Yellowjacket Identification, Facts, and Control Measures

Macro shot of a yellowjacket wasp looking at the camera.

Although yellowjackets consume a large volume of agricultural pests, they are very aggressive when protecting their nests and cause most of the stinging deaths in the US. Read on to learn how to manage these inhospitable guests on your property.

How to Identify and Control Turnip Black Rot

Close up of a turnip leave showing splotchy areas indicative ofbBlack rot (Xanthomonas campestris)

Black rot of turnips caused by Xanthomonas campestris pv. campestris is a devastating bacterial disease that is easily spread. Since it is very difficult to control, preventing it from becoming established is your best bet. Read on to learn how to keep your turnips from becoming infected with black rot.

How to Identify and Control Cotton Root Rot in Fruit and Nut Trees

Dead fruit trees killed from cotton root rot (Phymatotrichum omnivorum) in an orchard setting.

Cotton root rot infects more than 2,300 plant species in the southwest, including apples, peaches, almonds, and most other fruit and nut trees. While the disease is usually fatal, there are some steps you can take that might save your tree. Read on at Gardener’s Paths to find what to do if your tree has this disease.

How to Identify and Prevent White Rust on Turnip

White rust (Albugo candida) on Turnips. Close up.

White rust infects cruciferous plants, including turnips, around the world. It produces white pustules on the leaves and can distort the flower heads. However, this organism does not kill the plants. Read on to learn how to prevent white rust using cultural control methods.

What’s the Difference Between Tree Burr Knots (Burl) and Crown Galls?

Close up of an old tree limb with burrs or burl growth.

Do your shade, nut, or fruit tree limbs and trunks have unsightly growths on them? If so, they are probably burr knots or crown gall. One is due to roots growing on the stems, while the other is a bacterial infection. Prevention is the best bet for these disorders. Learn how to prevent and, in some cases, control them.

How to Identify and Control Walnut Husk Flies

Side profile of the walnut husk fly (Rhagoletis completa) on a gray background.

Walnut husk flies are damaging pests, particularly in California and Washington State. The flies pupate in the ground for 1-2 years and spend their larval stage hidden inside the husks. However, by monitoring the adults, you will know when to treat these pests before they lay their eggs. Read on to learn how to control these voracious insects.

How to Identify and Prevent Southern Blight on Apple Trees

Since southern blight can infect hundreds of plants and live in the soil for years, it is a severe threat to apple and crabapple trees. Especially if you live in the south, learn how to prevent this disease and keep it at bay with rigorous sanitation.

How to Identify and Control Apple Black Rot and Frogeye Leaf Spot

An apple leaf with frogeye leaf spots. Close up.

The complex of apple black rot cankers, black rot on fruit, and frogeye leaf spot can cause serious losses on apples and crabapples. However, you can minimize the damage by removing dead tissue and mummified fruit. Read on to learn the details of controlling these diseases.

What is “Damping Off” and How Do You Prevent It?

Close up of seedlings dying from damping off.

“Damping off” is a phrase that is enough to strike fear into the heart of any grower. A must-read for anyone wanting to grow their own seedlings, learn everything you need to know about this devastating disease and how you can prevent this pathogen from pestering your seedlings, check out our guide now!

Ground and Wood Nesting Bees: Learn to Identify Common Backyard Species

Macro shot of a North American bumblebee feeding on the nectar of the blossom on a ribes plant.

Do you ever watch your backyard bees? Busy collecting pollen and sipping nectar, these benign little creatures pollinate our crops and flowers as they peacefully fly about. But when they nest nearby, it’s a smart idea to know how they’ll behave around your home. Join us now to learn about some common native species.

How to Identify and Control Caraway Pests and Diseases

A field with caraway plants in bloom.

If you’re growing caraway in your herb garden this year, you may have to deal with insect pests or diseases that are common to this plant. Read on to learn about preventative measures, how to recognize signs of trouble, and methods for addressing an infestation or infection, in this concise guide.

How to Identify, Prevent, and Treat Gummosis on Fruit Trees

Close up of gummosis on an apricot tree trunk.

Is your apricot, peach, plum, cherry, or apple tree oozing a lot of gum? If so, it may be infected with the fungus Leucostoma that causes apricot gummosis and cankers. This fungus only infects stressed trees and enters through wounds, so you may be able to avoid it entirely. Read more about how to prevent this disease and ways to treat it.

How to Prevent and Control Armillaria Root Rot on Apricots

Mature Armillaria fungi growing at the base of a tree.

The fungus Armillaria attacks trees and shrubs in a wide variety of soils around the world. It can cause a fatal root rot on all fruit trees, including apricots. Read on to learn how to prevent this tree killer from infecting your apricot tree.

How to Identify and Prevent Crown Gall on Apple

A large crown gall growing on the trunk of residential apple tree.

Crown gall bacteria can infect apples, crabapples, peaches, pears, nectarines, apricots, and plums throughout the world – causing unsightly growths that can girdle the trees and kill them. Read on to find out how to prevent this soil-borne disease from attacking your fruit trees.

How to Identify and Control Bot Rot on Apple Trees

Three apples in various stages of rot from Botryosphaeria dothidea.

Bot rot (white rot) can result in cankers on the limbs and twigs and fruit rot that may not show until your apples or crabapples rot after storage. Fortunately, this fungus only infects trees that are stressed. Read on to learn how to prevent infections from occurring.

How to Deal with Common Sago Palm Pests and Diseases

Closeup closely cropped horizontal image of green king sago fronds with small white flecks, evidence of a scale infestation.

Sago palm makes a sturdy addition to the garden in warm climates. But what should you do if pests and disease plague your cycads? Whether you’re dealing with scale, rot, yellowing, or mold, a nutrient deficiency, or a simple case of overwatering, we’re here to help with our pro tips! Read more now on Gardener’s Path.

What Is Citrus Greening Disease?

An orange with HLB growing on a tree, with grass and a cloudy sky, and other trees in soft focus in the background.

California is trying to avoid Florida’s fate of the destruction of its citrus industry due to citrus greening. Homeowners are the focus of preventing the spread of this lethal disease because all of the infected trees in California have been residential trees. Read on to discover what you can do to protect your tree.