TY - BOOK AU - DR.G.MADHAVAN NAIR TI - Chemical andbio pesticides for crop protection-a hand book for technical officers U1 - 632.9 PY - 2015/// CY - Thiruvananthapuram, Thiruvananthapuram, Thiruvananthapuram PB - Department of agriculture KW - Pesticides KW - fungicides KW - herbicides ER -