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EFFECT OF DIFFERENT INSECTICIDAL TREATMENTS ON APHID (LIPAPHIS ERYSIMI KALTENBACH) INFESTATION, YIELD AND YIELD CONTRIBUTING TRAITS IN BRASSICA RAPA VAR SARSON CROP IN KULLU VALLEY OF HIMACHAL PRADESH, iNDIA

S.D. Sharma* and Swaroop Kumar1
Hill Agricultural Research and Extension Center CSKHPKV, Bajaura.Distt. Kullu-175 125, India
sukhdevsharma40@gmail.com

Page Range:
229 - 232
Article ID:
D-4077
Online Published:
Abstract
Different chemical treatments were applied at pre flowering stage succeeded by post bloom sprays on aphid, Lipaphis erysimi Kaltenbach infestation and yield and yield contributing traits of Brassica rapa (B.campestris) var sarson. The treatment consisting of the pre flowering soil treatment of carbofuran succeeded by post bloom spray of cypermethrin (T2) provided the best control of L. erysimi as significantly least dried siliquae/plant (3.03 and 2.09) were recorded during the two years observations.  In case of unprotected crop, significantly higher number of dried siliqua/plant (16.70 and 16.73) was recorded during 2009-10 and 2010-11. The number of primary and secondary branches/plant, seeds/siliqua, thousand seed weight and seed yield were also significantly higher under this treatment.
Keywords
Lipaphis erysimi, Insecticidal treatments, Yield contributing traits.
References
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