Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Journal of Entomology
  Year: 2008 | Volume: 5 | Issue: 3 | Page No.: 148-155
DOI: 10.3923/je.2008.148.155
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Management of Thrips (Thysanoptera: Thripidae) on French Beans (Fabaceae) in Kenya: Economics of Insecticide Applications

J.H. Nderitu, M.J. Kasina , G.N. Nyamasyo , C.N. Waturu and J. Aura

Abstract:
This study was conducted to measure economic benefit of using different spray schedules to control thrips on French beans. It was done using different spray regime scenarios of two insecticides: Lambda cyhalothrin (Karate 1.75% EC) and Methiocarb (Mesurol 500 SC). It is shown that increasing the number of sprays results to lower thrips infestations, explaining why local farmers practice calendar spraying. However, this lowers the net returns obtained from French bean sales. In contrast, application of one to two sprays maintains thrips below economic damage and provides the highest net returns. It is suggested that farmers should only use the effective insecticide after noting a density of three thrips per flower. This is possible if farmers embrace monitoring of thrips buildup on French beans.
PDF Fulltext XML References Citation Report Citation
How to cite this article:

J.H. Nderitu, M.J. Kasina , G.N. Nyamasyo , C.N. Waturu and J. Aura , 2008. Management of Thrips (Thysanoptera: Thripidae) on French Beans (Fabaceae) in Kenya: Economics of Insecticide Applications. Journal of Entomology, 5: 148-155.

DOI: 10.3923/je.2008.148.155

URL: https://scialert.net/abstract/?doi=je.2008.148.155

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 

Curve Bottom