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Vegetables: Lettuce

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Image Subject Name Scientific Name Description
5495126 romaine lettuce Lactuca sativa var. longifolia romaine lettuce production, Lactuca sativa var. longifolia
5495127 romaine lettuce Lactuca sativa var. longifolia Romaine lettuce plants, Lactuca sativa var. longifolia
5495128 romaine lettuce Lactuca sativa var. longifolia Romaine lettuce plants, Lactuca sativa var. longifolia
5495130 romaine lettuce Lactuca sativa var. longifolia Romaine lettuce plant, Lactuca sativa var. longifolia
1572578 Lettuce Chlorosis Virus Crinivirus LCV Symptoms of lettuce chlorosis virus on head lettuce.  Note the chlorosis on the second plant from left. January 1997
1572577 Lettuce Chlorosis Virus Crinivirus LCV Symptoms of lettuce chlorosis virus on head lettuce. January 1997
1571984 Mirafiori Lettuce Big-vein Virus Ophiovirus MiLBVV Enlarged main veins of lettuce leaf caused by LBVaV. Symptoms are easily detected when leaves are backlit by sun. January 1996
1571965 herbicides (general) Herbicide drift into lettuce crop is evidenced by damage to weeds (prickly lettuce?) at the edge of the field. See 1571966-68 for symptoms on lettuce. February 1996
1572000 abiotic stresses (general) Discoloration of the main stem in lettuce plant.  Cause not determined beyond abiotic stress. March 1996
1572001 abiotic stresses (general) Discoloration of the main stem in lettuce plant.  Cause not determined beyond abiotic stress. March 1996
1571988 Mirafiori Lettuce Big-vein Virus Ophiovirus MiLBVV Enlarged main veins of lettuce leaf caused by LBVaV. Symptoms are easily detected when leaves are backlit by sun. January 1996
1571985 Mirafiori Lettuce Big-vein Virus Ophiovirus MiLBVV Enlarged main veins of lettuce leaf caused by LBVaV. Symptoms are easily detected when leaves are backlit by sun. January 1996
1571809 Lettuce Chlorosis Virus Crinivirus LCV Margin chlorosis, necrosis and thickening of lettuce foliage are symptoms caused by LCV. December 1995
1571772 lettuce Lactuca sativa Lettuce growers inspect the features of a head lettuce plant to determine its suitability for production and the marketplace. January 1996.
1571744 Sclerotinia rot Sclerotinia sclerotiorum Early detection of lettuce drop is best done by looking at the base of the plant where lowest leaves are in contact with soil.  Water-soaked tissue and presence of mycelium indicate that decay has begun. December 1995
1571740 Sclerotinia rot Sclerotinia sclerotiorum Lettuce drop disease showing a single plant "dropped". December 1995
1571651 lettuce Lactuca sativa Soil crack moves to seedline and causes stand reduction.  November 1995
1571624 seedlings Variation in size of two lettuce seedlings taken from the same field.  Such variation leads to problems at harvest because the crop doesn't mature sychronously.  October 1995
1572576 lettuce Lactuca sativa Iceberg lettuce head ready for harvest.  January 1997
1572574 lettuce Lactuca sativa Iceberg lettuce head ready for harvest.  January 1997
1571785 Lettuce Chlorosis Virus Crinivirus LCV Iceberg lettuce exhibiting typical symptoms causes by lettuce chlorosis virus.  January 1996
1571784 lettuce Lactuca sativa Lettuce field after harvest shows the amount of plant residue left for incorporation into soil.  January 1996
1571771 lettuce Lactuca sativa Key industry personnel inspect lettuce varieties during a lettuce variety field day.  January 1996
1571769 Lettuce Chlorosis Virus Crinivirus LCV Iceberg lettuce plant exhibiting symptoms of lettuce chlorosis virus infection.  January 1996
1571755 Lettuce Chlorosis Virus Crinivirus LCV Lettuce chlorosis symptoms in iceberg lettuce.  December 1995
1571650 lettuce Lactuca sativa Soil crack moves to seedline and causes stand reduction.  November 1995
1571649 lettuce Lactuca sativa A depression made in the soil surface will forcing soil cracking away from seedline where it will not damage seedling roots.  November 1995
1571648 lettuce Lactuca sativa Lettuce plants being thinned and weeded by hand using a specialized hoe.  November 1995
1571647 lettuce Lactuca sativa Lettuce plants after thinning.  November 1995
1571630 lettuce Lactuca sativa Lettuce seedlings emerging and causing a crack in the soil.  Note the sudangrass residue above seedlings (sudangrass allelopathy experiment).  August 1995
1571629 lettuce Lactuca sativa Lettuce seedling emerging and causing a crack in the soil.  August 1995
1570887 lettuce Lactuca sativa Lateral roots on lettuce seedling are few and many with blackened tips.  Soil toxin suspected (e.g., fertilizer injury, allelopathic crop residue). November 1994.
5364492 lettuce Lactuca sativa Some young lettuce plants growing in the field.
5364491 lettuce Lactuca sativa A young lettuce plant growing in the field.
5364490 lettuce Lactuca sativa A young lettuce plant growing in the field.
5363710 lettuce Lactuca sativa A leaf lettuce plant growing in the field.
5359673 lettuce Lactuca sativa Lettuce plants growing in the field.
5359672 lettuce Lactuca sativa Lettuce plants growing in the field.
5358377 lettuce Lactuca sativa Some young lettuce plants in the field.
5358376 lettuce Lactuca sativa A scenic view of a field of lettuce.
5357431 lettuce Lactuca sativa Double row of head lettuce in the field.
5363679 lettuce Lactuca sativa Lettuce plants bolting into flower.

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