Powdery Mildew (Roses)

Powdery Mildew (Roses) Description: Powdery mildew and black spot are the “one-two punch” on roses. Powdery mildew is a problem in all parts of the U.S. Powdery mildew usually first appears on new growth, in periods of warm, dry days followed by cool, damp nights. The new leaves may become curled or twisted, and the shoots will look badly deformed. […]

Potato Leafhopper

Potato Leafhopper Description: These small, light green, triangle-shaped insects feed on potatoes, eggplant, vine crops, beans, rhubarb and peanuts. Hopper-burn by potato leafhopper causes 80% of insect damage on potatoes in the eastern U.S. Yield reduction can be drastic; eventually the plant dies. Solution: Super-Light Insect Barriers provide a good shield. Thorough spraying underneath leaves with Rotenone/Copper Combo or PyolaTM […]

Plum Curculio

Plum Curculio Description: Adult beetle, black or brownish black, is about 1/4″ long, very hard, and has a beak 1/4 as long as its body. They prefer apples and stone fruits (peach, plum, etc.). Adults overwinter in the trash beneath trees, in fence rows, or in wooded areas. In spring they begin appearing at late bloom. Larvae bore to the […]

Pear Scab – How to control

Pear Scab Description: Scab first appears on the bottom and later on the side of the fruit. Infected fruit often become misshapen. Scab spores develop during the winter, in infected leaves on the ground. Infection begins at the green-tip stage of flower bud development. Infection is highest when blossoms are open, but continues for about 6-9 weeks. Solution: Spray Soap-Shield® […]

Peach Leaf Curl – How to control

Peach Leaf Curl Description: : Leaves become thickened and curled or crinkled, and turn yellowish or reddish. Later, diseased leaves and misshapen fruit fall off tree. Solution: Spray with Soap-Shield® Fungicidal Soap, ensuring that all surfaces are thoroughly sprayed. Apply as a dormant spray (after leaves have fallen) in late fall. Alternatively, Bordeaux Mixture may be used after leaves drop […]

Anthracnose (Tomatoes)

Anthracnose (Tomatoes) Description: Appears on ripe fruit, producing small, round, sunken spots. These spots grow larger, and soon the whole fruit is affected and develops a water rot. Solution: Use Soap-Shield® Fungicidal Soap or Copper Dust starting after setting out plants, then every 7-10 days. Apply more frequently if disease is increasing rapidly. Reapply after rain. Weed Barrier Mats also […]

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 […]