|
Growing tomatoes organically not only
benefits the soil, it is great for your family's health. An important step to successfully grow tomatoes in hot summer climes is choosing varieties that are disease resistant and heat tolerant.
At least twice during the growing season sidedress
and water-in an organic fertilizer at 25 to 30 pounds per 1,000 square feet or a palm-full per plant. Good choices are compost, cottonseed meal or fish meal. Toss the fertilizer in the root area and
lightly scratch into the soil or water in. The first fertilization should be when the first fruit are still tiny. Use mulch to deter insects and weeds and help keep moisture level even. Even moisture is
important for a successful harvest. Water the soil, not the foliage to avoid diseases. Water slowly and deeply.
If the wind does not blow this spring or you have
no bees in the garden to pollinate, then shake your tomato plants. This tactic has proved to increase production in greenhouses that do not receive wind. Take hold of a firm area of the plant's stalk or
hold the tomato cage and shake.
To foliar feed your plants, lightly spray compost
tea every few weeks on the plant's foliage and deter insect pests. To make compost tea, fill a container half full of manure compost. Add equal parts of water to fill the container. Allow the solution to
ferment for at least 48 hours. Strain the solids and dilute the solution to an ice-tea color (4 to 10 parts water to one part compost). For just a few plants, a convenient process is to tie compost in
cheesecloth or old hosiery and hang it over the edge of a container. After at least 48 hours, just remove the material containing the compost.
Compost tea is sold in premixed solutions at local garden centers that carry organic products.
In combination with compost tea or separate, spray
foliage with fish and seaweed, vinegar, Epsom salt and molasses (one tablespoon of each per gallon of water) every two weeks. This spray will deter aphids from sucking on the young growth of the plants.
A strong stream of water or release of lady beetles (lady bugs) or green lacewings can also fight pests.
Occasionally, thrips will not allow blossoms to set.
Signs of thrip damage are streaks or black spots on plants. The entire plant can take on a streaked, dull, grayish cast. Treat organically using a garlic tea spray (homemade or commercial) or a neem
product which is sold in at local garden centers. To make a homemade garlic tea, chop three garlic bulbs in a blender with two cups of water. Strain out the solids. Make a spray by diluting 1/4 cup of
the tea with 1 gallon of water. Store remainder of concentrate in a plastic container with a loose-fitting lid. Do not use a glass container with a tight lid or the solution will explode. Shake well
before each use. Spider mites also dislike the garlic spray or a spray of water. Spraying every three days during a nine-day period should solve the problem of thrips or spider mites.
Early blight is another plant disease. It begins on
the oldest leaves, low on a plant where it is dark and moist. Leaves begin to look sickly, turn brown or yellow and hang loosely from the stem. Black spot appears in dark spots on foliage. Powdery mildew
is a whitish powdery look on foliage. Brown patch and other fungal diseases are discoloration on foliage. Control all these fungal diseases with a baking soda spray. Mix four teaspoons with one teaspoon
of a veggie oil or horticultural oil into one gallon of water.
Spray any of these solutions during the cool morning
hours to avoid quick evaporation.
Good varieties for North Texas are Better Boy,
Brandywine, Carnival, Celebrity, Porter, Roma, Salsa, Super Fantastic, Supersonic, Sweet 100s, and Viva Italia. When purchasing tomatoes, buy a companion plant to attract pests that may infest tomato
plants. Companion plant with borage, basil, carrots, chives, onions, parsley and peppers. Some companion plants lure pests to them and away from the tomato. Others act as a repellant because of their
aroma.
Your local agricultural extension agent can provide lists
of good varieties for your area or join a local garden club to receive first-hand advice from local gardeners. May all your tomatoes be plump and juicy!
Return to Organic Guide
Home
Gail I. Morris writes this column for the
Star-Telegram. She is a member of the Organic Garden Club of Fort Worth and Cross Timbers Master Naturalists.
|