Are Rugose and Potato more disease resistant to foliar disease ?

[BlackBear]

Thanks to all for all the insight !....

I guess it is for the gardener to observe and learn ....to what is working and most "disease resistant" for the local environmental matrix in your situation . Some things you can control ....some things you can't . I sure think having a negative pressure isolation quarantine area for my Tomatoes would be peachy keen .

I was thinking that a thicker dermis etc. and potato leaf was a bit more resistant and would slow the progress enough of a foliar disease ...to be of use .

In June just as full flowering was taking place ...we got an 11 day stretch here of rainy sub 20C weather ..... (I did travel about an hour south to Nanoose/Parksville and it seems the spring climate was a bit warmer/drier/ sunnier to make a huge difference).

I got some early blight ! usually late blight is one to worry about .


Legend was a Pull out ...so no even getting to the legendary "late blight " resistance .
Some "improved varieties " seem to me to be less resistant ...I guess if there was no disease in the area the " improved " varieties would produce a higher yield ?

For me ..it seems Matina and Silvery fir and EM champion , Juliet are some that are "tough"
Fuzzy Wuzzy also .


There must be a Tomato law out there that the tastiest tomato varieties are the least disease resistant ...LOL

[PaulF]

When foliar disease hits here it is non-denominational. Most years there is no problem, the few times it is a problem no plant is spared.

We have lots of heat and humidity but not like the southeast so there is not much problem here until the plants are mostly spent and react to stress a little more. No real proof through study but anecdotally I remember no one leaf type being more susceptible.

[SharonRossy]

My experience with dwarf varieties is that they get hit very hard with fungal disease and white flies or whatever the heck it was. Last year I finally had to cut them down, it was too rampant. We have had very hot and humid weather here in Montreal with burst of rain, and continued humidity. My neighbor is finding either powdery mildew or grey mold on her leaves, both PL and RL and sprayed today with Serenade. I'm keeping my fingers crossed, as I have also been spraying with Serenade and another fungicide.

[efisakov]

I never had wilt on PL. Have anyone experienced wilt on them?

[SharonRossy]

Ella, nope, never on a PL. And I hope that remains the case.... I had it with RL in the past.

[BlackBear]

Originally Posted by SharonRossy

Ella, nope, never on a PL. And I hope that remains the case.... I had it with RL in the past.

This is the sort of 'anecdotal" observation that is interesting

while it is true all leaf types can succumb to the pathogens d- jour ...

it seems some have a tougher resistance and the course of the disease is at least slowed down enough to ....to have a higher chance of good yield over the finish line .

I think the wispy hearts ...have something going for disease resistance (though they can look sickly even when healthy ).

I think there is something to fern like leaves of Silvery fir ...

I think for me some potato leaves produce nicer blemish free fruit (you can debate taste later).

I may have to rethink my rugose leaf Tomato line ( I will not be giving up Mano , Yaponskiy karlik , Roza vetrov, Betalux or Cyril's choice, Ola Polka etc. )