Petee Posted August 4, 2012 Share Posted August 4, 2012 Late Blight on Bittersweet. I think we've all had this pestilence growing in our gardens! Ugh, a carrier of Late Blight if the fruit ends up underground for the winter. Go to the bottom of the photo section. http://www.longislandhort.cornell.edu/vegpath/photos/lateblight_tomato.htm Link to comment Share on other sites More sharing options...
terrdog Posted August 4, 2012 Share Posted August 4, 2012 Late Blight on Bittersweet. I think we've all had this pestilence growing in our gardens! Ugh, a carrier of Late Blight if the fruit ends up underground for the winter. Go to the bottom of the photo section. http://www.longislandhort.cornell.edu/vegpath/photos/lateblight_tomato.htm So is it best at the end of season to make sure no fruit gets tilled under? Link to comment Share on other sites More sharing options...
Petee Posted August 4, 2012 Author Share Posted August 4, 2012 Yep, clean that garden like you're cleaning the kitchen. Spotless clear down through the top layers of soil. Check out these photos to see if it looks close to the bottom leaf damage that you mentioned. This is Early Blight. http://www.longislandhort.cornell.edu/vegpath/photos/early_blight.htm Link to comment Share on other sites More sharing options...
terrdog Posted August 4, 2012 Share Posted August 4, 2012 Yep, clean that garden like you're cleaning the kitchen. Spotless clear down through the top layers of soil. Check out these photos to see if it looks close to the bottom leaf damage that you mentioned. This is Early Blight. http://www.longislandhort.cornell.edu/vegpath/photos/early_blight.htm Yeah that looks like it petee, all the plants have it Link to comment Share on other sites More sharing options...
Petee Posted August 4, 2012 Author Share Posted August 4, 2012 Then you have an infected soil problem that will last from year to year. You need to make sure none of the soil ever comes in contact with your tomato plant leaves. Taking off the bottom branches helps as does some sort of barrier to stop soil from splashing up onto the bottom leaves when it rains or you water from overhead. Newspapers or mulch works good. Just make sure it doesn't touch the stem. You will still get good tomatoes but the amount will be smaller, and it will affect long season varieties (bigger tomatoes) worst. Link to comment Share on other sites More sharing options...
terrdog Posted August 4, 2012 Share Posted August 4, 2012 Will treatment for the soil work? Link to comment Share on other sites More sharing options...
Petee Posted August 4, 2012 Author Share Posted August 4, 2012 You could try solarizing your soil in the spring but it does a job on your microorganisms too. Maybe solarize and mulch. Rotate blight susceptable crops so you don't grow them in the same spot every year, and buy plants that have as many letters after their names as possible. There's more than this but here's a short list: http://www.tomatodirt.com/blight-resistant-tomato-varieties.html Note that smoking in the garden or having tobacco residue on your hands can cause diseases too. Alternaria is Early Blight. Disease Resistance Codes V Verticillium Wilt F Fusarium Wilt FF Fusarium, races 1 and 2 FFF Fusarium, races 1, 2, and 3 N Nematodes A Alternaria T Tobacco Mosaic Virus St Stemphylium (Gray Leaf Spot) TSWV Tomato Spotted Wilt Virus Link to comment Share on other sites More sharing options...
terrdog Posted August 4, 2012 Share Posted August 4, 2012 You could try solarizing your soil in the spring but it does a job on your microorganisms too. Maybe solarize and mulch. Rotate blight susceptable crops so you don't grow them in the same spot every year, and buy plants that have as many letters after their names as possible. There's more than this but here's a short list: http://www.tomatodirt.com/blight-resistant-tomato-varieties.html Note that smoking in the garden or having tobacco residue on your hands can cause diseases too. Alternaria is Early Blight. Disease Resistance Codes V Verticillium Wilt F Fusarium Wilt FF Fusarium, races 1 and 2 FFF Fusarium, races 1, 2, and 3 N Nematodes A Alternaria T Tobacco Mosaic Virus St Stemphylium (Gray Leaf Spot) TSWV Tomato Spotted Wilt Virus Thank you for your help. Link to comment Share on other sites More sharing options...
Petee Posted August 4, 2012 Author Share Posted August 4, 2012 You're welcome. I hope it helps. Link to comment Share on other sites More sharing options...
Delta Posted August 4, 2012 Share Posted August 4, 2012 Thanks, Petee. I was planning to ask you about this. Link to comment Share on other sites More sharing options...
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