Type: Physiological
Leaf Condition: Tip burn, Marginal necrosis, Interveinal necrosis, Complete necrosis, Stunted
Leaf Color: Marginal chlorosis, Interveinal chlorosis, Complete chlorosis
Leaf Location: Entire leaf, Upper surface, Underside, Edge, Young, Mature
Roots: Stunted, Necrotic
Crown: Crown necrotic, Internal discoloration
Petioles Condition: Death
Plant Size: Stunted
Field Distribution: Uniform, Low areas, Localized
Prior Environmental: Rain
Season: Post transplant
Cropping System: Annual plasticulture

Problem

Fumigation injury

A poorly developed strawberry plant with dead outer leaves

Stunted plug plant 6 weeks after transplanting in wet soil.

Rocco D Schiavone

Very small strawberry plant with yellow leaves

Stunted strawberry pant with chlorotic leaves 12 weeks after planting.

Rocco D Schiavone

Section of small strawberry plants with normal plants on ends

Several stunted plants where fumigation rig stopped while fumigant being applied.

Rocco D Schiavone

Symptoms

Plant death shortly after planting, plant stunting, plant yellowing.

Additional Information

Damage can vary from death within days of planting to only slight stunting. Cool moist conditions do not favor fumigant dissipation.

Diagnostic Tips

Damage may be more prevalent in wetter areas and heavier soils. During very wet years injury may be through entire field. Secondary infection on affected tissue may be present. Small areas of affected plants will be present where fumigation rig stops prior to turning off fumigant.

Corrective Measures

May be able to replant if problem is discovered shortly after planting and fumigant has dissipated. Punch holes 24 hours prior to plating if fumigant residue is detected to allow fumigant to escape. Plant a few test plants several days prior to planting entire field if in doubt.

Management

Apply fumigant at proper rate. Allow extra time between application and planting if conditions are cool and wet. Fumigate earlier than minimal plant back date to allow for poor environmental conditions.