North Carolina State University

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Strawberry Diagnostic Key

Integrated Pest Management

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Sodium Toxicity details

Sodium Toxicity

Characteristics:

Type: Nutrition
Leaf Condition: Marginal necrosis, Complete necrosis
Leaf Location: Mature
Roots: Stunted
Plant Size: Stunted

Southern Stem Blight details

Scientific Name(s): Sclerotium rolfsii

Southern Stem Blight

Characteristics:

Type: Disease
Leaf Condition: Complete necrosis
Leaf Location: Entire leaf, Young, Mature
Roots: Necrotic
Crown: Crown necrotic, Internal discoloration
Petioles Condition: Lesion, Death, Collapse
Field Distribution: Random
Prior Environmental: High temperature
Season: Post harvest
Cropping System: Annual plasticulture, Perennial matted row

Spider Mites details

Scientific Name(s): Tetranychus urticae, T. turkestani, T. cinnabarus

Characteristics:

Type: Arthropod (or insect)
Leaf Condition: Brittle, Webbing on leaves, Arthropods on old leaves
Leaf Color: Stipled, Complete chlorosis
Field Distribution: Localized
Season: Post transplant, Early spring, Pre harvest, Harvest
Cropping System: Annual plasticulture

Spittlebugs details

Scientific Name(s): Prosapia bicincta, Philaenus spumarius, and many other species

Characteristics:

Type: Arthropod (or insect)
Fruit Condition: White foamy spittle
Petioles Condition: White foamy spittle
Season: Harvest
Cropping System: Annual plasticulture, Perennial matted row

Spotted Wing Drosophila details

Scientific Name(s): Drosophila suzukii

Spotted Wing Drosophila

Characteristics:

Type: Arthropod (or insect)
Fruit Condition: Insect inside fruit, fruit sound
Field Distribution: Uniform
Season: Harvest
Cropping System: Annual plasticulture, Perennial matted row

Strawberry Clipper Weevil details

Scientific Name(s): Anthonomus signatus

Strawberry Clipper Weevil

Characteristics:

Type: Arthropod (or insect)
Petioles Condition: Clipped
Field Distribution: Edges
Season: Pre harvest
Cropping System: Annual plasticulture, Perennial matted row

Strawberry Crown Borer details

Scientific Name(s): Tyloderma fragariae

Strawberry Crown Borer

Characteristics:

Type: Arthropod (or insect)
Crown: Chewing or boring damage
Plant Size: Stunted
Field Distribution: Edges
Season: Pre harvest, Harvest, Post harvest
Cropping System: Perennial matted row

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This strawberry diagnostic key was developed with funding in part from the Strawberry Sustainability Initiative, the Walmart Foundation, University of Arkansas, Southern Region IPM Center, North Carolina State University Cooperative Extension Service and the North Carolina Strawberry Association.

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