Some standard varieties of wheat may yield better than others when harvested early. Use an alternative crop. Summer fallow badly infested parts of fields. Cultivate summer fallow in early June before adults emerge. Do not plant a susceptible crop on or adjacent to land that was infested in the previous year.
Parasitic insects are an important regulator of sawfly populations.
Reductions in infestations have been attributed to heavy parasitism in the same or in the immediately preceding years. Different parasite species vary in their effects on sawfly populations, depending on whether the infested host plant is in a native or cultivated habitat. One parasite, B. lisogaster, prefers larvae in grasses over cereals. The user of this information agrees to the terms and conditions in the copyright and disclaimer . Her Majesty the Queen in the Right of Alberta.