Distribute the 30 sections evenly throughout the orchard or along the border. Staple the square to the underside of a leaf towards the edge of the tree's canopy to protect the parasites from rain and sun. In sprinkler-irrigated orchards, be sure to place the squares on leaves above the spray line. Parasites can be set out any time of day, but wait until the wasps begin to emerge from the cards to minimize loss from predation. Spray applications of T. platneri have been found to be effective when eggs do not remain in a biocarrier for more than 2 hours.
Good coverage is essential.
May be used to maintain lower populations in mating- disrupted orchards. Excessive fruit drop may occur if applied before the second cover spray. Check label for restricted entry intervals, which vary according to activity. At the low rate, azinphosmethyl is one of the least disruptive chemicals to beneficials. Addition of foliar oil for psylla control shortens residual control about 7 days.