Top. However, there are three good reasons why a herbicide-fungicide tank mixture may not be the best idea - improper timing, drift, and labeling precautions. Re: Mixing Fungicides and Insecticides together. Points to keep in mind . Post by CarolinaCuttin » Fri Sep 04, 2020 12:45 am. For over 25 years, Joyce Starr has owned businesses dealing with landscape & design, lawn maintenance, specialty herbs and a garden center. The convenience of tank mixing products to control weeds and disease all in one spray application is obvious. When should a pesticide solution be acidified in the spray tank? With single application we might control a few pests and diseases and apply foliar fertilizers. Fungicides; Baits & poisons; Insecticides; Guidelines for tank mixing. When all 15 locations were combined and analyzed, the foliar fungicide and insecticide tank mixture produced an average yield increase of 1.6 bushels per acre, which is just over half the yield increase required to break even. If you know that your mix water has a pH of 7.5 or greater, consider lowering the pH, especially if you are applying a pesticide that is sensitive to high pH. She holds … Tank-mixing pesticides is a routine procedure which can reduce the cost of application, enhance the activity of certain products, and widen the range of treatments in a single application. It is important to pay attention to compatibility of different products before we tank mix any product. Not all pesticides react the same to the pH of the spray water solution and some products should not be used with buffering agents. A pH of 4 to 7 is recommended for mixing most pesticides; a value of 5.5 to 6.5 is ideal. Writer Bio. Mixing certain fungicides and insecticides together may cause both to lose their maximum effectiveness. Wear gloves and protective eyewear when using the combined mixture, as it may be more toxic mixed than when alone. When tank mixing multiple pesticides or foliar fertilizers, check the pH after the products have been thoroughly mixed and adjust the pH as needed. Page last updated: Tuesday, 7 April 2020 - 5:17pm. overall results revealed that tank mixing of fungicides with insecticides involved in the present studies did not reduce the efficacy of the fungicides against rice sheath blight and that of insecticides against brown planthopper and leaf folder. Trying to make a tank mixture work for weed control and soybean rust control may result in poor performance of both pesticides. Syngenta, for example, has a registered tank mix for Horizon herbicide and Tilt fungicide. LoveMyLawn wrote: ↑ Thu Sep 03, 2020 … CarolinaCuttin TLF Supporter Posts: 659 Joined: Fri Sep 06, 2019 9:21 pm Location: South Carolina Grass Type: Turf-Type Tall Fescue Lawn Size: 1000 sqft Mower: John Deere D140. 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