. Cooperative economic insect report. Insect pests Control United States Periodicals. 1017 INSECTS NOT KNOWN TO OCCUR IN THE UNITED STATES PINE MOTH (Panolis flamroea (Denis and Schiffermuller)) Economic Importance: Pine moth is one of the most destructive insects of coniferous forests in Europe. Two sucessive attacks will kill a pine forest. In 1924, about 425,000 acres of forest were defoliated in northwestern Poland and northeastern Germany. This necessitated the cutting of over 400 million board feet of pine and fir in that area. Severe outbreaks have been reported in other years in German
. Cooperative economic insect report. Insect pests Control United States Periodicals. 1017 INSECTS NOT KNOWN TO OCCUR IN THE UNITED STATES PINE MOTH (Panolis flamroea (Denis and Schiffermuller)) Economic Importance: Pine moth is one of the most destructive insects of coniferous forests in Europe. Two sucessive attacks will kill a pine forest. In 1924, about 425,000 acres of forest were defoliated in northwestern Poland and northeastern Germany. This necessitated the cutting of over 400 million board feet of pine and fir in that area. Severe outbreaks have been reported in other years in Germany and in the Kharkov area of USSR, Czechoslovakia and Finland. Distribution: British Isles, most of continental Europe and Japan. Hosts: Pine preferred. Also attacks silver fir, Douglas-fir, spruce, juniper, European larch and some broad-leaved General Distribution of Panolis flammea Life History and Habits: The moth is not commonly observed, being a night- flying species. Emergence occurs in March or April. The eggs are deposited in batches of 4 to 8 on pine needles of the preceeding year. Trees with dense foliage are preferred. The larval period coincides with the opening of the buds and the young growth is quickly devoured in an infestation. At a slight disturbance the larva drops to the ground by means of a silken thread. Feeding continues up to the end of July at which time the full-grown larva drops to the ground where it pupates. The winter is passed in this stage. In heavy infestations the old foliage is consumed along with the new, thereby leading to tree mortality. Description: Adult spread 30-40 mm. Head and thorax rufous mixed with white, tarsi ringed with white, abdomen generally brown. Forewing rufous suffused with gray and white (see illustration), veins white and brown. Hindwing fuscous brown, cilia white at tips; underside whitish suffused with rufous, a discoidal spot and curved postmedial line with a slight dark streak at the veins. Color of larva var
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Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, bookleafnumber17
