Plant-defense-manipulation
Guides
Tetraneura nigriabdominalis
Tetraneura nigriabdominalis is a holocyclic, heteroecious gall-forming aphid native to East Asia that has expanded its range globally and is now established in Europe and North America. The species alternates between primary hosts (elm trees, genus Ulmus) and secondary hosts (roots of grasses in the family Poaceae, including maize). On elms, fundatrices induce characteristic galls on leaves, with development rates and fecundity strongly influenced by spring temperatures. The species has been documented as a potential agricultural pest due to its association with cultivated maize.