Economic Threshold Level and Economic Injury Level of Spidermites
1.ETL of mite complex damage for H-2304 and M-4-10 % leafinfestation.
2.EIL for H-1687- 25 % of the leaf infestation
3.H-1687 can tolerate mite damage better than H-2304 & M-4 at lower level of infestation.
4.At higher level of infestation yield loss is more in H-2304 & H-1687 than in M-4.
5.Plant protection measures to be adopted at ETL