EFFICACY OF CERTAIN DISINFECTANTS FOR CONTROL OF DISEASES IN TASAR SILKWORM, ANTHEREA MYLITTA D.
ALOK SAHAY *
CENTRAL TASAR RESEARCH & TRAINING INSTITUTE, PISKA NAGRI, RANCHI-835 303, INDIA.
G.P. SINGH *
CENTRAL TASAR RESEARCH & TRAINING INSTITUTE, PISKA NAGRI, RANCHI-835 303, INDIA
D.K. ROY *
CENTRAL TASAR RESEARCH & TRAINING INSTITUTE, PISKA NAGRI, RANCHI-835 303, INDIA
B.R.R.P. SINHA *
CENTRAL TASAR RESEARCH & TRAINING INSTITUTE, PISKA NAGRI, RANCHI-835 303, INDIA.
*Author to whom correspondence should be addressed.
Abstract
Five disinfectants viz. paraformaldehyde, asiphore (alkyl phenoxy poly-glycoleher iodine compound), slaked lime (Calcium hydroxide), benzoic acid and bleaching powder (CaOCl2) were tested on tasar silkworm, Antherea my litta D. for assessing their comparative efficacy in controlling various diseases. The disinfectants were applied topically on the body of silkworms once each during I to IV instars and twice during V instar with a gap of six days between the two applications. All the disinfectants tested were found effective in suppressing diseases significantly (P<0.05). However, the treatment with Asiphore (1%) was found most effective in controlling not only diseases of tasar silkworm but also bringing qualitative improvement in cocoon.