Onion Thrip

Onion Thrip Description: Thrips gather in large numbers on onion leaves, causing wrinkled or ribbony shoots to emerge in place of the expected smooth ones. White or gray spotting, called silver top, may eventually cover the entire leaf, giving it a sickly appearance. Thrips are a primary pest of onion, reducing photosynthesis and yield by cutting leaf cells open to […]

Neck Rot (Onions)

Neck Rot (Onions) Description: This disease attacks living plants but is often not noticed until onions are being held in storage. Sunken, dried areas start appearing at the neck of the bulb and gradually move down through the entire bulb. Symptoms usually develop after bulbs have been in storage for a month or more. The fungus penetrates leaf tissue, but […]

Mite and Spider Mite – How to control

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 […]

Mexican Bean Beetle

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 […]

Mealybug – How to contrl

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 […]

Late Blight (Tomatoes)

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 […]

Japanese Beetle – How to control or kill

Japanese Beetle Description: Metallic green/copper adult grows to 1/2″ long. Larvae or grubs are grayish-white with brown head; fat body is 3/4″ long. Adults especially like beans and corn but will eat almost any plant, often skeletonizing the leaves. Larvae chew on roots of lawn grass, bean, beet, sweet corn, onion and tomato; except during cultivation, they are seldom noticed, […]

Iris Borer

Iris Borer Description: Eggs overwinter in stems of iris and other debris. After eggs hatch they must crawl to the base of the iris to bore into stems. During this migration they are susceptible to Grub-Away Nematodes. Infested leaves are yellow from the tip back, have notches on the edge; plants lose vigor; many fail to bloom. Solution: Grub-Away Nematodes […]

Halo Blight (Beans)

Halo Blight (Beans) Description: Symptoms of halo blight start as small watersoaked spots on leaves, which gradually turn dark brown. The spots remain small and become surrounded by a wide yellow-green halo. The spread and development of halo blight is favored by wet weather and plant injury from rain, hail, people or equipment. Halo blight develops best when temperatures are […]

Gypsy Moth – How to Control

Gypsy Moth Description: Larvae are gray caterpillars 2″ long, with long brown hair. They eat tree foliage of all kinds. Eggs hatch in late April or early May and larvae search for food immediately. At early stages, the damage to leaves is slight and is often overlooked, but the early stages are when these pests are most vulnerable to control […]