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  1. CORESTA Congress, Shanghai, 2008, APPOST 02

    Evaluation of susceptibility of different larval instars of Helicoverpa armigera (Hub) to Bacillus thuringiensis in Mazandaran tobacco fields - Iran

    ASSEMI H.; REZAPANAH M.; SAJJADI A.; GOODARZIAN N.; CALANTARI MUSHAI M.
    Tobacco Research Institute, Tirtash, Behshahr, Iran.
    There are many microorganisms that are used for control of plant pests in the world. Among them, Bacillus thuringiensis has a wide range of activity and is more effective. The most important crop hosts of which H. armigera is major pest is tobacco. The ...