Abstract
The impact of the alfalfa blotch leafminer, Agromyza frontella (Rondani) on alfalfa (Medicago sativa L. ’Saranac’) was evaluated during three growth cycles in 1982 and 1983 when experimental plots were treated with either carbofuran, acephate, or water. No significant differences in forage accumulation, canopy apparent or net photosynthesis were detected between treatments and controls, even though highly significant differences in A. frontella densities were evident. The results are discussed with respect to the questionable pest status of this insect in the alfalfa ecosystem.Key words: Alfalfa, photosynthesis, growth analysis, alfalfa blotch leafminer
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