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Fruits
Volume 58 Number 5 Date 05/30/2013 CODLING MOTH - Low to moderate numbers of moths were registered in pheromone traps for the second week. Reports of activity were received from 14 of 25 reporting apple orchards, with a high count of 16 moths per trap near New Berlin in Waukesha County. The spring biofix was set from May 19-29 at several sites in southern and central Wisconsin. REDBANDED LEAFROLLER - Counts are declining at most locations as the first flight comes to an end. The average count was 13 moths per trap from May 23-29, which compares to 33 last week and 17 per trap the week before. Egg hatch is under way and larvae are appearing in southern orchards. SPOTTED TENTIFORM LEAFMINER - The comparatively low numbers of moths captured this week signals most apple orchards are in between the first and second flights. Populations in the southern two-thirds of the state consist mostly of the early-stage sapfeeder larvae. OBLIQUEBANDED LEAFROLLER - The first flight of moths is expected to begin by early June. Apple growers who have experienced late-season OBLR problems in recent years should consider setting additional traps now to identify problem areas and determine where to concentrate sampling efforts. PLUM CURCULIO - Reports from Ozaukee and Racine counties indicate the first feeding and oviposition scars are appearing on apples and plums. Orchardists are advised to continue examining early-blooming varieties and perimeter trees for signs of injury. An insecticide application directed against the adults at petal fall is usually an effective form of control. -- Krista Hamilton, DATCP Entomologist |