Assertion: phosphine | /r/HasProperty | effective
Facets:
value: very
type: DEGREE
Source sentences:
text: Methyl bromide and phosphine are effective in the fumigation of modern concrete, stone or brick mills that can be made sufficiently gas tight to retain the fumigant.
text: Phosphine is still an effective fumigant, but it must be used in a sealed, gas-tight storage or silo.
text: Phosphine is very effective in the protection of the cereal caryopses from insects and other infesting agents but is also characterised by a non-negligible toxicity.