From 1919 until 1924 Myers was employed as entomologist in the Biological Division of the New Zealand Department of Agriculture, where he worked on the cattle tick and other pests.
In the following year he was appointed to the staff of the Imperial Institute of Entomology to organize the breeding of parasites of injurious insects for export to the Dominions and colonies of the British Empire.
[2] Myers next visited Australia to investigate the passage of dried fruit from the vine to the consumer and was successful in tracing the sources of insect infestation.
Here he under took a number of private expeditions at the request of various planters, collecting and studying the ecology of insect pests in parts of British Guiana, Venezuela and Brazil.
Apart from his many papers on biological control and related topics, Myers produced a large number of works on insects of the order Hemiptera which showed him to be a morphologist and systematist of note.