Skip Navigation
PIONEER.COM
Home / Corn & Soybean Scouting Calendar

Corn & Soybean Scouting Calendar

Download Scouting Guide
Road by cornfield - midseason - trees in background

Scouting Timeline


Select the crop stage for pest and disease information.

VE to V8 Corn Insects & Diseases

Seedcorn Maggot

Seedcorn Maggot

VE - V2
Read Article

Black cutworm

Black Cutworm

VE - V5
Read Article

Seedcorn Beetle

Seedcorn Beetle

VE - V2
Read Article

White Grub

White Grub

VE - V5
Read Article

Wireworm

Wireworm

VE - V3
Read Article

Corn Flea Beetle

Corn Flea Beetle

VE - V5
Watch Video


V1 to V5 Corn Insects & Diseases

Armyworm

Armyworm

V1 - V7
Read Article

Grape colaspis

Grape Colaspis

V2 - V6
Read Article

Corn Rootworm Larvae

Corn Rootworm Larvae

V2 - VT
Read Article

Hop Vine Borer

Hop Vine Borer

V1 - V5
Read Article

Brown Stink Bug

Brown Stink Bug

V2 - V6
Read Article

Stewarts Leaf Blight

Stewart’s Leaf Blight

V1 - VT
Read Article

Billbug

Billbug

V2 - V5
Read Article

Common stalk borer

Common Stalk Borer

V2 - V8
Read Article

Goss Wilt

Goss’s Wilt

V2 - R5
Watch Video


V6+ Corn Insects & Diseases

European Corn Borer

European Corn Borer

V6 - R6
Read Article

Corn Leaf Aphids

Corn Leaf Aphids

V8 - R1
Read Article

Fall Armyworm

Fall Armyworm

V7 - R1
Read Article

Gray Leaf Spot

Gray Leaf Spot

V7 - R3
Read Article

Southwestern Corn Borer

Southwestern Corn Borer

V7 - R6
Read Article

Northern Corn Leaf Blight

Northern Corn Leaf Blight

V7 - R3
Read Article

V9 to R6 Corn Insects & Diseases

Corn Rootworm Adults

Corn Rootworm Adults

V10 - R1
Read Article

Gibberella Stalk Rot

Gibberella Stalk Rot

V10 - R4
Read Article

Corn Earworm

Corn Earworm

R1 - R4
Read Article

Fusarium Ear Rot

Fusarium Ear Rot

R3 - R6
Read Article

Japanese Beetle

Japanese Beetle

V10 - R4
Read Article

Tar Spot

Tar Spot

V10 - R4
Read Article

Anthracnose Stalk Rot

Anthracnose Stalk Rot

R2 - R6
Read Article

Gibberella Ear Rot

Gibberella Ear Rot

R3 - R6
Read Article

Fusarium Stalk Rot

Fusarium Stalk Rot

V10 - R4
Read Article

Western Bean Cutworm

Western Bean Cutworm

VT - R2
Read Article

Diplodia Ear Rot

Diplodia Ear Rot

R2 - R6
Read Article

Soybeans - Vegetative Stages

Insects & Diseases - 0 - 1 Month After Planting

Bean Leaf Beetle

Bean Leaf Beetle

All season
Read Article

Phytophthora Root Rot

Phytophthora Root Rot

All season
Read Article

Two-spotted Spider Mite

Two-spotted Spider Mite

All season
Read Article

Bean Pod Mottle

Bean Pod Mottle (BPMV)

Planting – Pod Fill
Read Article

Soybeans - Vegetative Stages

Insects & Diseases - 1 - 2 Months After Planting

Soybean Cyst Nematode

Soybean Cyst Nematode

1-2 months after planting through growing season
Read Article

Rhizoctonia Root Rot

Rhizoctonia Root Rot

1-2 months after planting until beginning of bloom
Read Article

Soybeans - Vegetative Stages

Insects & Diseases - 2 Months to Max Height

Soybean Aphids

Soybean Aphid

2 months to max height – pod fill
Read Article

White Mold

White Mold

2 months to max height – pod fill
Read Article

Japanese Beetle

Japanese Beetle

2 months to max height – leaf drop
Read Article

Green Stink Bug

Green Stink Bug

2 months to max height – leaf drop
Read Article

Soybeans - Reproductive Stages

Bloom to Leaf Drop

Brown Stem Rot

Brown Stem Rot

Bloom – leaf drop
Read Article

Charcoal Rot

Charcoal Rot

Pod fill – leaf drop
Read Article

Sudden Death Syndrome

Sudden Death Syndrome

Bloom – leaf drop
Read Article

Red Crown Rot

Red Crown Rot

Bloom – leaf drop
Read Article

Read More - Corn & Soybean Growth Stages

Click the tabs above to view different corn and soybean pests by growth stage to begin scouting. Follow each link for in-depth agronomic information on scouting and management.

Get the Latest Insights in Your Inbox

Get the Latest Insights in Your Inbox

Stay connected to your Pioneer agronomist with our Walking Your Fields e-newsletter and other communications. It’s your go-to source for timely agronomic information to help add value to your farm management strategy.

Subscribe Now