Helga George, PhD 
Asparagus rust is a highly complicated fungal disease with four different stages that can invade your plants without showing symptoms until it is too late. Cultivars bred to be resistant to this pathogen often lose effectiveness over time. Read on to learn what symptoms to look for and how to treat your infected plants.
Can ingesting dracaena be harmful to cats and dogs? You will need to monitor for adverse symptoms and call the vet if your pet samples this type of houseplant, a common pick among indoor gardeners. Read on to learn more about the toxicity of dracaena to household pets, symptoms to watch out for, and care tips.
Hellebores provide color in the late winter to early spring garden with their delightful cup-shaped flowers. While they are typically trouble-free, these robust plants can occasionally suffer from infestations. Learn how to identify and control the most common hellebore pests in this guide. Read more now.
Allium leaf miners are devastating pests of garlic, onions, shallots, chives, and leeks – and can destroy an entire crop. These invasive pests are spreading rapidly throughout the mid-Atlantic and northeastern regions of the US. Learn how to identify, prevent, and control allium leaf miners in this guide. Read more now.
Hellebores provide color in the late winter to early spring landscape and are typically trouble-free. However, there are some diseases that may infect your plants, caused by fungi, water molds, and a particularly virulent virus. Learn how to identify and treat common hellebore diseases in this guide. Read more now.
Agapanthus are easygoing, robust plants that don’t typically succumb to disease. However, in some cases they may become infected by fungi and water molds, generally as a result of poor growing conditions. Learn how to diagnose and treat the most common agapanthus diseases in this guide. Read more now.
Root-knot nematodes are a threat to plants and crops worldwide. Infestations can be difficult to diagnose and control, but you can prevent the spread of the nematodes by implementing a number of cultural and organic measures. Learn how to identify, manage, and prevent a root-knot nematode infestation. Read more now.
If you’re growing hellebores and they are showing signs of disease, you’ll need to rule out hellebore black death. This incurable viral infection is characterized by black streaks on the leaves, stems, and flower bracts. Learn more about this devastating disease and how to identify it in this guide. Read more now.
Peace lilies are typically easygoing houseplants, but occasionally they may come down with a disease. Most common peace lily diseases occur in nurseries, but certain root rots can strike houseplants in loving homes. Learn more about how to protect your peace lilies from disease now in this guide. Read more now.
Amaryllis bulbs can rot for a variety of reasons, like fungal infections or insect infestation, but some can be avoided. Are you doing everything you can to ensure beautiful blooms, and growing your decorative holiday plants in the best possible conditions? Read our top tips now to ensure healthy bulbs, indoors or out.
Whether grown in a pot or in your garden, amaryllis bulbs can be attacked by the pernicious disease known as southern blight. This fungus is extremely difficult to control, so preventing it is of the utmost importance. Read on to learn how to diagnose southern blight and prevent it from attacking your plants.
Cats that have eaten peace lilies may show symptoms ranging from sudden yowling to an upset stomach. If your cat is pawing at its face after eating your houseplant, it’s important to know what to do! While less harmful than true lilies, the toxicity of this plant is not to be taken lightly. Read on to learn more.
Pumpkin plants are highly susceptible to powdery mildew, a fungal infection can affect the quality of the fruit. In severe cases, it can destroy your whole crop. However, there are treatments available and preventative measures you can take. Learn how to prevent and treat powdery mildew on your pumpkins in this guide.
The iconic flowers of the bird of paradise plant have made it a popular landscape plant in regions with warm climates. And despite their regal appearance, these plants are relatively easy to care for, and rarely succumb to pests or diseases. Read on to learn how to grow birds of paradise in your garden in Zones 9-12.
Sooty mold is an unsightly condition that occurs when sap-sucking insects leave behind a sugary substance on the leaves or stems of your plants and dark-colored fungi colonize the area to feed on the sugars. The is often merely cosmetic but severe cases can damage or kill your plants. Learn more about sooty mold now.
Powdery mildew is a chronic problem in temperate climates throughout the world. Fortunately, it does not usually kill its hosts, but it can debilitate them. You can treat this fungal infection with a range of certified organic products and homemade treatments. Read more now to learn how to use these remedies in your garden.
Not sure what’s plaguing your tomatoes? Our roundup of common tomato plant diseases can help you to identify, treat, and prevent a variety of fungal, bacterial, and viral ailments, as well as other issues that may arise. From Alternaria stem canker to Verticillium wilt, we’ve got you covered. Read more now.
Do your cabbage plants appear diseased? An array of organisms can afflict cabbage plants, ranging in severity from powdery mildew, which generally does not kill its hosts, to bacterial soft rot, which totally decimates them. Read on to figure out which pathogen has infected your cabbages and what you can do about it.