Comparison of dislodgable and total residues of three pyrethroids applied to cotton in Arizona

Cotton plants were sprayed with pyrethroid insecticides (flucythrinate, s-fenvalerate, and cyhalothrin) which are used to control tobaco budworms. Samples of leaves were taken from immediately after to 21 d after insecticide application. The samples were tested for dislodgable and total residues. On...

Full description

Saved in:
Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 1990-02, Vol.44 (2), p.240-245
Main Authors: Estesen, B.J. (University of Arizona, Tucson, AZ), Buck, N.A
Format: Article
Language:English
Subjects:
ARIZONA
GOSSYPIUM
INSECTICIDAS
INSECTICIDE
INSECTICIDES
Insecticides - analysis
Nitriles
PERSISTANCE DES PESTICIDES
PERSISTENCIA DE LOS PLAGUICIDAS
PESTICIDE PERSISTENCE
Pesticide Residues - analysis
Phenylacetates - analysis
PIRETRINAS
PYRETHRINE
PYRETHRINS
Pyrethrins - analysis
RESIDU
RESIDUES
RESIDUOS
tucson, arizona
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Cotton plants were sprayed with pyrethroid insecticides (flucythrinate, s-fenvalerate, and cyhalothrin) which are used to control tobaco budworms. Samples of leaves were taken from immediately after to 21 d after insecticide application. The samples were tested for dislodgable and total residues. One day after application 85-100% of dislodgable residues remained. By the third day they had dropped to 25-36% and by the fifth day to 20-24% of the initial deposit. Total residues remaining were greater than dislodgable residues. On the third day they were 37-46% and on the fifth day 34-41% of the initial deposit. An understanding of dislodgable residues and time since application may provide the basis for predicting total residue, but further study is needed to understand differences betwen individual insecticides.
ISSN:0007-4861
1432-0800
DOI:10.1007/BF01700142