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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 ...
Septoria leaf spot infects the blueberry plant through spores ejected from infected leaves and stem lesions left on the ground from the previous harvest season. These spores infect the crop and small white/tan leaf lesions form on the plant and the stem in early May. These lesions continue to develop and multiply through September. [62]
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.
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.
The narrow bulbs are formed from a single leaf base [8] and produce bright green entire, elliptical leaves up to 25 cm (9.8 in) long x 7 cm (2.8 in) wide with a petiole up to 20 cm (7.9 in) long. [8] The inflorescence is an umbel of six to 20 white flowers, lacking the bulbils produced by some other Allium species such as Allium vineale (crow ...
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 ...
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]