Fungus Free Tomatoes - Knowledgebase Question

Canton, OH
Question by fbrookin5
July 11, 2000
Does Burpee Seed Company sell by mail order fungus free tomato plants? I ask this question as I have had the tomato blight problem for some years now. Done everything suggested. But this year I started with sterilized soil in buckets with decayed horse manure from a stable some miles away. Bought my 13 plants from four different nurseries. Guess what I have tomato blight. I am convinced that the source of the on going problems with blight is the garden stores, who give you a fresh does of the blight every year. They do nothing about the problem as well as seed companies because the problem does not show up until the plants and seeds are long gone out of their possession.


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Answer from NGA
July 11, 2000

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It sounds like it is time to go on the offensive against early blight. There are several things you can do to minimize its spread. The disease affects both potatoes and tomatoes, so keeping these plantings far apart can help control the spread. Plant your tomatoes in a new location every year, and avoid planting them where potatoes have grown. Choose tomato varieties that have flat leaves as opposed to curly leaves, which take longer to dry off after rain and are thus more susceptible to fungal infection. When spots first appear in early summer, cut off the leaves and destroy them. Then spray the plants with compost tea. You can make the tea from aged compost that contains some manure. Add one part compost to five parts water in a bucket and let it sit in the shade for 2 weeks. Then filter and spray on a cloudy day or in early evening. Wet both sides of the leaves. Repeat every 2-3 weeks. Another strategy for managing early blight is to set out some plants in the spring while leaving space for more plants to be set out in early and midsummer. The older leaves are the most susceptible to the fungus, so if you have plants at different stages of growth, you are more likely to have some relatively free of the disease. Since plants under stress are more likely to be attacked by disease, be sure to keep your plants well watered (preferably avoiding overhead watering) and use mulch to conserve soil moisture.

Burpee offers several highly resistant varieties. You can reach Burpee at 1-800-888-1447. Try 'Better Boy', 'Celebrity', 'Burpee's Supersteak Hybrid', or 'Sweet Tangerine'.

I hope your garden next year convinces you not to give up on tomatoes!

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