Why Blooms Are Falling Off And No Fruit Setting On My Beefmaster Tomato Plants?

Filed Under: Vegetables · Keywords: Blooms, Flowers, Falling Off, Tomato, Plants · 1851 Views
The blooms are falling off and I can't get any fruit to set....what's wrong?

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Answer #2 · Gardenality.com's Answer · Not much I can add to John's thorough answer other than the possibility that there could be a calcium deficiency, which can cause blooms to drop. There are liquid formulations of calcium useful for preventing and treating plant physiological disorders associated with calcium deficiency. Check with your local nursery to see if they have a liquid calcium product. These products are usually referred to as "bloom set spray" and are intended to complement good soil fertility by supplying nutrients directly to the foliage, roots and fruit of crops during critical growth stages.

Lots of tomato growers insist that feeding plants with Epsom salts, which contains magnesium and sulfur, at planting time and at intervals throughout the season helps. There are studies indicating that Epsom salts helps to grow larger fruits and greener, healthier plants.

Let us know of you need more details or have any other questions.


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Answer #1 · Maple Tree's Answer · Hi Rebecca-There are several reasons that could cause your tomato plants to lose their blossoms. Blooms will not set without pollination. Blossom Drop is a condition tomatoes and other fruiting vegetables suffer when blooms fail to set causing blooms to die and fall off.

Extreme temperatures such as high daytime temperatures above 85 degrees F or high nighttime temperatures above 70 degrees F or low nighttime temperatures below 55 degress F can cause bloom drop. Extreme high and low temperatures cause the pollen to become tacky lessening the chances of pollination. Pollination may not occur if humidity is too high or too low which lessens the ability of the pollen to stick to the stigma. Unfortunately we can't control weather conditions that help to develop blooms or the fact that during these extreme conditions very often there are no insect pollinators around. This has been a hard year in many locations with extreme temperature changes. When temperatures or conditions stress the tomato plant it naturally goes into a survival mod putting its energy into the plants survival and not into developing blooms.

Although we can't control weather conditions there are a few things we can do to help fruit set.
Too high or low application rates of nitrogen fertilizer can cause blossom drop. Too much nitrogen encourages vegetative growth at the expense of flower production and/or pollination, resulting in little or no fruit set. Plants that are spindly without nice lush foliage are most likely nitrogen deficient and cannot support a crop therefore droping any developing blooms.

Tomatoes have deep root systems and require deep watering to moisten the soil to their roots depth. Shallow watering may not be providing the plant with enough moisture to develop a large healthy root system. Too much water can also create fungal diseases that will stress the plant also causing it to drop blooms. The tomato plant needs a consistantly moist but not wet or too dry a soil. The most common reason for bloom drop is too much or too little water.

Insect damage or disease can cause a tomato plant to drop its blooms. Always inspect your plants for any symptoms such as leaf damage, appearence of insects, spotting and/or discoloration of stems and leaves, or wilting of plant which may indicate a problem that would stress or even kill your plant.

We can't control the weather but doing what you can to ensure pollination and keep your plant healthy with good watering practices and fertilizing properly will hopefully produce a nice crop. Helping to pollinate may mean hand shaking the flowers to carry pollen to the stigma or planting flowers nearby that will attract pollinators. Water deeply, not quick shallow watering, when needed to keep soil moist. Don't over fertilize. If soil is healthy with enough organic matter a ballanced fertilizer at planting and again when fruit is forming should be all that is needed. Over fertilization (too much nitrogen) will only force new growth at the expense of bloom development.

Hopefully this has helped with finding a possible solution to your plants Bloom Drop.


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