Kilnsey Show and Sports which is held in the shadow of Kilnsey Crag, will be officially opened by the Duke and Duchess of Devonshire on Tuesday.

Like many shows set to take place this summer, the organisers of the 110th show have been encouraged by the news that the restriction zones have been moved in recent weeks to cover all of Yorkshire and Lancashire.

The show, the biggest annual one-day agricultural show in Britain, is organised by Upper Wharfedale Agricultural Society, whose members claim this year's event promises to be one of the best on record, with a great deal of interest from regional agricultural communities and the public, particularly younger visitors.

Robert Lambert, farmer and chairman of the society, welcomed news that the zone would widen this week to cover all parts of North Yorkshire – including Upper Wharfedale – and neighbouring Lancashire.

He said: "Kilnsey remains a traditional livestock-led agricultural show and was hard hit last year when foot and mouth resulted in the cancellation of sheep and cattle classes.

"We have been on a knife-edge regarding the Bluetongue situation, but the latest extension is the best news possible and will now allow us to accept entries in the livestock classes from across Craven, North and West Yorkshire, Lancashire – and beyond."

Despite the lack of livestock entrants last year, attendance remained high with visitors remaining loyal to the picturesque event.

This year 78 trophies and £16,000 in prize money will be available, including £6,500 in the livestock classes – described by organisers as "the lifeblood of the show".

Entry to Kilnsey Show & Sports is £8 for adults and £1 for children, with under fives free. Free parking is available near the showfield. Gates open for exhibitors at 8am, to the public an hour later and close at 7pm.

Full details are on the official show website at www.kilnseyshow.co.uk or at www.foodand farming4real.co.uk.

There will be full coverage of the show in the Yorkshire Post.