eprintid: 735
rev_number: 10
eprint_status: archive
userid: 14
dir: disk0/00/00/07/35
datestamp: 2011-10-07 06:10:46
lastmod: 2011-10-07 06:10:46
status_changed: 2011-10-07 06:10:46
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@cgiar.org
item_issues_count: 0
creators_name: Ranga Rao, G V
creators_name: Visalakshmi, V
creators_name: Suganthy, M
creators_name: Reddy, P V
creators_name: Reddy, Y V R
creators_name: Rao, V R
icrisatcreators_name: Ranga Rao, G V
icrisatcreators_name: Rao, V R
affiliation: ICRISAT(Patancheru)
affiliation: Department of Entomology
affiliation: Tamil Nadu Agricultural University
affiliation: IIIT(Cotton Pest Management)
country: India
title: Relative toxicity of neem to natural enemies associated with the chickpea ecosystem: a case study
ispublished: pub
subjects: s1.1
full_text_status: public
abstract: Neem products are often perceived as harmless to natural enemies, pollinators and other non-target organisms. For this reason, several integrated pest management (IPM) programmes have adopted neem as one of the prime components. This study revealed toxic effects of neem on soil-inhabiting and aerial natural enemies in chickpea to an extent of 41 and 29% population reduction, respectively, compared with 63 and 51% when using a conventional insecticide (endosulfan). Neem also affected the parasitization of Helicoverpa armigera (Hu¨ bner) larvae by Campoletis chlorideae Uchida up to 20%. The natural enemy population started building up from the vegetative phase and reached their peak during the reproductive phase, and there was a gradual decline from pod formation to pre-harvest phases of the crop. Adapting the currently used IPM system in chickpea using neem during the vegetative phase, followed by an application of Helicoverpa nuclear polyhedrosis virus (HNPV) at flowering and need-based application(s) of chitin inhibitors like novaluron or flufenoxuron instead of endosulfan during pod formation would strongly augment natural enemy populations. This paper discusses the relative toxicity of neem and other IPM components on soil-inhabiting and aerial natural enemies in the chickpea ecosystem.
date: 2008
publication: International Journal of Tropical Insect Science
volume: 27
number: 3-4
pagerange: 229-235
refereed: TRUE
related_url_url: http://scholar.google.co.in/scholar?as_q=Relative+toxicity+of+neem+to+natural+enemies+associated+with+the+chickpea+ecosystem%3A+a+case+study&num=10&btnG=Search+Scholar&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&as_sdt
related_url_type: author
citation:   Ranga Rao, G V and Visalakshmi, V and Suganthy, M and Reddy, P V and Reddy, Y V R and Rao, V R  (2008) Relative toxicity of neem to natural enemies associated with the chickpea ecosystem: a case study.  International Journal of Tropical Insect Science, 27 (3-4).  pp. 229-235.      
document_url: http://oar.icrisat.org/735/1/InterJouTro_InsectSci_27%283-4%29_229-235_2008.pdf