Post by bjargakarlinn on Feb 18, 2012 9:38:17 GMT -5
Anybody have any experience growing Tepary beans in the Southeast US? I'm interested in their supposed drought tolerance and disease resistances, but I want to know more about them before I dedicate garden space.
Post by 12540dumont on Feb 18, 2012 14:05:15 GMT -5
I decided not to grow them because of Anthracnose
Anthracnose is a worldwide disease of beans caused by the fungus Colletotrichum lindemuthianum. Common bean is very susceptible to this disease, as is tepary bean,. Scarlet runner bean, lima bean, and mung bean are somewhat susceptible. Anthracnose is one of the most important bean diseases. It is worse in temperate regions. Under cool (60o F), wet conditions, the disease can cause complete loss. It can cause disease at all stages of plant growth, from seedlings to growing pods.
The fungus survives in the seed, so it is important to use certified disease-free seed, or seed that has been hot-water soaked or fungicide treated. Use of a three-year crop rotation is recommended. Keep the fields weed free for good air circulation during the season. It is important to plow under bean refuse immediately after harvest as the fungus survives in debris as well. Resistance is available for this disease, but there are several races of the fungus, and it is important to know which races are in the area before varieties are selected for planting.
Now, I love beans so I'm very reluctant to bring in anything else that might infect them. So, I've decided to plant them in an isolated area and see how they go. Carol Deppe did a "wide" cross (ask Joseph, it's like folding corn...and the jitterbug, so simple it plum eludes me) of a tepary and and Gaucho. I'm going to try trial this variety, but far away from everything else.
I've grown them a few times, just out of curiosity. Can't attest to their drought tolerance as we have wet summers (relative to winter). They grew well with little attention and produced well. You'd need a lot of them though to get a meal out of them and threshing is more tedious that with common beans though there are plenty of winter evenings.
Ray Silty loam over clay, pH 5.5, altitude 1000m, latitude 30deg south, 150 frost free days.
Post by bjargakarlinn on Feb 18, 2012 15:42:25 GMT -5
Raymondo, do you mean the seeds are small or the plants don't yield well?
Dumont, there's not much I can do about anthracnose, but the tepary bean strains I've been looking at apparently have near complete immunity to several fusarium races, so I'd like to incorporate them into my pole bean mix.
I grew tepary beans last year and really liked them. I'd say the beans are both small and moderate yielders, I didnt get enough really for a proper meal either. However, from the Mitla Black variety from Seeds of Change there was some interesting diversity in pod colour, ranging from plain to speckled to bright purple. I thought they were interesting in the garden with their violet flowers as well. I really only watered them twice, the rest of the season they were fine. Planted them in June in the central NY area.
I've grown what are probably the 3 most common with excellent results from each. They are Blue Speckled, Mitla Black, and Sonoran Gold. All 3 produced about the same per 18' row and that was about a quart.
I can attest that they don't need a lot of water. First time I grew the black one they were planted into what I would consider very dry soil. About 5 days later, with no rainfall or watering, whole row was up! I have grown at least one variety ever since in both dry and wet summers with no apparent problems. Could be due to well-drained soils.