Publications for:

pest = Phytoplasma trifolii
crop = Willow (Salix)

found 2 publications:

2018
Association of ‘Candidatus Phytoplasma trifolii’ related strain with white willow proliferation in Iran
Australasian Plant Disease Notes (2018) 13 (17)
publishers website - pestinfo wiki

"Candidatus Phytoplasma trifolii" related strain affecting Salix babylonica in Iran
Australasian Plant Disease Notes (2018) 13 (40)
publishers website - pestinfo wiki