Ornamental Garden Calendar For August

Trees and Shrubs Continue to watch your lilacs, flowering crabapples, ninebark and currant bushes for signs of powdery mildew and continue your protective treatments. Maintain even soil moisture and try to avoid overhead watering.  Gypsy moths are still in flight and laying their eggs. Pheromone traps may be used to trap some of the moths. Seeking out and destroy their egg masses. Egg clusters are usually … Continue reading Ornamental Garden Calendar For August

Powdery Mildew Verses Downy Mildew

Two common diseases in both vegetable gardens and ornamental gardens are powdery mildew and downy mildew. While the two diseases have many similarities the pathogen is different, symptoms are expressed differently, and each flourishes in different types of environmental conditions. Learning to prevent and recognize the symptoms of each disease is key to managing these destructive diseases. Powdery Mildew Powdery mildew is a fungal disease … Continue reading Powdery Mildew Verses Downy Mildew

Japanese Knotweed

Japanese Knotweed (Reynoutria japonica), formerly Fallopia Japonica, is one of the most invasive weeds in the world. It produces extensive and powerful networks of rhizomes below the soil surface, so powerful that they can damage foundations and building structures, not to mention choke out other vegetation. The rhizomes burrow down up to 3 m (10ft.) in depth and span between 2 to 7 m (7-23 … Continue reading Japanese Knotweed

Ornamental Garden Calendar For July

Trees and Shrubs July traditionally is a drier month and a good time to prune evergreens like boxwood. Continue to watch your lilacs, flowering crabapples, ninebark and currant bushes for signs of powdery mildew. If it has been a problem in past spray with a solution of 1 Tablespoon of baking soda and 1 Tablespoon of horticultural oil mixed in 1 gallon of water or diluted … Continue reading Ornamental Garden Calendar For July

Lily Beetles

Lily Beetles (Lilioceris lilii) are a damaging pest insect for lily (Lilium spp.) growers. The pest chews on the leaves, flowers and stem leaving them looking ragged. If the pest numbers are high enough complete defoliation can occur. Early detection and vigilance are key to managing this pest naturally. Damage to Plants Both the larvae and the adults feed on mainly Asiatic lilies and fritillaries. … Continue reading Lily Beetles

Designing a Drought Tolerant Garden

Water conservation is a hot topic these days. Water shortages have caused many municipalities to impose watering restrictions (at least during heat waves) and rising water costs have motivated many home owners and municipalities to establish more drought tolerant gardens and landscapes. For those living rural or on well water, plants that can survive mostly on rainfall are essential. Following are some photos of drought … Continue reading Designing a Drought Tolerant Garden

Four-lined Plant Bug

Four-lined Plant Bugs (Poecilocapsus lineatus) are small and fairly attractive insects, but they are capable of quickly creating extensive damage to many herbs and ornamental plants in the garden. This is largely due to the powerful digestive enzymes contained in their saliva, which is injected into the plant tissue while they are feeding. Most of the damage occurs to the newest growth, on the tips … Continue reading Four-lined Plant Bug

Cut Worms in Home Gardens

Cutworms are a destructive pest insect of a wide variety of plant material. Many home gardeners have encountered them in the vegetable garden, where they chew through the stems of their seedlings, cutting them off near the soil line. There are hundreds of species of cutworms and appearances can vary, as well as habitat, food preferences and life cycle. There are however several general characteristics, … Continue reading Cut Worms in Home Gardens

Creeping Red Fescue For Shady Turf Areas

Growing turf grass in shady areas under and around large trees is certainly challenging. Especially trees like Maples that root close to the surface and drink up a lot of water all season long. A good turf choice in these areas is Creeping Red Fescue (Festuca rubra). Creeping Red Fescue prefers to dry out a bit between watering, requires less fertilizer, has a high tolerance … Continue reading Creeping Red Fescue For Shady Turf Areas

Ornamental Garden Calendar for May

May is one of the busiest and exciting times in the garden. The days are getting warmer and longer. Plants are quickly filling out, weeds are establishing and insects are buzzing all around. The trees are breaking out in leaf and spring flowering trees and shrubs are putting on their show. Mid May is also when we here in southern Ontario typically begin planting out … Continue reading Ornamental Garden Calendar for May

Slugs and Snails in the Ornamental Garden

Most people are familiar with these slimy pests, that cause extensive damage to gardens, both ornamental and food. Slugs and snails while thought of as insects to most gardeners, are actually invertebrate animals known as Molluscs or mollusks (along with oysters, clams and squid). They have been around for about 500 million years (BYJU’S, (n.d.)) with about 85,000 known species (Wikipedia, (rev.  9 April 2022)). … Continue reading Slugs and Snails in the Ornamental Garden

Willow Leaf Gall Sawfly

What Are Galls? Galls are unusual growths or deformities of plant tissue caused by an organism; be it insect, nematodes, fungi, bacteria or viruses. The presence of these organisms initiates an increased production of normal plant growth hormones and these plant hormones cause localized plant growth. The gall-making organism feeds inside the gall. The appearance of the gall is unique to the gall maker and … Continue reading Willow Leaf Gall Sawfly

Spongy Moth aka. Gypsy Moth

The spongy moth (Lymantria dispar), is an invasive and highly destructive pest. When their numbers are high the larvae can completely defoliate trees, even forests. Formerly known as the gypsy moth, it was renamed by The Entomological Society of America in Feb. 2022. This species has a few sub-species including: Lymantria dispar dispar, Lymantria dispar asiatica, Lymantria dispar japonica, Lymantria umbrosa, Lymantria postalba and Lymantria albescens. They are often … Continue reading Spongy Moth aka. Gypsy Moth

Imported Willow Leaf Beetle

The Imported Willow Leaf Beetle (Plagiodera versicolora) is a small metallic-blue-green beetle with an insatiable appetite for willow and poplar trees. Native to Europe, the beetle was introduced to North America in 1915 and is predominantly found in the eastern U.S. and south/eastern Canada. Identification and Damage  Adults: beetles are small, about 4 or 5 mm long ( 1/8″), metallic blue-green in colour, with an … Continue reading Imported Willow Leaf Beetle