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Fruits
Volume 58 Number 16 Date 08/22/2013 CODLING MOTH - Moths are still appearing in very high numbers in pheromone traps. The peak of the second flight has occurred at most locations, but additional treatments may be necessary this month if the moths remain numerous. The average count this week was 10 per trap, with a high count of 32 per trap near Spring Valley in Pierce County. STINK BUG - Adults and nymphs have been observed on the undersides of leaves in southern Wisconsin apple orchards, signaling the potential for fruit injury prior to harvest. Growers are encouraged to monitor fruits for evidence of feeding by these insects. A single adult or nymph can injure many apples and damage may not develop until after the fruits are in storage. APPLE MAGGOT - Emergence continued for the eighth week, with most orchards registering fewer flies than in the previous week. The high count was again noted at Gays Mills in Crawford County where 16 flies were collected on a red sphere trap. According to reports from apple growers, the dry weather and timely insecticide applications have generally suppressed the flies and fruit damage this year. SPOTTED TENTIFORM LEAFMINER - Moth counts as high as 993 per trap during the last reporting period indicate that the third flight has likely peaked in some southern orchards. Central and northern locations can expect the peak to occur in 1-2 weeks. JAPANESE BEETLE - Spot treatment of individual trees should be considered for those orchards that continue to experience high numbers of beetles. This pest remains very active and common as far north as Eau Claire and Chippewa counties. -- Krista Hamilton, DATCP Entomologist 
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