Effect of P.E. film-mulching on the damage to tobacco seedlings by the 'dark grey cutworm', Agrotis tokionis Butler
1986
Kim, S.S. (Korea Ginseng and Tobacco Research Inst., Suwon (Korea R.)) | Boo, K.S. | Hyun, J.S. (Seoul National Univ., Suwon (Korea R.))
This study was carried out to see what makes the 'dark grey cutworm', Agrotis tokionis Butler, inflict less damage in P.E. film-mulched tobacco fields than in nonmulched ones. In field plot experiment, the damage ratio of tabacco seedlings in mulched plots (m) was reduced by 63% compared with that in nonmulched ones (n). The altered environments did not affect the cutworm in mortality, which was confirmed by recovery ratio, location of larvae in soil, and developmental age
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