Harley, 21, died at the scene in Witcombe, last Thursday, Gloucestershire Police confirmed.
The force said his parents have been informed and are being supported by specialist officers.
A Pearce family tribute said: ‘Our family is truly shocked and utterly heartbroken at the loss of our cherished son and devoted brother, Harley. A soul who left an unforgettable imprint on all who knew him.
‘He was a golden boy with an infectious smile, and this shocking tragedy will leave a huge hole in the hearts of those who were fortunate enough to have known him.
‘With a quiet, understated strength and deep kindness, we are so proud of the young man he had become, exhibiting a wonderful work ethic and entrepreneurial spirit in the farming industry. He will always be our shining star.
‘Rest in Peace, our beautiful son and brother. You will never ever be forgotten