. Cranberries; : the national cranberry magazine. Cranberries. 60 , 50 o 3 •V ID > < 40 30 20 10 Rochester Plympton Wareham Carver, Plymouth. 6-20 6-27 7-5 7-11 7-lE 7-25 DATE Figure 1. Average weekly adult catches per IPM bog (including check bogs) for 1983 in the Rochester, Wareham, Plyraouth-Carver, and plympton area for Chrysotcuchia topioria. Southern red mite injury, observed as leaf bronzing, was 86% lower on IPM than on Check bogs. None of the Check growers treated for southern red mite. Cranberry weevil damage, consisting of severed blossom buds, was 11% lower on Check than on I
. Cranberries; : the national cranberry magazine. Cranberries. 60 , 50 o 3 •V ID > < 40 30 20 10 Rochester Plympton Wareham Carver, Plymouth. 6-20 6-27 7-5 7-11 7-lE 7-25 DATE Figure 1. Average weekly adult catches per IPM bog (including check bogs) for 1983 in the Rochester, Wareham, Plyraouth-Carver, and plympton area for Chrysotcuchia topioria. Southern red mite injury, observed as leaf bronzing, was 86% lower on IPM than on Check bogs. None of the Check growers treated for southern red mite. Cranberry weevil damage, consisting of severed blossom buds, was 11% lower on Check than on IPM bogs. Cranberry girdler moth flight was monitored, using commer- cially available pheromone traps. Monitoring peak flight and end of flight on selected bogs enabled growers throughout the region to make more timely insecticide treatments to manage larval populations. In the Rochester , I area flight ended the week of July 25. In the Plymouth, Plympton, Carver and Wareham areas, flight ended the week of August 1 (Figure 1). A weed survey was conducted in late August on IPM and Check bogs. The weeds were divided into four categories: (1) grasses and sedges; (2) annuals; (3) perennials, and (4) woody perennials. The most serious problem in each category was rattlesnake grass, dodder, narrow-leaf goldenrod, and brambles, respectively. The weeds found more often in each category were poverty grass, marsh St. Johnswort, narrow-leaf golden- rod, and brambles, respectively (Tables 3,4,5,6). Spring herbicide recommendations were made for the IPM bogs. Insecticide use IPM bogs received 15% fewer insecticide treatments than the Check bogs. IPM bogs received 39% fewer dosage equivalents than the Check bogs (Table 7). WANTED: Manager for a cranberry bog, must have hands on experience and be able to operate the necessary equipment. Reply to Ardisonn Industries Limited at 22671 - 16th Avenue, 9, Langley, British Columbia, V3A 6H5, Telephone (604) Please note that these im
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