ASSESSMENT OF LOSSES BY PEA LEAF MINER, PHYTOMYZA-HORTICOLA (G) ON PEA

Authors
PRASAD CS
Citation
Cs. Prasad, ASSESSMENT OF LOSSES BY PEA LEAF MINER, PHYTOMYZA-HORTICOLA (G) ON PEA, National Academy Science Letters, 16(3), 1993, pp. 119-121
Citations number
NO
Categorie Soggetti
Multidisciplinary Sciences
Journal title
National Academy Science Letters → ACNP
ISSN journal
0250541X
Volume
16
Issue
3
Year of publication
1993
Pages
119 - 121
Database
ISI
SICI code
0250-541X(1993)16:3<119:AOLBPL>2.0.ZU;2-0
Abstract
The effect of different levels of leaf infestation by leaf miner Phyto myza horticola (G.) was studied. The plant characters studied were hig hest in the insect free crop. The grain yield reduced beyond the level of 40 per cent leaf infestation. The cost: benefit ratio was highest (1:1.36) at this level of infestation. Two sprays of dimethoate were r equired for keeping the level of leaf infestation below the economic t hreshold value.