Stink Bug, Codling Moth and Oriental Fruit Moth Updates from Drs. Greg Krawczyk and Larry Hull
Posted: September 19, 2011
The insect pest control updates presented are for the south-central part of Pennsylvania based on observations in Adams County, PA.
The codling moth (CM) third generation moths are gradually ceasing their activity in most Pennsylvania orchards. Due to discrepancies observed between the predictive CM egg hatch model and the actual situation in orchards, we strongly recommend use of the actual observations from an orchard as the main factor in deciding if and/or when control measures are necessary. Applications of various products against brown marmorated stink bug should also provide adequate control of remaining codling moth larvae.
The Oriental fruit moth larvae continues to injure apple fruit. Some loads of fruit were already rejected by local processors for the presence of live larvae in the fruit. Similarly as with the CM, please use the actual local orchard observations (e.g., pheromone trap data and/or fruit injuries from earlier generation) as the main factor when deciding about the necessity for OFM control.
The 2011 season biofix for the Oriental fruit moth was established on April 19, codling moth on May 7, tufted apple bud moth on May 11, spotted tentiform leafminer on April 06 and red banded leafroller on April 5; for obliquebanded leafroller the biofix was established on May 29.