Abstract
AbstractThe present study focuses on the evaluation of the potential of a Tunisian Bacillus thuringiensis (Bt) isolate named Hr1, isolated from dead and diseased pod borer, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) larvae under laboratory and field semi-controlled conditions. The bacterial strain Hr1 showed an insecticidal activity against the pest’s neonates in comparison to the spinosad-based insecticide (Tracer 240 SC®) during bioassays under laboratory conditions. A carboxymethyl cellulose-talc (CMC-talc)-based formulation of the Bt isolate was prepared to evaluate the potential of the bacterium on tomato plants infested with H. armigera under semi-controlled field conditions with and without rain simulation. The results showed the efficacy of the formulation than the spinosad-based insecticide and the treatment with unformulated bacterium. The results also showed the persistence of Bt isolate activity even after rain-wash than the treatment with unformulated bacterium.
Publisher
Springer Science and Business Media LLC
Subject
Insect Science,Plant Science,Agronomy and Crop Science,Ecology
Reference30 articles.
1. Ahmed K, Khalique F, Durrani SA, Pitafi KD (2012) Field evaluation of biopesticide for control of chickpea pod borer Helicoverpa armigera a major pest of chickpea crop. Pak J Zool 44:1555–1560
2. Avilla C, Vargas-Osuna E, González-Cabrera J, Ferré J, González-Zamora JE (2005) Toxicity of several δ-endotoxins of Bacillus thuringiensis against Helicoverpa armigera (Lepidoptera: Noctuidae) from Spain. J Invertebr Pathol 90:51–54
3. Behle RW, McGuire MR, Gillespie RL, Shasha BS (1997b) Effects of alkaline gluten on the insecticidal activity of Bacillus thuringiensis. J Econ Entomol 90:354–360
4. Behle RW, McGuire MR, Shasha BS (1997a) Effects of sunlight and simulated rain on residual activity of Bacillus thuringiensis formulations. J Econ Entomol 90:1560–1566
5. Bharti N, Sharma SK, Saini S, Verma A, Nimonkar Y, Prakash O (2017) Microbial plant probiotics: problems in application and formulation. In: Kumar V, Kumar M, Sharma S, Prasad R (eds) Probiotics and Plant Health. Springer, Singapore, pp 317–335
Cited by
10 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献