Miticidal Tools for Management of Southern Red Mites Infesting Southern Highbush Blueberries

Tetranychid outbreaks have been detected since 2016 in southern highbush blueberries (SHB); however, it was not until 2019 that the red mite (SRM), Oligonychus ilicis (Acari: Tetranychidae) confirmed as pest causing severe bronzing and stunting, multiple Florida Georgia commercial blueberry plantings. To date, only three miticides (fenazaquin, fenpyroximate, acequinocyl) registered for use SHB there are no clear guidelines on how to manage SRM SHB. Similarly, is knowledge regarding existence of natural enemies This first report naturally occurring predatory mites (Amblyseius sp. Neoseiulus ilicis) associated with Predatory were recorded bushes after treatment seven used suppress populations including spiromesifen, acequinocyl, sulfur, sulfur + molasses, bifenazate, fenazaquin. The number per leaf averaged plant damage ratings (0 = bronzing–4 100% bronzing) evaluate miticide efficacy. Additionally, presence or absence sample recorded. Fenpyroximate standard miticide, significantly reduced numbers days application, well acequinocyl fenazaquin demonstrated best performance managing O. treated less compared control plants. These also safe mites. Lastly, level growers’ awareness assessed using surveys 2020 design adequate educational materials available grower community.