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Pheromone Disruption of Oriental Fruit Moth in New York Peaches A. M. Agnello, W. H. Reissig, and D. I. Breth

Summary: Pheromone Disruption of Oriental Fruit Moth in New York Peaches
A. M. Agnello, W. H. Reissig, and D. I. Breth
Dept. of Entomology, NYSAES, Geneva, NY 14456 and
Lake Ontario Fruit Program, Cornell Cooperative Extension, Albion, NY 14411
Final Report 2000
During the past several years, peach growers in Western N.Y. have experienced increased
difficulties in controlling oriental fruit moth (OFM), Grapholita molesta (Busck) in their stone
fruit plantings, particularly those in the most western regions along Lake Ontario, in Niagara and
Orleans Counties. After unacceptable fruit damage began to show up during the 1997 season,
increased efforts were made in population monitoring and spray application timing; however,
these still did not produce adequate results in 1998, and by this time the problems had begun to
show up in nearby apple plantings as well. Although this insect previously has been controlled
easily by common broad-spectrum insecticides such as organophosphates and carbamates, some
initial screening of adult males from this region showed at least a tolerance, if not actual
resistance, to these materials in approximately one-third of the specimens tested from two
This pest attacks the growing shoots in its first generation, and feeds primarily within the
fruit thereafter. The larva enters the fruit, usually at the stem end, and proceeds to feed in the
area around the pit. External evidence of this infestation may go unnoticed unless the fruit is cut.
This concealed aspect of its feeding activity naturally makes chemical control of the insect very


Source: Agnello, Arthur M. - Department of Entomology, Cornell University


Collections: Biology and Medicine