Residues of carbofuran applied as a systemic insecticide in irrigated wetland rice: implications for insect control

Seiber, J.N. and Heinrichs, E.A. and Aquino, G.B. (1978) Residues of carbofuran applied as a systemic insecticide in irrigated wetland rice: implications for insect control. Other. International Rice Research Institute, Manila, Philippines.

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Abstract

The behavior of carbofuran residues in rice plants treated by broadcast, soil incorporation, and root-zone application, and by seedling root-soak and rootcoat technique was studied. Placement of insecticide in gelatin capsules in the root zone gave good persistence (about 60 days) and leaf residue (as much as 45 ppm at 10 days after treatment). Among the methods tested it also controlled early season pests best and gave tie highest grain yields. Soil incorporation and root-zone placement with a liquid-band applicator was also more efficient than paddy-water broadcast in getting insecticide to the plant; soil incorporation provided slightly longer persistence (60 days) and iess insect damage. Soaking seedling roots in carbofuran solution just before transplanting (root soak) gave high residues at 10 days after treatment (DAT) but rapid dissipation and little residue by 20 DAT. Addition of gelatin or perlite sticker to the root-treatment medium (root coat) extended the persistence of 0.2 to 1.0 ppm residues by about 10 days...

Item Type:	Monograph (Other)
Author Affiliation:	Visiting Scientist, International Rice Research Institute, P.O. Box 933, Manila, Philippines
Subjects:	Plant Protection
Divisions:	Other Crops
Depositing User:	Ms K Syamalamba
Date Deposited:	01 Nov 2012 03:31
Last Modified:	01 Nov 2012 03:31
URI:	http://eprints.icrisat.ac.in/id/eprint/8617

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