Extract from Wikipedia article: Penicillium italicum is a fungal plant pathogen. It is a common post harvest disease commonly associated with citrus fruits.
Fallen fruits of trifoliate orange with blue and green mould caused by fungus Penicillium italicum on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 1, 2019 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Blue mould caused by fungus Penicillium italicum on fallen fruits of trifoliate orange on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 1, 2019 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Close up of blue mould caused by fungus Penicillium italicum on a fallen and rotting fruit of trifoliate orange on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 1, 2019 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Blue mould caused by fungus Penicillium italicum on a fallen and rotting fruit of trifoliate orange in area of Caney Creek crossing on Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, February 9, 2020 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Blue mould caused by fungus Penicillium italicum on fallen fruits of trifoliate orange in area of Caney Creek crossing on Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, February 9, 2020 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Blue mould caused by fungus Penicillium italicum on fallen fruits of trifoliate orange on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, December 28, 2020 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Blue mould caused by fungus Penicillium italicum on a rotting fruit of trifoliate orange on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, December 28, 2020 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Blue mould caused by fungus Penicillium italicum(?) on a fallen fruit of trifoliate orange on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 7, 2021 Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Rotting fruit of trifoliate orange with blue and green mould caused by fungus Penicillium italicum(?) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 7, 2021 Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Blue mould caused by fungus Penicillium italicum on a fallen fruit of trifoliate orange on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, December 29, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Close-up of blue mould caused by fungus Penicillium italicum on a fallen fruit of trifoliate orange on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, December 29, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Variable in size conidia (in lugol) of blue mold fungus (Penicillium italicum) from trifoliate orange, collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 30, 2022
Conidiospores (in lugol) of blue mold fungus (Penicillium italicum) from trifoliate orange, collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 30, 2022
Blue mould caused by fungus Penicillium italicum on a fallen and crashed fruit of trifoliate orange on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 18, 2023 Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Close-up of blue mould caused by fungus Penicillium italicum on a crashed fruit of trifoliate orange on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 18, 2023 Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States