. The bagworm. (Thyridopteryx ephemeraeformis Haw.). Fig. 9.—Chalcis ovata: Adult. Enlarged(from Howard). IS tertiary parasite. Habrocytus thyridopterigis Ashm. (fig. 11)assumed to be a tertiary parasite on Allocota thyridopterigis Riley,when the latter is a secondary parasite of the tussock moth, but maybe secondary when breeding in the cases of the bagworm. Fig. 10.—Dibrachys boucheanus: Adult female and antenna of enlarged (from Howard). When the bagworm occurs upon deciduous trees it can be controlledby hand-picking the bags in the winter, but when it affects evergreen
. The bagworm. (Thyridopteryx ephemeraeformis Haw.). Fig. 9.—Chalcis ovata: Adult. Enlarged(from Howard). IS tertiary parasite. Habrocytus thyridopterigis Ashm. (fig. 11)assumed to be a tertiary parasite on Allocota thyridopterigis Riley,when the latter is a secondary parasite of the tussock moth, but maybe secondary when breeding in the cases of the bagworm. Fig. 10.—Dibrachys boucheanus: Adult female and antenna of enlarged (from Howard). When the bagworm occurs upon deciduous trees it can be controlledby hand-picking the bags in the winter, but when it affects evergreen trees it is practi-cally impossible toapply this remedywith profit unlessthe plants are badlydefoliated. There-fore for the treat-ment of evergreensspraying is a neces-sity. The methods ofcontrolling shade-tree pests in citiesand towns, as out-lined in FarmersBulletin No. 99,° on pages 25-29, are in part applicable to this bulletin should be read by persons who have experienced troublefrom the depredations of the bagworm. Collecting the hags. — -£ One of the most importantremedies consists in gath-ering the bags with thecontained insect by handand either burning themor preserving them to lib-erate the useful parasiteswhich have been previ-ously mentioned. Thiswork may be facilitatedby the use of a 12-footpole primer or similar appliance, and
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Keywords: ., bookauth, bookcentury1900, bookdecade1900, booksubjectinsectpests
