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KMID : 1041219820240010025
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Journal of Sericultural and Entomological Science
1982 Volume.24 No. 1 p.25 ~ p.27
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Application of Paraformaldehyde (Neo-PPS) Fumigation to the Disinfection of the Silkworm Larvae, Bombyx mori L., for the Control of Silkworm Diseases (II). Chemical Damage of Neo-PPS to the Silkworm Larvae
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Kim Keun-Young
Lee Jae-Chang
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Abstract
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The use of fumigation of Neo-PPS was tested for the larval disinfection and at the same time for easy handling and effective chemicals for larval disinfection. The results obtained are as follows: 1. There was no decrease of cocoon yield in spring season due to chemical damage by application of Neo-PPS fumigation to the disinfection of the silkworm except 2,4 and 6 hours’ treatment everyday and 6 hours’/ twice/instar treatment as compared with the control. 2. There was no significance in pupal percent between treatments and control in spring season except 6 hours’ treatment everyday. 3. No chemical damage seemed to give rise to percentage of cocoon shell in all treatments.
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