Just started renting a 22 AC feild near me theirs rivet runs throw them more feield
We went to feild for afternoon to check my horse and electric fencing we put up up at river
we notice smoke and three dogs lose in neighbors. Feild we told farmer that feild it was their was men with dogs having campfire the farmer asked them to move I went to check my fencing at river their was couple couple with dog of lead and campfire right next to my fence my fence had been knocked down I asked couple to put their dog on lead and fire our I explained. Its now private property and horse in feild they got very abuseive with we and nasty
I phoned lady I rent feild from she said I did right thing and she has ordered sighns IV put signs up saying electric fencing
The lady I rent from reporting it to police about abusive couple
I was left shaking

looking at your location your in Scotland right? if so id check the Land Reform (Scotland) Act 2003 to see if your land would come under the act, if it does people are allowed access to it for recreational use.

Some highlights from the Scottish Outdoor Access Code, from reading this it sounds like your field comes under the places where people are allowed access, so tecnaly they are not trespassing but they shouldn't damage your fencing and should keep dogs under control be either on sort lead or keeping it close around live stock.
http://www.snh.gov.uk/docs/A309336.pdf

"You can exercise these rights, provided you do so responsibly, over most land and inland water in Scotland, including mountains, moorland, woods and forests, grassland, margins of fields in which crops are growing, paths and tracks, rivers and lochs, the coast and most parks and open spaces."

"You can exercise access rights for recreational purposes (such as pastimes, family and social activities, and more active pursuits like horse riding, cycling, wild camping and taking part in events), educational purposes (concerned with furthering a person's understanding of the natural and cultural heritage), some commercial purposes"

"Provided you do so responsibly (see Parts 3 and
5 of the Code), you can exercise access rights in places such
as:
*hills, mountains and moorland;
* woods and forests;
* most urban parks, country parks and other managed open
spaces;
* rivers, lochs, canals and reservoirs;
* riverbanks, loch shores, beaches and the coastline;
* land in which crops have not been sown;
* on the margins of fields3 where crops are growing or have
been sown;
* grassland, including grass being grown for hay or silage
(except when it is at such a late stage of growth that it is
likely to be damaged);
* fields where there are horses, cattle and other farm animals;  <---- Asume your field come under this
* on all core paths agreed by the local authority4;
* on all other paths and tracks where these cross land on
which access rights can be exercised;
* on grass sports or playing fields, when not in use, and on
land or inland water developed or set out for a recreational
purpose, unless the exercise of access rights would
interfere with the carrying on of that recreational use;
* golf courses, but only for crossing them and providing that
you do not take access across greens or interfere with any
games of golf;
* on, through or over bridges, tunnels, causeways, launching
sites, groynes, weirs, boulder weirs, embankments of canals
and similar waterways, fences, walls or anything designed
to facilitate access (such as gates or stiles)."

In Scotland people have the right to roam over most land, including your field, dogs are allowed to run in any field providing there are not growing plants (over 12" I think) or animals with young. Interestingly even if fields with sheep dogs don't have to be on a lead any more, just under control and not harassing the sheep.

I often walk over farmers field with the dogs off lead, including fields with grazing horses, you're in Scotland you have to get used to that. People may also ride over your field, cycle or pitch a tent and camp there :-)

edited to say I see this has been answered more fully above.