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Ditylenchus destructor is a plant pathogenic nematode commonly known as the potato rot nematode. Other common names include the iris nematode, the potato tuber eelworm and the potato tuber nematode. It is an endoparasitic, migratory nematode commonly found in areas such as the United States, Europe, central Asia and Southern Africa.
Dirt protects the potatoes from premature spoiling, and storing moist potatoes could lead to mold Store potatoes in cool but not cold temperatures; between 45°F and 55°F is ideal.
The pronotum and wing covers are covered in dense, short greyish hairs. The larva is known as a wireworm and lives in the soil. It is yellow, slender, stiff and leathery, and grows to a length of about 20 mm (0.8 in). The centre of the mandible has a small tooth for gnawing. [3]
Click beetle larvae, called wireworms, are usually saprophagous, living on dead organisms, but some species are serious agricultural pests, and others are active predators of other insect larvae. Some elaterid species are bioluminescent in both larval and adult form, such as those of the genus Pyrophorus .
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In a lab cultured sample taken from black dot of potatoes, conidia grew best at 82.4 F and a pH of 6. [1] High humidity and temperature are conducive to the inoculation of black dot. [ 4 ] The disease is spread more quickly when there are many sclerotia in the soil, rather than when the foliage is inoculated by conidiospores.
“A brush is a must-have to ensure the entire surface gets effectively cleaned, especially in irregular areas like the eyes of potatoes,” explains Sarah Brekke, M.S., Better Homes & Gardens ...