Devon from Grants Pass, Or writes
Trimec 992 Broadleaf Herbicide is a great broadleaf weed control but will not offer insect control. We recommend that you treat with Bifen IT. In most cases, it is not necessary to use an insecticide for crane fly larvae control. If damage is severe we would recommend using 1 fl oz of Bifen IT per gallon of water to cover each 1,000 sq ft for the initial treatment and then .5 fl oz per gallon of water for follow up treatments.
Answer last updated on: 07/17/2017