To get a Combee you should put honey from the flower town on a orange tree, then come back to the tree tomorrow (in real time) and stand close to the tree and press the A button and battle the Combee! (Warning the Pokemon may not be a Combee! Also do not kill it!) And if you want a QueenBee make sure it is a female Comebee.
No trainer has a combee in diamond and pearl but you can find a combee on trees you put honey on. There is a trainer in route 208, she has combee and Roselia
I doubt it as combee appeared first in Diamond and Pearl
put honey on a tree
evolve a girl combee at lv20
Yes there are trainers that will have a Combee and a Lumineon, an Aroma Lady in Route 208 has Combee and a Swimmer in Route 223 has Lumineon.
Near Hearthome City The Lady (Near The Berry Master) 15 catch Combee with sweet honey
combee. you can see one is slouther honey on a tree.
No and you have to wait at least 12 hours
when you put honey on a tree on Pokemon diamond you have to wait 12 hours then go back to the tree and if it is rustling press A on the tree and you will battle a pokemon. It is a have a high chance of battling a Combee.
53 is combee and 54 is vespiqueen 53 is combee and 54 is vespiqueen
Catch a female Combee, then level it up to 21.
Evolve a female combee at level 21