Girl trouble - rivalry?

[MyBoyChe]

Ess pup Chloe is now 8 months old and on the whole is a very well behaved girly. The one issue that seems to have developed is that she has started to pick on Rosie, my old ESS who is nearly 14. Rosie is a bit deaf but overall in very good health and to her eternal credit is very good with Chloe, ignores her most of the time and when shes had enough she will get up, walk off and find herself somewhere different to sleep, occasionally she will growl but more often than not just takes no notice. By 'pick on' I mean that she will stand and bark at Rosie to try and get her to move from where she is sleeping and sometimes as Rosie walks off will jump on her and growl (never attacks as such, just hassles her). Im fairly sure this only happens when Im around as the neighbours tell me they dont hear barking or arguing whilst Im out! They are all fed together with no problem, and, whilst left alone they all have the run of downstairs (I also have a 10 year old IWS neutered male who madam never bothers). If speaking firmly to Chloe to tell her to come away doesnt work (sometimes she will listen and come straight over) I go to her, repeat the instruction whilst dragging her away. Normally she will go straight back and after several attempts to get her to stop I shut her out of the room. She settles down straight away but obviously I would prefer not to have to keep doing this. They all get equal measure of attention, the only time they are separated is for walks, the two oldies dont and cant do the same distance so OH walks them and I take Chloe on her own, she gets 3 x 20 minute off lead walks a day and the garden all morning, I work afternoons. Any suggestions please on how to stop this behaviour?

 

[SKY]

she's just at the age to have puppy fights and be really annoying to the part that she makes them get up to try and have play fights jumping up and down.
it's just her age if they were younger they would join in. its a case of keep on telling her of if she really annoys her. but she will just be at this stage to be a real messer. you could play chase or tug of war with her when you see her wanting to play, if she is just being really annoying, tell her of and put her out of the room for few mins, agnore any wimpering, just the puppy in her, she will learn they are not interested, she just cant help it at min, just a puppy.

 

[millimoo]

Personally I would nip it in the bud now.... shutting out of the room seems sensible.
I've witnessed first hand things like this escalate - and bitches can bear grudges for life.
I realise she's a pup, but she's at the age that she's ascerting her authority, and is the perfect age for sorting it out.
Sorry I can't add much else, but hope you sort it soon