Pythium Wilt (Lettuce) Description: Dark yellow-brown roots, stunting, yellow of outer leaves. Root system decline. Solution: Provide good drainage; raised beds are ideal. Sprinkle SoilGard over seed at time of sowing, before covering seed with soil. When starting seed indoors, mix SoilGard with potting soil before seed is sown.
Late Blight (Tomatoes) Description: Late blight can be devastating to fruits, stems and leaves when weather conditions are favorable (long periods of muggy weather with cool nights and moderately warm days). Affected plants look as if they were killed by frost. Both green and ripe fruits become corky brown on their surfaces and develop a texture resembling that of an […]
Rhizoctonia Root Rot (on Beans) Description: Primarily attacks seedlings and young plants. Reddish-brown spots appear on lower stems. Most infected plants die as seedlings. Solution: Shallow seeding depth and planting in thoroughly warm soil helps. Sprinkle SoilGardTM Microbial Fungicide over bean seed at time of sowing, before covering seed with soil.
Mealybug Description: Bodies up to 1/4″ long are covered with white powdery wax. Colonies look like small tufts of cotton along veins on underside of leaves and at base of leaf stems. They infest most houseplants, plus apple, grape, peach, pear trees. Infested fruits are disfigured and covered with dark mold. Mealybugs extract plant juices, causing dwarfing, wilting, and early […]
Mexican Bean Beetle Description: Bean beetle adults are yellow-brown, 1/4″ long, with 16 black spots; they are frequently mistaken for Lady beetles but Lady beetles have a varying number of spots. The larvae are yellow-orange, spined, 1/3″ long. Both adults and larvae prefer beans. They skeletonize leaves and can strip a plant to its stems quickly. Solution: If infestation is […]
Mite and Spider Mite Description: Mites are hardly visible to the eye, but their webbing is the telltale sign of infestation. They feed on most indoor plants, apple and peach trees, evergreens and strawberries, causing yellowing, first along the veins and then over the entire leaf surface. Fruit trees with severe mite damage will have small, poorly colored fruit and […]
Codling Moth Description: Adult moth has 1/2″ to 3/4″ wingspan. Back part of tips of front wings have large chocolate-brown patches; remainder is covered with wavy, light grey and brown lines. Larvae are white/pink; grow to 3/4″ long. The moths prefer apples, pears, crabapples, walnuts and peaches. Larvae bore straight into the center of the fruit to feed on the […]
Colorado Potato Beetle Description: Adult beetle has a yellow body with black stripes running downward. Red larva grows to 3/5″ long with rows of black spots along its sides. Favorite foods are potato, eggplant, pepper and tomato. Adults and larvae feed on leaves and stems, often stripping entire plants. Small garden plantings seem to be particularly vulnerable to damage. Solution: […]
Fusarium Wilt on Tomatoes Description: The first symptom is yellowing of older leaves, then bright yellowing from top to bottom of plant, often affecting only one branch of plant. Sometimes leaves droop and curve downward. Plants often wilt and die. Solution: Maintain soil pH at 6.5 to 7.0. Test soil pH; if it is too acid, use ground limestone to […]
Common Bacterial Blight (Beans) Description: During periods of warm, humid weather, bacterial blight can be especially harmful to pods. Overwintering occurs in infested plant debris. Solution: After harvest, thoroughly till crop residue into soil. Rotate crops. Spray Soap-Shield® Fungicidal Soap before disease normally appears. Continue applications as long as weather conditions are favorable to the disease.