Control of the African Armyworm Spodoptera exempta Walker (Lepidoptera: Noctuidae) in Kenyan Fields with Highly Effective Strains of Bacillus thuringiensis Berliner

M. Broza; M. Brownbridge; M. Hamal; B. Sneh

doi:10.1080/09583159109355192

Control of the African Armyworm Spodoptera exempta Walker (Lepidoptera: Noctuidae) in Kenyan Fields with Highly Effective Strains of Bacillus thuringiensis Berliner

M. Broza, M. Brownbridge, M. Hamal, B. Sneh

Faculty of Life Sciences

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Good control ofsecond and third instar larvae ofSpodoptera exempta was obtained in cereal fields using spray application ofpowder preparations ofdifferent Bacillus thuringiensis (Bt) strains: Bt24 (var. entomocidus), IH-A (var. aizawai) andK26-21 (new isolate). These Bt preparations also protected cereal cropsfrom damage caused byfourth to sixth instar larvae, but lower rates of larval mortality were obtained (50% 80%). Spray applications of Bt preparations combined with a ‘sweeping out’ operation using a Californian sweep net in grass fields surrounding susceptible crops, were shown to be effective in preventing massive migration of large larvae to the crops, especially in smallfarms. copyright

Original language	English
Pages (from-to)	127-135
Number of pages	9
Journal	Biocontrol Science and Technology
Volume	1
Issue number	2
DOIs	https://doi.org/10.1080/09583159109355192
State	Published - 1 Jan 1991

Funding

Funders	Funder number
US-Israel

Keywords

African armyworm
Bacillus thuringiensis
Spodoptera exempta
biological control

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1080/09583159109355192

Cite this

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title = "Control of the African Armyworm Spodoptera exempta Walker (Lepidoptera: Noctuidae) in Kenyan Fields with Highly Effective Strains of Bacillus thuringiensis Berliner",

abstract = "Good control ofsecond and third instar larvae ofSpodoptera exempta was obtained in cereal fields using spray application ofpowder preparations ofdifferent Bacillus thuringiensis (Bt) strains: Bt24 (var. entomocidus), IH-A (var. aizawai) andK26-21 (new isolate). These Bt preparations also protected cereal cropsfrom damage caused byfourth to sixth instar larvae, but lower rates of larval mortality were obtained (50\% 80\%). Spray applications of Bt preparations combined with a {\textquoteleft}sweeping out{\textquoteright} operation using a Californian sweep net in grass fields surrounding susceptible crops, were shown to be effective in preventing massive migration of large larvae to the crops, especially in smallfarms. copyright",

keywords = "African armyworm, Bacillus thuringiensis, Spodoptera exempta, biological control",

author = "M. Broza and M. Brownbridge and M. Hamal and B. Sneh",

note = "Funding Information: ACKNOWLEDGEMENTS The research was supported by Grant DPE-5544-65506042-00 from the US-ISRAEL CDR AID programme. We would like to thank Ariel Venetzian for his work in the field",

year = "1991",

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doi = "10.1080/09583159109355192",

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AU - Broza, M.

AU - Brownbridge, M.

AU - Hamal, M.

AU - Sneh, B.

N1 - Funding Information: ACKNOWLEDGEMENTS The research was supported by Grant DPE-5544-65506042-00 from the US-ISRAEL CDR AID programme. We would like to thank Ariel Venetzian for his work in the field

PY - 1991/1/1

Y1 - 1991/1/1

N2 - Good control ofsecond and third instar larvae ofSpodoptera exempta was obtained in cereal fields using spray application ofpowder preparations ofdifferent Bacillus thuringiensis (Bt) strains: Bt24 (var. entomocidus), IH-A (var. aizawai) andK26-21 (new isolate). These Bt preparations also protected cereal cropsfrom damage caused byfourth to sixth instar larvae, but lower rates of larval mortality were obtained (50% 80%). Spray applications of Bt preparations combined with a ‘sweeping out’ operation using a Californian sweep net in grass fields surrounding susceptible crops, were shown to be effective in preventing massive migration of large larvae to the crops, especially in smallfarms. copyright

AB - Good control ofsecond and third instar larvae ofSpodoptera exempta was obtained in cereal fields using spray application ofpowder preparations ofdifferent Bacillus thuringiensis (Bt) strains: Bt24 (var. entomocidus), IH-A (var. aizawai) andK26-21 (new isolate). These Bt preparations also protected cereal cropsfrom damage caused byfourth to sixth instar larvae, but lower rates of larval mortality were obtained (50% 80%). Spray applications of Bt preparations combined with a ‘sweeping out’ operation using a Californian sweep net in grass fields surrounding susceptible crops, were shown to be effective in preventing massive migration of large larvae to the crops, especially in smallfarms. copyright

KW - African armyworm

KW - Bacillus thuringiensis

KW - Spodoptera exempta

KW - biological control

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DO - 10.1080/09583159109355192

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JO - Biocontrol Science and Technology

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ER -

Control of the African Armyworm Spodoptera exempta Walker (Lepidoptera: Noctuidae) in Kenyan Fields with Highly Effective Strains of Bacillus thuringiensis Berliner

Abstract

Funding

Keywords

UN SDGs

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