Amaranth-pest
Guides
Spoladea
beet webworm, Hawaiian beet webworm, amaranth leaf-webber
Spoladea is a genus of Crambidae moths containing two described species, with S. recurvalis being a significant agricultural pest of amaranth, spinach, and sugar beet across tropical and subtropical regions worldwide. The genus was established by Guenée in 1854. S. recurvalis has achieved nearly cosmopolitan distribution through human-mediated dispersal and is subject to intensive study for molecular mechanisms of pheromone production, flight behavior, and host plant interactions to support integrated pest management.
Spoladea recurvalis
Beet Webworm Moth, Hawaiian Beet Webworm Moth, Amaranth Leaf-Webber
Spoladea recurvalis is a small crambid moth with a global tropical and subtropical distribution. The species is a documented agricultural pest, with larvae feeding primarily on Amaranthus species (amaranth) as well as spinach, beet, and other crops. Adults require nectar feeding for survival and exhibit temperature-dependent flight activity. The species has been introduced to temperate regions including Europe and North America, where it continues to expand its range. It serves as host for the larval endoparasitoid Apanteles hemara, which has been studied for biological control potential.