Goals from Lucy Olde, Rebecca Atkins, Ezme Wells 2, Amber Guy-Kemp and Darcey Hepworth gave the scoreline a comfortable feel but with better finishing it could have been a lot more.
With both teams starting nervously, the first chance fell to Argyle on 11 minutes when they were awarded a free-kick in a central position. Katie Middleton stepped up to take it but the keeper easily saved her effort low down.
Argyle nearly fell behind in the 17th minute when a mix up at the back between Olde and keeper Michaela Phillips allowed the Shanklin striker nip in, but luckily her shot ran across the goal-line with Hepworth covering.
The deadlock was broken in the 26th minute following an Atkins corner from the right-hand side. The ball was headed back into the six yard box where Olde was waiting to beat the keeper to the ball to head in.
Argyle increased their lead three minutes before the break when good pressure on the Shanklin defence gave Brown possession in the box. She twisted and turned to get a shot in which deflected up off the defender for Atkins to race on to and head into the net.
It got better for Argyle a minute later when the influential Lane played Brown in down the right who squared it across the box to Guy-Kemp to side-foot the ball home.
Eight minutes after the restart, the Pilgrims made it 4-0 when a through ball from Middleton caused indecision at the back for Shanklin that allowed Wells to intercept the ball and round the keeper for an easy finish. Shanklin pulled a goal back almost immediately with a volley from Kim Arnold.
Neither team created many chances until the72nd minute when a lovely passing move involving Wells and Lane opened up the Shanklin defence, giving Wells an easy finish to make it 5-1.
Argyle completed the scoring in the 76th minute when Brown battled her way into the box and squared for Hepworth to smash the ball into the roof of the net via the near post.
A delighted Argyle Manager, Dave Leonard said after the match: “After a nervous opening to the the game we found our rhythm and once the first goal went in we never looked back. Today’s three points was a result of all the girls' hard work during pre-season and puts them in good stead for a tough campaign.”