TY - BOOK AU - MANN, Vijjay Singh TI - Comparative bio-efficacy of various spray nozzles in pest control mounted on a manually operated sprayer U1 - T 632.94 M30C PY - 1974/// CY - Ludhiana PB - P.A.U KW - SPRAYING EQUIPMENT KW - BIOEFFICACY KW - COTTON KW - ENTOMOLOGY KW - PEST CONTROL KW - SPRAY NOZZLES KW - SPRAYER N2 - The dosages of the insecticides and requirements of water as carrier were appreciably influenced by the nature of insect and insecticide. With contact insecticide. ie malathion the recommended amounts of water (325-375 I/ha) gave better performance than r ER -