
One says it is alpha problem and one says it is not....I would suggest trying Brainless' idea and if that does not work then buy a copy of the book Tohme suggests...
The good things of these forums is to give people many idea's on how to deal with problems and what we may think it is...It could be an alpha thing and then again it could not be but no one know's for sure cause this is not our dog and we do not live with it.....But atleast Thumper has some idea's to go ny to help her rid the situation she is in with her dog.
Another good book that I have found to be a great help is:
Good Owners, Great DogsBy:
Brian Kilcommons and Sarah Wilson There is alot of helpful stuff in this book, I for one have found it to be a great help.
One good thing to teach a possessive dog is the leave it and out command, work on this. Really work more on your basic obedience like sit, stay, come, leave it, out commands keep them short and always praise/treat and have a short play time when session is done...maybe do them 5 minutes thro out the day gradually working up to 10 min ect. Don't always do them in the same order or else they will know what your going to say and do the command before you say it. You can also keep your dog on leash this way if you want her to stop chewing something give the leave it or out command, if she doesn't listen simple grab the leash and remove her you will be at a safe distance and only tell her once. Have you tried offering her something else to chew this way she will not have a problem giving up chewing her blanket? I have found when taking something away praise for them letting you take it then give it back, this way if you take away and not give back they will be more possessive over their stuff and less likely to let you have it. if your dog is already growling at you over the blanket you can ignore that and give another command like come and praise your dog right away, because if you are fighting with your dog about chewing the blanket and she is growling your only going to make it worse. Have your children do some command and if the dog does not sit by them when told you make dog sit but the child praises/treats the dog so they know they must listen to them as well, also have your children feed the dog this helps to.
me personally I would really work on basic obedience and find her place in the pack with the family as well as the other dogs. I have 5 dogs and they all have a place, I treat in a specific order/walk/pet ect and this has seemed to work very well. I do not leave dog toys laying around cause they are all mine and they only get them when I say so. I know alot of dogs that chew their bedding, I have one that likes to put big holes in his blanket even tho he has a chew bone but guess thats a small price to pay since thats the only damage he does and its his blanket. Mt breeder has a bitch the literally sucks on the corner of pillows and a blanket and she's 4 years old and has done this even before a litter....As with the puppy you kept do you do alot of affection to this puppy and make a big deal about it? If so this could make her jelious
Good luck and I do hope you are able to get your girl sorted out.