I have read my peach book “the peach : world cultivars to marketing” when i some time ago read about peach varieties and rootstocks, when I read on internet there is now days more choices to choose for peach rootstocks. Well i guess nursery might have more choices, but i found fruit grower have less choices, i got the rootstock for my Red Heaven which nursery had. In U.S.A. Lovell peach rootstock look common. I have Red Heaven on St Julien A rootstock, which is Prunus Institia.
When i looked about variety descriptions and rootstock, there is good amount information about peach variety descriptions and test results showing sweetness of peaches, production level, growing results and taste. I used english, Italy, slovenia, spanish language on internet to get information.
I found some information on peach rootstock on internet, but I got some research from library which cost money because some information showed only summary of test results on internet. I used many language here too to get information. I got quite good idea about peach rootstocks, but information is somewhat contradictory. For example I remember Lovell peach rootstock is said to not produce suckers, but I saw one result each somewhere has made a sucker. I think still it is generally right to say that Lovell don’t produce suckers. I have founded that you can have peach tree on other fruit tree too, but it should be relatively close to peach in other words Prunus. Peach is Prunus persica in latin name. I have looked peach, almond, plum both European and Asian species rootstock information. I have read information about how rootstock affect peach tree size, flowering, fruit size, different aspect of fruit sweetness sucrose was one if i remember right, drought resistance, water logging resistance, different nematode resistance, some disease like armillaria mellea. As you can use some plum and hybrid rootstock, there is need that those are compatible with fruit tree varieties. Not all like to work well on peaches, for example Prunus Besseyi western sand cherry doesn’t like to work with peaches alone well. I have looked quite a bit information about nematodes, it didn’t look feel good so much there was bad things about peach rootstocks in those nematodes. As I looked those peach rootstock, i needed to look those earlier mentioned fruit tree rootstock too to get more and better image of this rootstock thing. I have only read on internet and papers i don’t have own experience of this thing. I might have in my memory some information about those rootstock, but i am quite quiet people, so i don’t write much. Here is few things which i can write.
Adesoto which is Prunus Instita from Spain rootstock for peaches, and have showed good graft computability with almonds, apricot, european plum and Japanese plum. It produces suckers. It might have resistance of armillaria mellea which is in South eastern U.S.A. second deadliest disease after bacterial canker. It is oak root rot or maybe honey fungus which it causes. It can kill peach trees. As it is plum it don’t get much of root knot nematodes, results from Spain has it on highly resistance on resistance rating. On my peach book it have image on that nematode, which if peach is attacked by this nematode it can’t get proper conditions any way. This seems to be 1 of 3 biggest nematodes for fruit tree crops. I think this nematode is in southeastern U.S.A, i think it is less problem in northern U.S.A, as i think it needs warm soil.
I might mention Ishtara rootstock which was in Michigan, Ann Arbor there for european plum variety Stanley test, If i remember it increased fruit size about 10% and produced big crop. I haven’t checked it recently, so i might remember wrong. There was no hardiness issue in rootstocks Michigan, but early in test Ishtara was wobbling in wind, as i guess it had so much weight on fruit. That didn’t happen in later time in test. Ishtara is hybrid from France, it is (cherry plum x Asian plum) x (cherry plum x peach), (Prunus cerasifera x prunus salicana) x (prunus cerasifera x prunus persica) rootstock for peaches, apricot and plum, although i have seen it having almonds on it in California. It rarely sucks. It is susceptible to bacterial canker, as is most rootstock. Almond yield was little bit better than Lovell on Ishtara rootstock. Lovell is somewhat resistance for bacterial canker, relative term although. I think we don’t know rootstock which is immune for that disease.
I have read something about borers, that some peach trees have died off it. I don’t know information about this, but it looks like those goes to trunk or slightly below it inside trunk. Some kind of moth when i looked on internet. I have read on Massachusetts peach test there when plantings got attacked borers, ishtara was resistant, One book says “has shown good resistance peach tree borer in the U.S.A. (Synanthedon exitiosa).”. I don’t know more about this, resistance for this moth other than this. Lovell has advantage that it is peach so it have good graft compatibility for peaches. I think means no much worry about rootstock not taking some peach varieties.