![]() ![]() Reason is effective against both early blight (5.5 fluid ounce rate) and late blight (8.2 ounces). The active ingredient in Reason is fenamidone. Tanos is a mixture of famoxate (good against early blight) and Curzate (good against late blight). Headline and Quadris are effective against late blight at double the early blight rate (12 fluid ounces per acre for both products). Most strobilurin fungicides were similar in performance in 2011 and did not perform as well as chlorothalonil. In a trial conducted by Miller Research in 2010 Quadris and Headline did not perform as well as Tanos and Gem. Historically QoI fungicides such as Evito, Headline, Quadris, Tanos, and Reason have shown high activity against early blight. This resistance has already been documented in southern Idaho. It is recommended that Quinone outside inhibitor (QoI) fungicides be tank-mixed with a standard protectant to manage fungicide resistance in the early blight population. However, these two products can also cause phytotoxicity when applied at low spray volumes or when temperatures are high. Agri Tin and Super Tin are also effective against early blight and brown spot. Both are effective against early and late blight and their efficacy is similar under the semiarid conditions of the Pacific Northwest.Īdd-in products such as Agri Tin, Super Tin, Curzate, Previcur Flex, and Forum can be mixed with the standard protectants for added disease control. Bravo or Echo) and ethylene bisdithiocarbamate (EBDC, e.g. Two groups of standard fungicides that have a broad spectrum of activity against potato diseases are chlorothalonil (e.g. Some of the more expensive products don’t necessarily provide better disease control. ![]() On the other hand, using the wrong fungicide or a less effective fungicide can cost you money. Selecting the right product for disease control can save you money. Three factors to consider when designing a foliar fungicide program include: 1) fungicide choice, 2) application method, and 3) timing and frequency of applications. Foliar fungicides can be highly effective if used properly. The purpose of this article is to provide an overview of fungicides as they relate to late blight management. The extent to which the pathogen spreads is affected by several factors, including weather and fungicide use patterns of growers. Late blight was first identified this year in a field in eastern Idaho. Late blight (caused by Phytophthora infestans) has occurred sporadically in Idaho since 1995. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |