Nematode infections in plants can lead to a variety of symptoms, which can vary depending on the type of nematode and the host plant. Common symptoms include:
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Stunted Growth: Infected plants often show reduced overall growth and vigor.
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Wilting: Plants may wilt despite adequate soil moisture due to root damage.
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Yellowing of Leaves: Chlorosis or yellowing of leaves can occur, often starting with older leaves.
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Root Galls or Knots: Many nematodes, especially root-knot nematodes, cause the formation of galls or nodules on roots.
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Root Damage: Symptoms may include lesions, decay, or a general decline in root health.
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Poor Fruit Development: Infected plants may produce fewer or smaller fruits, or fruits may be misshaped.
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Dashed or Distorted Roots: Roots may appear disfigured or have abnormal growth patterns.
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Lack of Nutrient Uptake: Due to root damage, plants may show signs of nutrient deficiency.
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Susceptibility to Secondary Infections: Damaged plants may be more prone to infections from diseases or pests.
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Mottled or Patchy Leaf Symptoms: There may be irregular patterns on leaves due to localized stress.
Identifying nematode infections can often require laboratory assays or soil testing, as some of the symptoms can be similar to those caused by other plant diseases or environmental stresses.
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