Granulosis Disease in the Buckeye Caterpillar, Junonia coenia Hübner

Histopathology of Granulosis Viruses in Insects

“…Also, different tissues have been reported to be susceptible in different insect species. All investigators agree, however, that the fat tissue is involved (8,10,11,12,14,15,16). Some authors (10,11,12,14,16) report the infection of hypodermis as well as fat, some (14) report the infection of fat, hypodermis, and tracheal matrix, and one author (1) has found infected blood cells.…”

“…All investigators agree, however, that the fat tissue is involved (8,10,11,12,14,15,16). Some authors (10,11,12,14,16) report the infection of hypodermis as well as fat, some (14) report the infection of fat, hypodermis, and tracheal matrix, and one author (1) has found infected blood cells. Thus granulosis viruses have been reported as developing in the same tissues as the polyhedrosis viruses, although not all the different tissues have been found infected in any one insect species.…”

“…Bergold (1) demoilstrated in dark-field light microscope pictures "blasenformige Gebilde" filled with granules in the cytoplasm of blood cells of Choristoneura mz~rinana Hbn. Steinhaus and Thompsoil (14) in describing a granulosis of Junonia coenia Hbn. stated: "The granules possibly originate within the nucleus and sooner or later accumulate in the cytoplasm."…”

THE POLYHEDRAL DISEASE OF THE SPRUCE BUDWORM,CHORISTONEURA FUMIFERANA(CLEM.) (LEPIDOPTERA: TORTRICIDAE)

“…In the meantime, this polyhedral disease was also found in dead larvae of the spruce budworm from various localities in Ontario. In coinparison with the polyhedral disease, there is little known about the capsule disease of insects (5,17,18). I t was decided, therefore, to investigate first the polyhedral disease of Choristoneura funziferamz.…”

A brief journey with insect viruses with emphasis on baculoviruses

“…While Steinhaus' interests were quite varied, his publications were mostly on insect viruses. He investigated the "wilt disease" of the alfalfa caterpillar and demonstrated larval melting after infection with an NPV (Steinhaus, 1949b), granuloviruses (Steinhaus, 1947;Steinhaus and Thompson, 1949;, and classiWcation of insect viruses (1949). The developments in this Weld were so rapid that in Steinhaus' mind, it warranted a new journal specializing in insect pathology.…”