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Ditylenchus dipsaci is a plant pathogenic nematode that primarily infects onion and garlic. [2] It is commonly known as the stem nematode, the stem and bulb eelworm, or onion bloat (in the United Kingdom). [3] [4] Symptoms of infection include stunted growth, discoloration of bulbs, and swollen stems.
Add a fourth garlic bulb just below the initial three bulbs so that its bulb is in the center and its stem and leaves are nestled on top of the other garlic stems. Gently wrap the rightmost garlic ...
It is a destructive disease of fruits, vegetables, and ornamentals found worldwide, and affects genera from nearly all the plant families. The bacteria mainly attack the fleshy storage organs of their hosts ( tubers , corms , bulbs , and rhizomes ), but they also affect succulent buds, stems, and petiole tissues.
Colonies of the fungus will grow on the root or a few centimeters away from the root tip. The fungus will extend throughout the root system, but the pathogen does not infect the basal stem plate or scales of the bulb. Ideal soil temperature for this pathogen and development of the disease is 24-28 degrees Celsius. [1]
As for the types of garlic you can grow, there are two main varieties: softneck, which keeps for many months and features a flexible stem, and hardneck, which has a stiff stem.
Once a plant is infected, the bacteria spread through the xylem vessels from the area of infection to the main stem, and the entire plant wilts and dies. Initial symptoms may include the wilting of single leaves and smaller stems. Infected plants may produce a creamy white bacterial ooze when cut.
Garlic bulbs are ready to harvest when one half to three-quarters of the leaves turn yellow. Lift the entire plant from the soil by hand or use a garden fork in compacted soils. Brush soil off the ...
Fungal diseases; Anthracnose Colletotrichum gloeosporioides Colletotrichum capsici Glomerella cingulata [teleomorph] Colletotrichum coccodes. Cercospora (frogeye) leaf spot Cercospora capsici. Charcoal rot Macrophomina phaseolina. Choanephora blight Choanephora cucurbitarum. Damping-off and root rot Rhizoctonia solani Phytophthora spp. Fusarium ...