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THE IMPORTANCE OF ECONOMIC LEVELS IN A PEST MANAGEMENT
Materials and Methods
10 other sections not shown
80 leaf sample 80 lower leaves active ingredient aldicarb per acre aphid control aphid infestation aphids on potatoes aphids per 80 aphids/sample/cwt application August carbaryl Collection date Colorado potato beetle Cornell University Vegetable Correlation coefficient cost of control critical period crop cwt per acre determine damage levels determine the critical economic levels economic-injury level Entomol Epitrix cucumeris Expressed as cwt Expressed as pounds Folsom Freeville gain threshold values green peach aphid grower growing season ingredient per acre insecticide July leaf roll leafhopper leaves per treatment levels for aphids Maine Agr Malathion maneb market value Myzus persicae MYZUS PERSICAE SULZER number of aphids Parathion Pedigo percent period of aphid period of infestation pest management program pest population phloem potatoes in upstate pounds of active pounds of aldicarb reduce yields REPLICATE 3 REPLICATE sample dates University Vegetable Research untreated plots upstate New York Vegetable Research Farm yield reduction yields of potatoes Zweigelt