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Toxicity of plumbagin and juglone to the eggs of the cotton stainer, Dysdercus koenigii
Author(s) -
Rao R. V. Satyanarayana,
Gujar G. T.
Publication year - 1995
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1111/j.1570-7458.1995.tb02000.x
Subject(s) - plumbagin , juglone , biology , toxicity , toxicology , botany , organic chemistry , chemistry
Toxicity of two plumbaginoids viz., plumbagin and juglone to the eggs of the cotton stainer, Dysdercus koenigii was studied by a residual film technique. Of these two, plumbagin showed the higher toxicity against different‐age eggs with LC 50 ranging from 0.0044 to 0.0066%. Eggs showed low susceptibility in the middle of embryogenesis. The toxicity of plumbaginoids, especially plumbagin, is discussed in relation to mode of action and prospects of its use as an ovicide in control of the insect.