Submit Manuscript

Journal of Entomology

Year: 2011 | Volume: 8 | Issue: 5 | Page No.: 417-428
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Article Trend

Total views 91

Authors

F. E. Nwilene

A. Onasanya

A. Togola

O. Oyetunji

M. Semon

M. Tamo

E.O. Bright

S. Ofodile

Keywords

Rice and maize intercrop is a common feature of traditional upland rice cultivation in Nigeria. Stemborer larvae cause significant yield loss in rice. The study aimed at identifying stemborer resistant status of upland NERICA rice varieties and evaluating the effectiveness of maize as a trap crop to protect upland NERICA rice varieties against stemborers. The resistance status of 7 NERICA rice and 2 other rice varieties to stemborer was evaluated in 2006 and 2007 under natural infestation maize and cassava intercropping systems in the humid forest zone of Nigeria. In 2006 study, NERICA1, NERICA2 and NERICA5 together with the resistant check LAC23 were classified as stemborer resistant (SBR) and NERICA3, NERICA4, NERICA6 and NERICA7 together with susceptible check OS6 were classified as stemborer susceptible (SBS). The SBR varieties (NERICA1 and NERICA2) from the 2006 study intercropped with maize and cassava in 2007 revealed the effectiveness of maize as a trap crop and cassava as a refuge for generalist predators against stemborer damage on upland rice. Maize appeared an effective trap crop for rice stemborers because there was a marked and significant reduction in the stemborer attack on rice in the NERICA rice/maize intercrops (GrB cluster) as compared to the NERICA rice monocrops (GrA cluster) and NERICA rice/cassava intercrops (GrA cluster). Maliarpha separatella Ragonot was the predominant stemborer species on rice followed by Sesamia calamistis Hampson. It was concluded that NERICA1 and NERICA2 could be recommended to farmers in stemborer prone areas and that maize was a suitable trap crop for managing rice stemborers.
PDF Fulltext XML References Citation

Related Articles

Evaluation of Some Rice Varieties Against Rice Stem Borer (Tryporyza incertulas)
Rice Stem Borers’ Moth (Tryporyza spp. Lepidoptera: Pyralidae) Resting Behaviour in Relation to Time of Nursery Seeding and Seedlings per Hill
Agro-economic Advantages of Different Canola-based Intercropping Systems
Toxicity of Powders from Indigenous Plants Against Sitophilus zeamais Motsch on Stored Maize Grains
Assessment of Damage due to Larger Grain Borer (Prostephanus truncatus Horn) on Stored Paddy Rice (Oryza sativa L. Poaceae)

Leave a Comment

Your email address will not be published. Required fields are marked *