SYNERGISTIC EFFECT OF HENNA POWDER IN COMBINATION WITH BACILLUS THURINGIENSIS KURSTAKI ON 3RD INSTAR LARVAE OF SPODOPTERA EXIGUA (HUBNER)

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NAMVAR P.; SAFAR ALIZADEH M.H.; POURMIRZA A.A.

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Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2002 | Volume:12 | Issue:3 Page(s): 23-28

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Title

SYNERGISTIC EFFECT OF HENNA POWDER IN COMBINATION WITH BACILLUS THURINGIENSIS KURSTAKI ON 3RD INSTAR LARVAE OF SPODOPTERA EXIGUA (HUBNER)

Author(s)

NAMVAR P. | SAFAR ALIZADEH M.H. | POURMIRZA A.A. | Issue Writer Certificate

Keywords

BACILLUS THURINGIENSISQ4

HENNAQ4

SPODOPTERA EXIGUAQ4

SYNERGISMQ3

Abstract

Beet army worm, SPODOPTERA EXIGUA, is a severe polyphagous pest and has developed relative resistance to BACILLUS THURINGIENSIS. Therefore, to increase the efficacy of B.thuringiensis we used HENNA powder which is a cheap and available plant material. In this research three different concentrations of HENNA powder, 3000, 4000 and 5000 pp m, were added to the lowest lethal concentration of B.thuringiensis (1000 ppm) against the 3rd larval instars. The B.thuringiensis concentration was estimated carrying out suplementary bioassays. The experiment was conducted in a randomized block design with 6 treaments and 4 replicates. Results revealed that, although the larval mortality was delayed in mixtures of B.thuringiensis and HENNA powder in comparison with B.thuringiensis alone, but it enhanced the B.thuringiensis efficacy.

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APA: Copy

NAMVAR, P., SAFAR ALIZADEH, M.H., & POURMIRZA, A.A.. (2002). SYNERGISTIC EFFECT OF HENNA POWDER IN COMBINATION WITH BACILLUS THURINGIENSIS KURSTAKI ON 3RD INSTAR LARVAE OF SPODOPTERA EXIGUA (HUBNER). JOURNAL OF AGRICULTURAL KNOWLEDGE, 12(3), 23-28. SID. https://sid.ir/paper/28699/en

Vancouver: Copy

NAMVAR P., SAFAR ALIZADEH M.H., POURMIRZA A.A.. SYNERGISTIC EFFECT OF HENNA POWDER IN COMBINATION WITH BACILLUS THURINGIENSIS KURSTAKI ON 3RD INSTAR LARVAE OF SPODOPTERA EXIGUA (HUBNER). JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2002;12(3):23-28. Available from: https://sid.ir/paper/28699/en

IEEE: Copy

P. NAMVAR, M.H. SAFAR ALIZADEH, and A.A. POURMIRZA, “SYNERGISTIC EFFECT OF HENNA POWDER IN COMBINATION WITH BACILLUS THURINGIENSIS KURSTAKI ON 3RD INSTAR LARVAE OF SPODOPTERA EXIGUA (HUBNER),” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 12, no. 3, pp. 23–28, 2002, [Online]. Available: https://sid.ir/paper/28699/en

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