My tomato plants wilted rapidly. When I cut the stem open, I found a brown ring around the inside.

1 Answer

Answer :

A. This is fusarium wilt caused by a soilborne fungus that attacks tomatoes and other crops. Use resistant varieties to control this disease. Most commercial tomato varieties are resistant. Before you plant a cultivar, make sure it is resistant to fusarium wilt. This resistance is denoted by the letter F after the name; for example, Celebrity VFN.

Related questions

Description : We planted tomatoes in our small garden. They are loaded and are the best tomatoes we have ever had; however, there are some small holes near the stem end of the tomato. When we cut the tomato open, there is a small worm inside. What is it and what can we do?

Last Answer : A. Your fruit has been invaded by the tomato pinworm. They usually do not damage all fruit and can be controlled only by a preventive insecticide spray every 7 to 10 days. When the damage is evident, it is too late to do anything about it.

Description : My tomatoes were healthy during the spring and early summer; yet after a rain, they wilted and died very rapidly. I found a white fungal growth at the base of the plant.

Last Answer : A. This is southern blight, a soilborne fungus that lives on organic material in the soil. Deep burial of undecomposed organic material in the soil reduces this problem. Control foliage diseases of ... up near the plant and cause damage. Crop rotation also reduces the incidence of southern blight.

Description : My tomato fruits have small yellow specks on the surface. When the fruit is peeled, those yellow specks form a tough spot that must be cut off before eating the tomatoes. What is wrong?

Last Answer : A. The yellow speckling is caused by injury from sucking insects such as stinkbugs or leaf-footed bugs. Early control of sucking insects that feed on the fruit is necessary to reduce the problem.

Description : My tomato plants are stunted and have pale yellow foliage. The root system has knots or swelling on the roots.

Last Answer : A. These are root-knot nematodes. Some varieties such as Celebrity and Better Boy resist this problem. It is best to use only nematode-resistant varieties. Nematode resistance is shown by the letter N after the name; for example, Celebrity VFN.

Description : My tomato plants look great. They are dark green, vigorous and healthy. However, flowers are not forming any fruit. What is the problem?

Last Answer : A. Several conditions can cause tomatoes to not set fruit. Too much nitrogen fertilizer, nighttime temperatures over 75 degrees F, low temperatures below 50 degrees F, irregular watering, insects such as thrips or planting the wrong cultivar may result in poor fruit set.

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Last Answer : A. During unfavorable weather (night temperatures lower than 55 degrees F or above 72 degrees F and day temperatures above 95 degrees F with dry, hot winds), tomatoes do not set fruit and the flowers drop. The problem usually disappears as the weather improves.

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Last Answer : A. Leaf roll (curling of the leaflets) is a physiological condition that occurs most commonly when plants are trained and pruned. Any type of stress can cause leaf roll. It does not affect fruiting or quality, and it is not a disease.

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Last Answer : A. Cracking is a physiological disorder caused by soil moisture fluctuations. When the tomato reaches the mature green stage, reduce or cut off the water supply to the plant as the tomato ... moisture fluctuation. Some varieties are resistant to cracking, and we try to recommend these varieties.

Description : Are there really low-acid tomato varieties?

Last Answer : A. Some varieties are less acidic than others. Some yellow-fruited types are slightly less acidic than the normal red varieties. Flavor differences between varieties are not because of differences in acid ... but the sugar-to-acid balance. Cherry tomatoes are higher in both sugar and acid levels.

Description : What causes some of my early tomato fruit from the spring garden to be oddly shaped and of poor quality?

Last Answer : A. This condition is usually caused by stress and low temperatures during flower formation, bloom and pollination. Fruit set when temperatures are 55 degrees F or below often are odd- ... temperature conditions and grow into abnormal, oddshaped fruit. Another name for this disorder is catfacing.

Description : What causes my upper tomato leaves to turn yellowish and fall off?

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Description : Baked Cheese with Tomato Sauce

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Description : The lower foliage on my tomatoes is beginning to turn yellow and drop. The leaves have circular dark brown to black spots.

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Description : What causes the young leaves of my plants to become pointed and irregular in shape? I noticed the twisting of the leaves and stems after spraying the plants for the first time.

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Description : When caging tomatoes, how large are the cages?

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Description : Will tomatoes become fully ripe and red if they are harvested early?

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Description : How do you select good transplants at nurseries or garden centers?

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Description : What causes large, black spots on the bottom or blossom end of my tomatoes?

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