DISEASES OF FLOWERS, LEAVES AND STEMS

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Ditylenchus dipsaci – stem and bulb nematodeAs a species attacks 450+ species of plants.Symptoms vary by plant.Produces pectinases = tissue destruction.Produces auxins which causeHyperplasia = increase in cell numberHypertrophy = increase in cell sizeResults in swollen and spongy tissues
Ditylenchus dipsaci – stem and bulb nematodeStem SymptomsExample = alfalfa- Twisted leaves- Thick stems- Short internodes- Lesions in cortex as cellsdestroyed by pectinaseC.W. Laughlin
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DISEASES OF FLOWERS, LEAVES AND STEMS

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