their use is essential for the control of a pest for which other biological, physical or breeding alternatives, cultivation practices or other effective management practices are not available;
tá a n-úsáid ríthábhachtach chun lotnaid a chomhrac, ar lotnaid í nach bhfuil roghanna malartacha bitheolaíocha, fisiceacha nó póraithe ná cleachtais saothraithe ná cleachtais éifeachtacha bainistithe eile ar fáil ina leith;