Spraying Weigela

Spraying is important to the survival of your plants. To handle potential diseases and pests, reference the guidelines below to know what you should spray, and when you should use it.

NOTE: This is part 7 in a series of 8 articles. For a complete background on how to grow weigela, we recommend starting from the beginning.

Before you begin, read and follow all instructions on labels.

General Guidelines

Natural Control

  • Serenade® Garden Disease Control for powdery mildew and leaf spot.

At the First Sign of:

  • GardenTech® Sevin® Concentrate Bug Killer for aphids, mealy bugs, white flies, thrips, Japanese beetles and more.

By Shrub

Flowering/Ornamental Shrubs

New spring growth:

  • Monterey Liquid Copper Fungicide for leaf spot.

New spring growth:

  • Monterey Liquid Copper Fungicide for black spot, downy mildew, gray mold, leaf spots, powdery mildew and rust.

Ornamental Shrubs

Green tip through delayed dormant stages:

  • Monterey Horticultural Oil for scale insects, certain aphids, gall, whitefly larvae, mealy bugs and adelgids.

Growing season:

  • Monterey Horticultural Oil for scale insects, red spider mites, mealy bugs and whitefly larvae.

At first sign of insects:

  • Natural Guard® Caterpillar Killer Spray w/BT for bagworms, tent caterpillars and fall webworms.

Euonymus, Lilac

At first sign of insects:

  • GardenTech® Sevin® Concentrate Bug Killer for aphids, bagworms, exposed thrips, fall cankerworms, inchworms, leaf miners, leaf rollers, locust, mealy bugs, spider mites, whiteflies, gypsy moth, tent caterpillar and Japanese beetles.

Spring bud break:

  • Ferti-lome® Broad Spectrum Landscape & Garden Fungicide for anthracnose.

Nannyberry, Lilac

At first sign of insects:

  • GardenTech® Sevin® Concentrate Bug Killer for aphids, armyworms, bagworms, cutworms, exposed thrips, fall cankerworms, fall webworms, fungus gnats, inchworms, Japanese Rotenone beetles, leaf miners, leaf rollers, locusts, mealy bugs, scale crawlers, spring cankerworms, spider mites, whiteflies, psyllids and scale insects.

Privet

Prolonged wet conditions:

  • Ferti-lome® Broad Spectrum Landscape & Garden Fungicide for cercospora leaf spot.

Viburnum

Mid-summer:

  • Ferti-lome® Broad Spectrum Landscape & Garden Fungicide for powdery mildew.

Hydrangea (foliage only)

Early propagation:

  • Ferti-lome® Broad Spectrum Landscape & Garden Fungicide for cercospora, septoria leaf spot and rust.

Lily

Pre-bloom:

  • Ferti-lome® Broad Spectrum Landscape & Garden Fungicide for botrytis gray mold (foliar phase) and phytophthora blight.

Hardy Shrub (Thrives with minimal care such as lilac, viburnum, privet, spirea, etc.)

Growing season:
  • Monterey Horticultural Oil for scale insects, European red spider mites, mealy bugs and whitefly larvae.

Latest Articles & Videos

Article imageArticle image Winter Preparation for Fig Trees: Cutting Back and Mulching Fig trees are beloved for their sweet fruit, but they can be sensitive to freezing temperatures, especially in colder climates. Proper winter preparation ensures the tree survives the harsh weather and grows back vigorously in the spring. One effective method involves cutting back the branches and insulating the tree base with mulch. Here's a step-by-step guide:
Planting in pots indoorsPlanting in pots indoors Indoor Gardening with Purpose: Fresh Ingredients Year-Round Imagine walking into your home and being greeted by the vibrant greenery of your very own indoor garden. With aromatic herbs, fresh ingredients, and even small fruiting plants, indoor gardening can turn any space into a productive and inviting haven. Whether you’re looking to save on grocery costs, enjoy a steady supply of organic produce, or simply find joy in gardening throughout the year, growing indoors is a rewarding way to make the most of your space.
Article imageArticle image House Plants: Benefits, Top Picks, and Care Tips House plants aren’t just for looks—they’re living companions that enhance our homes! Whether you're a plant mom or plant dad who wants to bring nature inside, house plants offer health benefits, create calming atmospheres, and add charm to every room. Let’s dive into the many ways house plants can enhance your well-being and explore the best plant options for your lighting conditions.
Rooted in ServiceRooted in Service The Stark Bro's Story of Leadership in Gardening Excellence At Stark Bro’s, we’re proud to be veteran-owned and veteran-operated, bringing the values of service and dedication directly into the heart of gardening. With over 200 years of history, we know that the strongest roots grow from a commitment to quality, integrity, and community. Our leadership upholds these principles, guiding every plant we nurture and every customer we serve. Here, we don’t just grow fruit trees; we grow relationships and legacy.

Tools & Supplies for Weigela