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Strawberry Diagnostic Key

Integrated Pest Management

83

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  • Disorder Type?
  • Leaf Condition?
  • Leaf Color?
  • Leaf Location?
  • Fruit Condition?
  • Fruit Size?
  • Fruit Texture?
  • Fruit Color?
  • Roots?
  • Crown?
  • Petioles Condition?
  • Petioles Color?
  • Plant Size?
  • Flower Condition?
  • Field Distribution?
  • Prior Environmental?
  • Season?
  • Cropping System?
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Alternaria black spot details

Scientific Name(s)
Alternaria alternata
Alternaria black spot

Characteristics:

Type
Disease
Fruit Condition
Deformed, Lesion
Season
Harvest

Angular Leafspot details

Scientific Name(s)
Xanthomonas fragariae
Angular Leafspot

Characteristics:

Type
Disease
Leaf Condition
Torn or holes
Leaf Location
Entire leaf, Underside, Young, Mature
Petioles Condition
Lesion
Field Distribution
Uniform, Random, Localized
Prior Environmental
Rain, Thunderstorm, Temp. below 15°
Season
Post transplant, Early spring
Cropping System
Annual plasticulture, Perennial matted row

Anthracnose Crown Rot details

Scientific Name(s)
Colletotrichum gloeosporioides
Anthracnose Crown Rot

Characteristics:

Type
Disease
Leaf Condition
Complete necrosis, Stunted
Leaf Location
Entire leaf
Crown
Crown necrotic, Internal discoloration
Petioles Condition
Lesion, Death, Collapse
Field Distribution
Random
Prior Environmental
High temperature, Temp. between 20° and 32°
Season
Post transplant, Early spring, Pre harvest, Harvest
Cropping System
Annual plasticulture, Perennial matted row

Anthracnose Fruit Rot details

Scientific Name(s)
Colletotrichum acutatum
Anthracnose Fruit Rot

Characteristics:

Type
Disease
Leaf Location
Young
Fruit Condition
Lesion
Fruit Texture
Soft
Roots
Necrotic
Petioles Condition
Lesion, Death, Collapse
Plant Size
Stunted
Flower Condition
Necrotic
Field Distribution
Random, Localized
Prior Environmental
Rain, Thunderstorm, High temperature, Temp. between 20° and 32°
Season
Post transplant, Pre harvest, Harvest
Cropping System
Annual plasticulture, Perennial matted row

Aphids details

Scientific Name(s)
Myzus persicae, Aphis gossypii, Macrosiphum euphorbiae, Chaetosiphon fragaefolii, C. minor
Aphids

Characteristics:

Type
Arthropod (or insect)
Leaf Condition
Arthropods on young leaves
Field Distribution
Localized
Season
Early spring, Pre harvest, Harvest
Cropping System
Annual plasticulture, Perennial matted row

Black Root Rot details

Scientific Name(s)
Rhizoctonia fragariae, Pythium irregulare, Fusarium spp., Black Root Rot complex
Black Root Rot

Characteristics:

Type
Disease
Leaf Condition
Stunted
Roots
Stunted, Necrotic
Plant Size
Stunted
Field Distribution
Random, Low areas
Prior Environmental
Temp. between 20° and 32°
Season
Post transplant, Early spring, Pre harvest, Harvest
Cropping System
Annual plasticulture, Perennial matted row

Boron Deficiency details

Boron Deficiency

Characteristics:

Type
Nutrition
Leaf Condition
White netted spots, Tip burn, Distorted, Marginal necrosis, Stunted
Leaf Color
Marginal chlorosis, Interveinal chlorosis
Leaf Location
Young
Fruit Condition
Deformed
Fruit Size
Small
Fruit Texture
Hard
Roots
Stunted
Plant Size
Stunted
Flower Condition
Distorted
Field Distribution
Random
Season
Pre harvest, Harvest

Boron Toxicity details

Boron Toxicity

Characteristics:

Type
Nutrition
Leaf Condition
Marginal necrosis, Complete necrosis
Leaf Location
Mature
Roots
Stunted
Plant Size
Stunted
Season
Early spring, Pre harvest, Harvest

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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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