[4] Females use their clubbed-shape antennae to palpate eggs laid by their primary host, Nezara viridula.

In New Zealand, T. basalis has been recorded from non-target hosts including Cermatulus nasalis (Woodward, 1837), Cuspicona simplex Walker, 1867, Green potato bug, Dictyotus caenosus (Westwood, 1837), Glaucias amyoti (Dallas, 1851), Monteithiella humeralis (Walker, 1868), and Oechalia schellenbergii (Guerin, 1831).

[6] Trissolcus basalis is considered to be an effective biocontrol agent in New Zealand, Australia, and the United States, all places where it was deliberately introduced.

[2] In 1949 T. basalis was released in New Zealand in an effort to control damage caused to crops including sweet corn and green beans by Nezara viridula.

[5] Over 48,000 parasitoids were reared from a shipment of between 200 and 300, and these were released at Awanui, Kaitaia, Paihia, Kawakawa, Whangarei, New Plymouth and Te Kaha (Bay of Plenty).