
Vol 90 (4) ◽  
pp. 873-878 ◽  
Author(s):  
Josette Chaufaux ◽  
Judy MÛller-Cohn ◽  
Christophe Buisson ◽  
Vincent Sanchis ◽  
Didier Lereclus ◽  
...  
Keyword(s):  
Bacillus Thuringiensis ◽  
Spodoptera Littoralis ◽  
Inheritance Of Resistance ◽  
Lepidoptera Noctuidae
Sign in / Sign up

Export Citation Format

Share Document