So, you have not yet really found ANY of what you would call "fungus/mold resistant pure CBD" strains??
Well, there are really two main types of fungus/mold resistance – one is bud rot resistance (botrytis), and the other is leaf mold resistance (powdery mildew PM, septoria, downy mildew). (There is a 3rd type which is root and stem rot resistance, but this really isn't fully on my radar screen yet.) A pheno that is bud rot resistant may
not be leaf mold resistant, and vice versa. It's also possible that a pheno is both bud rot and leaf mold resistant, which is the case with my current best THC pheno, Humboldt Dream.
I found that Seedsman 30:1 CBD was resistant to bud rot, but highly susceptible to PM. I think the pheno was sativa leaning. The buds tested around 11% CBD. With a bigger pot and better care, it may perform better. I decided not to grow it anymore. [
harvest report]
The other CBDs that I've grown usually have some bud rot, including the Sweet Critical which tested out at 15% CBD. These all seem to be indica dominant. I've had mixed results with my legacy CBD phenos, which came from seed of the strain Cherry Blossom. I think the best of that bunch is the #18, which is a short, heavily foliated, indica dominant pheno with heavy resin production. Sometimes I get decent harvests from the #1 and #9 as well. Generally, though, with the possible exception of #18, I don't view these phenos as particularly fungus/mold resistant.
I've had mixed results with my legacy CB
G pheno. Last harvest was completely clean, no bud rot, no leaf mold. [
harvest report]
A word about "pure CBD" strains... what you are referring to are chemotype 3 strains, which are high CBD and low THC. These are sometimes referred to as "CBD hemp", although I really don't like that terminology. When somebody says "pure CBD" they mean chemotype 3, as opposed to chemotype 2 which are sometimes called "one-to-one" strains because they contain both high levels of THC and CBD. Most chemotype 3 strains produce around 10% CBD, while THC is under 1%. Some phenos of some strains produce more than 10%, for example 15% or 18%, or even 20% or a bit more. So far the best I've been able to find is Sweet Critical which tested at 15%.