Glassy-Winged Sharpshooter
Homalodisca vitripennis
Fungal & Bacterial Vectors High Risk 12-14 mm
📖 Description
The glassy-winged sharpshooter is one of the most significant agricultural pests due to its role as a vector for Xylella fastidiosa, the bacterium that causes Pierce’s disease in grapes. This large leafhopper feeds on xylem fluid and can transmit the bacterium between plants as it moves and feeds. The pest is native to the southeastern United States but has spread to California and other regions, where it threatens multi-billion dollar wine and grape industries.
⚠️ Symptoms to watch for
- Pierce's disease causing scorched, dried leaves,White excrement spots on foliage,Leaf wilting and marginal necrosis,Stunted growth and dieback,Reduced fruit quality and yield
🩹 Treatment
- Apply kaolin clay to deter feeding (organic),Release parasitic wasps (Gonatocerus spp.) (organic),Use neem oil as a feeding deterrent (organic),Apply systemic imidacloprid as soil drench (chemical),Spray with carbaryl-based insecticide (chemical)
🌿 Organic treatments
- Apply kaolin clay to deter feeding,Release parasitic wasps (Gonatocerus spp.),Use neem oil as a feeding deterrent
🧪 Chemical treatments
- Apply systemic imidacloprid as soil drench,Spray with carbaryl-based insecticide
🛡️ Prevention
- Remove alternative host plants near vineyards,Install insect screens on nursery stock,Monitor with yellow sticky traps,Use resistant grape rootstock varieties
🪴 Affected plants
- Grapes,Citrus,Almonds,Oleander,Peaches,Plumeria
🦋 Natural predators
- Parasitic Wasps,Green Lacewings,Spiders
🌱 Host plants
- Vitis vinifera,Citrus spp.,Prunus persica,Nerium oleander
🔄 Lifecycle
- Females lay eggs in groups of 3-28 beneath the epidermis of host plant leaves.
- Eggs hatch in 7-10 days, and nymphs develop through 5 instars over 60-90 days.
- Adults can live 2-4 months and produce multiple generations per year in warm climates.
- Overwintering adults seek shelter in citrus and other evergreen hosts.
📅 Season
- Spring to Fall (active year-round in warm climates)
🔎 Appearance
- Large, dark brown leafhopper with transparent wings and yellowish veins.
- Has a distinctive pointed head and large, prominent eyes.
- When at rest, wings are held tent-like over the body.
💥 Damage level
- High
🔁 Reproduction rate
- Moderate
🗺️ Geographic regions
- North America
- Central America
- Pacific Islands
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