Published online by Cambridge University Press: 31 May 2012
Testing arthropods for their ability to transmit plant viruses depends on a satisfactory means of confining test specimens on plant hosts while excluding all other arthropods. This can be difficult with small, active insects such as the Thysanoptera. Screen or cloth capable of confining them must be of such fine mesh that adequate ventilation is prevented and condensation becomes a problem.
1 Contrbution No. 1, Research Laboratory, Research Branch, Canada Agriculture, Vineland Station, Ontario.