PT  - JOURNAL ARTICLE
AU  - Bhandari, Rekha
AU  - Zaman, Faruque
AU  - Hall, Megan
AU  - Gold, Kaitlin
AU  - Wise, Alice
AU  - Walter-Peterson, Hans
AU  - Loeb, Greg
TI  - Understanding Grape Sour Rot Complex
AID  - 10.5344/ajev.2024.22072
DP  - 2024 Jul 01
TA  - American Journal of Enology and Viticulture
PG  - 0750026
VI  - 75
IP  - 2
4099  - http://www.ajevonline.org/content/75/2/0750026.short
4100  - http://www.ajevonline.org/content/75/2/0750026.full
SO  - Am J Enol Vitic.2024 Jul 01; 75
AB  - Background and goals Sour rot, a major challenge in grape production, is caused by the interaction of microorganisms and Drosophila flies. It is distinct from another common grape rot in vineyards, Botrytis bunch rot, which is caused by Botrytis cinerea. As fungicides used against Botrytis do not control sour rot, to effectively implement management practices targeted for sour rot, it is crucial to understand, identify, and differentiate the symptoms of sour rot from those of Botrytis.Methods and key findings These videos educate audiences on recognizing the symptoms of sour rot and Botrytis bunch rot by emphasizing each disease’s key etiological and visual distinctions. Part 1 informs viewers on how to differentiate sour rot disease symptoms and causal agents. Part 2 provides an overview of integrated pest management (IPM) approaches for sour rot, including chemical controls for the causal agents as well as cultural practices that reduce disease risk.Conclusions and significance Effective management of sour rot requires correct identification of symptoms and use of IPM strategies, as commonly-used fungicides for rots are not effective against sour rot. These videos help growers and researchers identify, adopt, and explore different IPM options for sour rot.