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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.
Datura stramonium, known by the common names thornapple, jimsonweed (jimson weed), or devil's trumpet, [2] is a poisonous flowering plant in the Daturae tribe of the nightshade family Solanaceae. [3] Its likely origin was in Central America , [ 2 ] [ 4 ] and it has been introduced in many world regions.
Symptoms of TSV may include black streaks on stems and leaves, stunted growth, chlorosis, leaf mosaic, lodging, and deformed growing tips, to name a few. [5] On tobacco plants, TSV causes chlorosis, with a unique pattern of white or dark necrotic leaf tissue close to the veins of the leaf.
This plant may look like wildflowers, but it can cause painful rash and blistering. A video of an Iowa resident with the rash explains why. Common weed can cause painful rash
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Temperature can affect how symptoms appear on the host. Optimal temperature for growth of C. acutatum is 25 degrees Celsius. [6] For instance, in weather with high humidity, orange colored spores appear on the hosts' lesions. [4] Specifically in strawberries, this disease appears to be more harmful in warm climates. [8]
Locoweed (also crazyweed and loco) is a common name in North America for any plant that produces swainsonine, an alkaloid harmful to livestock.Worldwide, swainsonine is produced by a small number of species, most of them in three genera of the flowering plant family Fabaceae: Oxytropis and Astragalus in North America, [1] and Swainsona in Australia.
With that being said, let's go back to step one, identification, and take a look at some of the most common types of weeds. Dandelions This perennial weed is easily recognized by its bright yellow ...