Assertion: aphid's type | /r/HasProperty | difficult to avoid
Facets:
Source sentences:
text: This type of virus transmission by aphids is the most difficult to avoid because once the aphids carrying virus have attacked the host plant, infection occurs immediately, with consequent loss of production.
text: This type of virus transmission by aphids is the most difficult to avoid because once the aphids carrying virus have attacked the host plant, infection occurs immediately, with consequent loss of production.