Seasonal Forecast
Predicted pest and disease risk based on historical data, seasonal trends, and current reports. Plan your plant health strategy ahead of time.
Currently: Fall 2026
Get your local forecast
See month-by-month pest and disease activity for your state — what to watch for now and what's coming up.
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3682
Active Threats
6
Critical Severity
14
High Severity
4
Threat Categories
Season Risk Overview
Spring
High RiskTop Threats
- Fungal leaf diseases emerge
- Aphid & scale insect resurgence
- Root rot from wet soils
- Anthracnose on new foliage
Summer
High RiskTop Threats
- Bark beetles & borers peak
- Japanese beetle defoliation
- Bacterial leaf scorch spreads
- Invasive plant growth surges
Current Season
Fall
Moderate RiskTop Threats
- Late-season fungal infections
- Sudden oak death sporulation
- Spotted lanternfly egg-laying
- Canker diseases on dormant wood
Winter
Low RiskTop Threats
- Overwintering pest monitoring
- Ice damage & branch breakage
- Vole & rodent bark damage
- Planning for spring treatments
Top Threats This Season
Ailments ranked by the number of states currently affected
| # | Threat | Type | Severity | States Affected |
|---|---|---|---|---|
| 1 | Asian Longhorned Beetle Damages hardwood trees by tunneling deep into trunks and branches | Insect | MODERATE | 50states |
| 2 | Powdery Mildew | Fungus | LOW | 49states |
| 3 | Dutch Elm Disease | Disease | CRITICAL | 45states |
| 4 | Asian Lady Beetle | Insect | MODERATE | 41states |
| 5 | Anthracnose | Fungus | MODERATE | 38states |
| 6 | Leaf Spot Diseases | Fungus | LOW | 38states |
| 7 | Emerald Ash Borer | Insect | MODERATE | 36states |
| 8 | Armillaria Root Rot | Fungus | HIGH | 36states |
| 9 | Large Milkweed Bug | Insect | MODERATE | 35states |
| 10 | Japanese Beetle | Insect | MODERATE | 35states |
Monthly Activity Timeline
Typical pest and disease activity patterns throughout the year
| Category | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Insects | ||||||||||||
| Diseases | ||||||||||||
| Fungal | ||||||||||||
| Invasive Plants |
Swipe to see all months
Activity Level:NoneLowMediumHigh
Regional Risk Details
Click on any state on the interactive map to see specific pest and disease threats for that region, including active alerts and treatment recommendations.
Explore the Map