Bioefficacy of cow urine decoction (CUDs) of different plants on population growth of Lipaphis erysimi (Kalt.) on B. juncea under field conditions

The per cent population growth of L. erysimi after two sprays of CUDs was lowest in neem oil 0.005% (−56.2) followed by A. indica (−20.9), neem oil 0.003% (−18.6), A. squamosa (3.1), C. citriodora (8.9), P. hysterophorus (10.7), A. cepa (15.4), A. sativum (24.4), C. papaya (27.5), C. gigantea (66.5) and highest in untreated control (76.3) in timely sown crop. While in late sown crop it was lowest in Neem oil 0.005% (−15.1) followed by neem oil 0.003% (−14.5), A. cepa (−10), A. indica (−7.8), A. sativum (−6.7), A. squamosa (−1.9), C. gigantea (6.2), C. papaya (7.7), C. citriodora (7.7), P. hysterophorus (7.8) and highest in untreated control (24.7). On the basis of percent population growth, A. indica was the best among all CUDs used.