How to get the most out of your fungicide sprays on fruit crops
May 31, 2012 · Fixed copper formulations and lime should not be used with Guthion, Imidan, Sevin, Thiodan, Bayleton, or Captan as efficacy may be lessened and the risk of phytotoxicity increased. Chemical compatibility also needs to be considered.
Fungicides, Herbicides, and Insecticides - Penn State Extension
Mar 9, 2023 · Captan. Captan is a fungicide with protective and curative action. Many of the general purpose product mixes contain captan (see Table 2.4). Captan is effective against scab, black rot, white rot, bitter rot, Brooks spot, and blossom end rot on apples.
Spray Incompatibility | Intermountain Fruit | USU
Captan and Oil may cause injury to leaves or fruit when combined in the same spray or applied within 7 - 10 days of an oil spray, particularly after a frost or during slow drying conditions. Fixed copper is not compatible with Topsin.
Mancozeb, captan, and fixed copper are broad-spectrum fungicides that are less prone to cause fungicide resistance issues. The fungicide resistance is the condition where pathogens become resistant to a particular mechanism of the fungicide, which is often called the mode of action.
Late-season fungicide sprays in grapes and potential effects on ...
Sep 23, 2011 · The broad-spectrum fungicide Captan (captan) is used by some growers late in the season to specifically control a variety of bunch rots as well as downy mildew.
Tree Fruit Disease Toolbox - Fungicide Resistance Management
Apr 16, 2023 · Broad-spectrum fungicides like copper, captan, and sulfur act by interfering with several of the fungus's vital life functions. These fungicides have multiple modes of action, which allows little chance for resistance since the fungus must …
All In One Sprays vs Mixing Your Own - Growing Fruit
Jan 7, 2017 · An all purpose spray like Bonide Fruit Tree Spray has a fungicide (Captan) and an insecticide, or 2 in this case - malathion and carbaryl. The disadvantage to a all purpose spray is that you are spraying with an insecticide when you probably only need a fungicide, or vice versa.
Using captan - General Fruit Growing - Growing Fruit
Feb 5, 2017 · Copper is much better for shot-hole, spray at pink in spring and right after leaf fall in late fall. You can also spray copper before shuck split. Chlorothalonil is another good product for shot-hole, it has a 60-day PHI so its similar to copper in that it can go down when there are leaves but not too far into the season.
Table 54. Effectiveness of Fungicides on Grape Diseases
The main drawback of copper fungicides is the potential for severe injury to grape foliage, depending on variety and weather conditions, and for reduced vine vigor and yields even in the absence of visible foiar injury.
How to get the most out of your fungicide sprays
Jul 8, 2014 · Captan can become phytotoxic when applied with oil or within four days of an oil spray. Tank-mixing some fungicides can inactivate one or both. For instance, don’t tank-mix copper with the biofungicide Serenade ( Bacillus subtilis – a bacterium), since copper is toxic to bacteria and can inactivate Serenade.