Survey
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Forest tent detected in 1992. caterpillar our traps at and spring the three hemlock loopers were elevations monitored not in Ozone injury was detected late in the growing season (September) on one of the three species monitored. On September 21, 27% of the milkweed plants monitored showed light to moderate ozone damage to leaves. No symptoms of ozone damage were observed on black cherry or blackberry plants monitored. Table 1. Mansfield Survey results in 1992. TARGET PEST SURVEY on six forest pests monitored TOTAL NO. COLLECTED LOCATION TYPE on Mount Forest Tent Caterpillar Pheromone traps BR 1400' BR 2200' BR 3800' o o o Spring Hemlock Looper Pheromone traps BR 1400' BR 2200' BR 3800' o o Pheromone traps BR 1400' BR 2200' BR 3800' 325 total 521 total Pheromone traps BR 1400' BR 2200' BR 3800' 87 total 10 total 7 total Burlap banded trees BR 1400' ~ticky-~ps Soil samples (1991) BR 1400' Soil BR 1400' Fall Hemlock Looper Spruce Gypsy Budworm Moth Pear Thrips Pear Thrips Pear Thrips BR 1400' 4 egg 313 total 0.8 yer samples ( 199~ 42 masses 8.1 ~ average sampleaverage sample