Hi Avila,
Welcome to the forum, You might go thru this thread that addresses the topic, you can also use the hourglass search to look for other threads about your subject.
It appears that most Asian varieties are less susceptible, and another thought to consider is that you will have many more varieties of plums, pluots, apriums, and Plumcots that are cross pollinators among the Asian- Japanese varieties than if you go first with P domestica European plums. European plums will not cross pollinate other varieties. So if you are thinking about having only a few standard sized plum trees but you want good production, you stand a better chance of getting you best production of fruit with a number of cross pollinating varieties.
The other important point to remember is that to get two varieties to support each other with pollen, you need to match blossom schedules! This is true for most types of fruit trees. Unless you have about a couple weeks of matched blossom periods, cross pollination will not occur. So it’s much better to have a several varieties near each other to encourage pollination and greater fruit set.
I keep a blossom schedule each year for that purpose. You might locate a member near you who does this as well.
Here is my plum blossom schedule for this year for example:
2023 schedule: code FB = full blossom, BAL = Balloon, PF = petal fall
On 3/20/23: Cherry Plum: FB
On 3/23/23:
Kuban Comet: FB
Obilnaya: FB
Ozark Premiere: FB
Methley: FB
On 4/6/23:
Methley: FB
Beauty: BAL
Sweat treat: FB
Oblinaya: FB
Flavor king: BAL to FB
Satsuma: BAL to FB
Adara: FB
Luisa: BAL to FB
L3 : BAL to FB
Kuban comet: BAL to FB
L4: FB
4thStreet: FB
Black Splender: BAL
Ozark premiere: FB
Dapple Dandy: FB
Nadia: FB
Opal: FB
Friar: BAL
Geneva Mirabelle: BAL
Shiro: FB
Bills yellow plum: FB
Good luck
Dennis
Kent, wa