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Growing Tomatoes in Colorado!

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Page 1: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Growing Tomatoes in Colorado!

Page 2: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

It all starts in the Soil!

• Amend your soil so it has a great amount of organic matter.

• Add the Ultimate Potting mix if needed.

• Work it in the top 4 to 6 inches!

• Add Soil Activator and water it in!

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Page 3: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Don’t Plant too Early!

• Tomato plants need night temperature above 32°F and daytime temperatures above 60°F. They are killed by a light frost. A week of cool daytime temperatures (below 55°F) will stunt plants and reduce yields.

• Get a Jump start by warming up the soil.– Fabric – Hot Caps, Wall‐o‐Waters, Grow Covers

Plant Early, Plant Often!

Page 4: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Planting!

• Avoid, unnecessary contact with the Soil!

• Don’t be afraid of tall, “leggy” plants!– Pinch off lower branches– Dig a trench, small mound under.– You’ll get more roots and more fruit!

• Plant and Mulch, all in the same day.

Page 5: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Support and Prune!• Stake or Cage your Tomatoes to keep them from touching the ground and to allow light to penetrate evenly throughout the plant.

• Prune at planting to keep leaves from touching the ground.

• Prune suckers to increase light and Yield.

Page 6: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Tomato CagesCages that are not cleaned can harbor the spores for many types  of fungus and bacteria.Remove all plant debris.Hose off all remaining dirt.

Clean with Consan 20

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Page 7: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Mulch!• Mulch is recommended to conserve soil moisture and manage weeds.

• Mulching helps reduce the splashing of Early Blight fungal spores from the soil onto the leaves.

• Black Fabric is popular, warming the soil and pushing production two to three weeks earlier.– When using fabric, plant early so leaf growth covers and shades the fabric before summer heat sets in.

• Use Organic Mulch– Improves the soil every year.

Page 8: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

They Don’t Like Water on Them!

• Avoid overhead sprinkling on Tomatoes.• Water on the leaves creates a favorable environment for disease development.– Fungus spores are easily water‐splashed from one leaf to another.

• Encourages Fruit Cracking.• Watering in the morning, allowing plants to dry before nighttime, may also be helpful.

• NO on Sprinklers.• Yes on Drip irrigation, soaker hose or trench

Page 9: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Fertilizer• Colorado State recommends two times and types of fertilizer.– At or near planting 2 or 3 applications of a high Phosphorous water soluble fertilizer, such as Blooming and Rooting.

– Again when the first fruit are about two inches  around.  At this time a granular fertilizer such as Tomato Vegetable Food is recommended.  Repeat every 3 to 4 weeks as needed.

– Don’t OVER fertilizer use the proper amount.

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Page 10: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Early Blight Spots form on leaves, having 

concentric rings, resulting in a “target” appearance.

Premature loss of lower leaves   is the most obvious symptom of the disease.

Brown to black spots with dark edges, appear on the lower leaves. 

Leaves turn yellow and dry up when only a few spots are present. 

The fungus occasionally attacks fruit at the stem end, causing large, sunken areas with concentric rings. 

Warm, wet weather favors the rapid spread of early blight, it   can also infect potato. 

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Page 11: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Septoria Leaf spot

The most common foliar disease of tomatoes.  It first appears as small, water‐soaked spots                                                       

that soon become circular spots.  The lesions gradually develop grayish white centers with dark edges.  Fungal fruiting bodies appear as tiny black specks in the centers of the spots.  Spores are spread to new leaves by splashing rain.  Heavily infected leaves turn yellow, wither, and eventually fall off.  Lower leaves are infected first, and the disease progresses upward if rainy 

weather persists or from overhead watering. The fungus survives the winter in tomato debris.

Page 12: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Blossom end rot

Blossom end rot is caused by a calcium deficiency that is related to wide fluctuations in available moisture and from plants “resting” when soil temps are too cool.  

To prevent blossom end rot, maintain a steady rate of plant growth without stress. 

A consistent and ample supply of moisture can reduce the problem by helping to maintain a steady flow of calcium from the soil to the fruit. Mulching will also help conserve moisture.

Do not plant before Avg. last frost, preferably 2 weeks after.

Page 13: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

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Page 14: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

23Tomato & Pepper Set

Contains: Cytokinin

• Use on Tomatoes and other fruit crops to promote blossom set and fruit development.

• Also use on; Beans, Cucumbers, Eggplants,Melons, Peppers, Strawberries and Grapes.

• Apply at first bloom and repeat every 7 to 14 days

• Focus spray on and around blossom, targeting the area just behind the bloom where attached to the stem.

• Results are larger, meatier fruit that ripen up to 3 weeks earlier.

Poor Blossom Set

Page 15: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Sun Scald Sunscald occurs on green tomato fruit exposed to the sun.

The initial symptom is a whitish, shiny area that appears blistered.

The killed, bleached tissues gradually collapse, forming a slightly sunken area that may become pale yellowish and wrinkled as the fruit ripens.

The killed tissue is quickly invaded by secondary organisms and the fruit decays.

Plants most subject to sunscald are those that have been exposed suddenly to the sun because of pruning, natural spreading of the plant caused by a heavy fruit load, or loss of foliage from diseases.

Page 16: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Leaf Roll Physiological leaf roll occurs when the edges of the leaves roll upward and inward.

Sometimes the curling continues until the leaf margins from either side touch or overlap. 

Some leaves on the plant may not exhibit rolling.

Leaf roll does not reduce plant growth, yield, or fruit quality. 

It is believed to result from irregular water supply, and may be intensified following pruning. 

The symptoms are sometimes temporary, disappearing after a few days, but can persist throughout the growing season.

Page 17: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Herbicide Damage

This is caused by misapplication or drift of 2,4-D, MCPP, and other growth regulator herbicides. Tomato plants are highly sensitive to these chemicals. The first symptom is downward curling of leaves and tips of growing points. Leaves often become narrow and twisted toward the tip, with prominent, light-colored

veins. The symptoms are most pronounced on portions of the plant that were actively

growing when the exposure occurred. In severe cases, stems and petioles become thick, stiff, and brittle with warty

outgrowths. Affected plants may recover, but the fruit may become cat-faced or develop in a plum

shape, and may be hollow and seedless.

Page 18: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Tomato Hornworm6

Page 19: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Flea Beetles6

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Page 20: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Spidermites7

Page 21: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

Sanitation

• Control weeds and grasses around Tomatoes, they harbor many insects and sap much needed nutrients.

• Clean up debris every Fall and remove, DON’T compost dead Tomato Plants.

Page 22: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development
Page 23: Growing Tomatoes in Colorado!spencersgardens.com/wp-content/uploads/2015/03/Colorado-Tomatos.pdf• Use on Tomatoes and other fruit crops to promote blossom set and fruit development

QUESTIONS?

THANKYOU!