01 · Diagnose
Identify a Crop Problem
Select a crop and symptoms to explore possible causes.
START DIAGNOSISField reference · 37 problems · Disease / Pest / Disorder
FieldFix — Vegetable Disease & Pest Library
Identify vegetable diseases, pests and disorders through symptom photos, diagnostic clues and practical crop-health guidance.
A professional photo-based reference for vegetable crops. Current records focus on tomato; more crops and problems are being added. Host crops are shown only where recorded.
Free public access
37 problems220 symptom photos10 field videos
FIG.01 — Crickets (Gryllidae)Verify below
How would you like to start?
02 · Browse
Browse the Problem Library
Explore vegetable diseases, pests and disorders by crop.
EXPLORE LIBRARY(01)
SELECT A CROP
Choose the vegetable crop you want to investigate.
(02)
COMPARE SYMPTOMS
Review symptom descriptions, photos and available field videos.
(03)
EXPLORE POSSIBLE CAUSES
Review matching diseases, pests or disorders and open their detailed guides.
Diagnostic results are possible matches based on the selected symptoms and should be confirmed through further investigation.
The product
FieldFix — Vegetable Disease & Pest Library
Every record is drawn straight from the field guide: what you see, the likely issue, first steps, listed active ingredients, organic options, and beneficial-mite compatibility.
37 records
Disease, Pest, Disorder — every entry in the guide.
220 field photos
Real symptom photography, multiple shots per record.
Symptom diagnosis
Tick what you see, get a shortlist to verify.
Beneficial-mite status
Phytoseiulus persimilis guidance on every card.
Important use note
Active ingredients below are examples, not universal prescriptions. Confirm the diagnosis; use only products registered for tomato and the target problem in your country; and follow the current label for dose, pre-harvest interval, worker protection, compatibility and re-entry. Rotate IRAC/FRAC modes of action. When symptoms are uncertain, obtain a laboratory or extension diagnosis. Integrated pest management (IPM)—sanitation, resistant varieties, irrigation management, monitoring and biological control—should be the first line of defense.
Sample pages
37 problems, photo-first
PestLeaf · Stem · Fruit
Crickets (Gryllidae)
Crops: Pepper
Irregular holes in pepper leaves, feeding damage on young seedlings, and chewing on stems near the soil surface. Severe infestations may kill young plants. Fruits touching the soil may also be damaged.
View diagnosis →3 photos
DiseaseLeaf · Fruit
Downy mildew
Crops: Cucumber
Downy mildew is a destructive foliar disease of cucumber caused by the oomycete Pseudoperonospora cubensis. It develops rapidly under humid conditions and can cause severe defoliation and yield losses. Leaf lesions: Angular, yellow to pale-green spots confined by leaf veins. Lesion development: Spots become brown and necrotic as the disease progresses. Underside sporulation: Gray to dark-purple downy growth may develop on the underside of leaves under humid conditions. Advanced infection: Lesions coalesce, causing extensive leaf necrosis, premature defoliation, and reduced fruit quality and yield.
View diagnosis →10 photos
PestFruit
False Codling Moth (Thaumatotibia leucotreta)
Crops: Pepper
Larvae bore into pepper fruits, causing entry holes, internal feeding damage, frass, fruit rot, and premature fruit drop. Infested fruits may appear nearly healthy externally.
View diagnosis →5 photos
DiseaseLeaf · Stem · Fruit
Early blight (Alternaria)
Crops: Tomato
Necrotic brown spots with concentric “target” rings on older leaves; yellow halo; may reach stems and fruit.
View diagnosis →2 photos
DiseaseLeaf · Fruit · Whole plant
Cucumber Green Mottle Mosaic Virus (CGMMV)
Crops: Cucumber
Light and dark green mosaic patterns on leaves, leaf distortion, stunted growth, and mottling or deformation of fruits. Symptoms vary by crop and cultivar. Infected plants may show reduced yield and poor fruit quality.
View diagnosis →6 photos
PestLeaf · Fruit · Whole plant
Broad Mite (Polyphagotarsonemus latus)
Crops: Pepper
Distorted, curled, thickened young leaves; shortened internodes; stunted plant growth; deformed flowers and scarred fruits.
View diagnosis →4 photos