000			00482nam a2200157Ia 4500
008			220216s9999 xx 000 0 und d
100			_aPeries O S
245		0	_aCritical study of the use of weather data for the economic control of Hevea diseases
260			_bRubber Research Institute of Sri Lanka Quarterly Journal _c1973
300			_a208-217
650			_aDisease control
650			_aEconomic control
650			_aHevea disease
650			_aWeather data
942			_cJS
999			_c56531 _d56531