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Aphids are Yellowish-pink to pale green plant lice that suck ......plant juices. They are a soft-bodied, oval/pear shaped insect and are commonly found on nearly all varieties of plants, vegetables, field crops, and fruit trees. Hot Pepper Wax
repels bugs from your plants, fruits and flowers. 100% natural spray uses pepper extract and wax to effectively discourage pests. Helps to reduce stress on cuttings. Aphids have many natural enemies such as lady beetles , green lacewing larvae, and parasitic wasps that also help to control aphids.
Whiteflies [cabbage Whiteflies] Over 1200 known species of whiteflies. These tiny, insects feed in large numbers on leaf undersides by sucking out plant juices. They secrete a sticky substance called honeydew that may cause the growth of a sooty black fungus [Image}, and also attracts other insect pests. Yellowing leaves are also symptomatic. White flies are visible to the eye and will swarm in large groups when the plant is shaken. See Whitefly Control Products
Cabbage Moth and Cabbage Butterflies
They lay their eggs on the underside of leaves. The larvae hatch from the eggs and then feed on the leaves and/or fruit. [Images-Moths] [Images Butterflies]
Alternaria leaf spot is a fungal disease caused by Alternaria dauci. It overwinters in diseased debris in the soil and it may be spread on or in contaminated seed ,or by the wind. The disease usually start on older leaf margins causing dark spots with yellow borders to develop. Spots on the leaf stems will elongate and kill the entire leaf. Infection most commonly occurs during the cooler portions of the growing season when the leaf moisture does not dissipate as quickly. [Image]
Black Rot / Black Leg -Black rot is caused by a bacteria , Black Leg is caused by fungus and can affect all vegetables in the crucifer family. Above-ground parts of the plant are primarily affected, and symptoms may vary depending on the type of plant, age of the plant and the environmental conditions. In general, yellow, V-shaped lesions appear along the tips of the leaves with the point of the V directed toward a vein. -There are no chemical controls available, so disease prevention is very important. The bacteria survives the winter on plant debris and on weeds, It also can survive in and on seeds from infected plants. It can remain alive on plant residue buried in the soil for up to two years. The disease is easily spread . High temperatures and humidity favor development of the disease.
Fusarium wilt - The first signs are drooping and yellowing of lower leaves on a single stem. Earliest symptoms may appear on only one side of the plant. Yellowing and wilting of the leaves occurs, and the plants may die. If the stem is cut , the water conductive plant tissues under the surface are sometimes discolored brown. Favored by soil temperatures around 80 F, a low soil pH, Fusarium wilt is more common in southern latitudes.
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The Sustainable Vegetable Garden: A Backyard Guide to Healthy Soil and Higher Yields
contains a wealth of information and tested advice, this problem-solving treasure gives gardeners every-thing they need to do battle with garden pests, diseases, and weeds—with safe, natural solutions. Combining a troubleshooting approach with encyclopedic coverage and drawing on the most up-to-date research on biological and non- or low-toxic controls
