Does your tree look like it’s bleeding sap? It might be Bacterial or Fungal Canker!

We recently received an update from Penn State Extension about bacterial canker on stone fruits (cherry, plum, peach, etc.) which provides one upside to hot midsummer temperatures. According to their recommendations, “summer is the best time to prune your [effected] trees, particularly during dry weather. The bacteria do not like hot, dry conditions and the … Continue reading Does your tree look like it’s bleeding sap? It might be Bacterial or Fungal Canker!

Early Spring Orchard Care Tips

Happy Spring, Fellow Orchardists! With the past few weeks of balmy rain and bud and flower break, we wanted to remind you of some early spring tips for tending to your orchard’s health and managing potential disease and pest woes. For a recap of orchard care through all the seasons, check out our recent POP blog article. Unwrap Your Figs … Continue reading Early Spring Orchard Care Tips

POP CORE Recap & Orchard Care Through the Seasons

POP kicked off its newest training program last Wednesday, March 8th at Bartram’s Garden called POPCORE: Community Orchardist Resilience Education. An endeavor to realize the potential and beauty of fully productive, well cared-for eco-orchards in every neighborhood, POPCORE seeks to encourage the self-sufficiency of our partners and connections between partners in close geographical proximity through … Continue reading POP CORE Recap & Orchard Care Through the Seasons

Plant Spotlight: The Joyful Juneberry (Amelanchier spp)

By 2016 POP Intern, Lucia Kearney. It’s June, and that means a piece of good news for us all: the juneberries are ripening! While this is making some of us leap up and down doing happy dances, I’m sure it’s also making some ask, “What the heck’s a juneberry?!” Great question. Read all about them … Continue reading Plant Spotlight: The Joyful Juneberry (Amelanchier spp)

Organic Sulfur Spray and Early Spring Management

By 2015 POP Intern, Steve Palder, and Program Director, Robyn Mello Spring seems to have arrived a couple of weeks early this year, and the first scab spores have been detected in Pennsylvania! If buds on your fruit trees have begun to break (green tips or flowers emerging), this morning’s good spring rains provide a great … Continue reading Organic Sulfur Spray and Early Spring Management

How to Identify, Prevent, and Treat Apple Scab

Distorting leaves and damaging fruit, apple scab (caused by the fungus Venturia inacqualis) is one of the most common and destructive orchard diseases.  Apple scab emerges as dark brown to olive green velvety lesions on leaves, fruits, stems, and twigs. In the early spring, primary (ascospore) infections hit early fruit at blossom’s end with one … Continue reading How to Identify, Prevent, and Treat Apple Scab

Black Rot of Apples and Other Pome Fruits

Black rot is a disease caused by the fungus, Botryosphaeria obtusa, which can attack the fruit, leaves, and bark of any tree in the pomaceous family (apples, pears, quinces, medlars, hawthorn). Pome fruits are fleshy fruits that do not have a central stone, but are cored with small seeds. Identifying black rot early is important … Continue reading Black Rot of Apples and Other Pome Fruits

Powdery Mildew

Powdery mildew is a very common fungal disease on several types of plants. Different species of the mildew have different host plants. Apples and pears are attacked by Podosphaera leucotricha, while stone fruits are attacked by Podosphaera clandestina and Sphaerotheca pannosa. Grapes are another frequent victim attacked by Erysiphe necator.  Raspberries, strawberries, and many ornamental plants are also sometimes affected by mildew … Continue reading Powdery Mildew

Cedar Apple Rust

Cedar Apple Rust (CAR) is a fungal disease that attacks apples. It mainly occurs in North America in areas east of the Rocky Mountains. This fungus requires two hosts to complete its life cycle: the apple (Malus) and the Eastern Red Cedar (Juniperus). Only spores produced on cedar can infect the apple. Similar cedar rusts can … Continue reading Cedar Apple Rust

Brown Rot on Stone Fruits

What is brown rot?  Brown rot is a common fungal disease (Monilinia fructicola) that affects trees in the “stone fruit” category such as peaches, nectarines, plums, cherries, and apricots. Brown rot can be very devastating, causing the fruit to rot and twigs to become cankered. Fruits infected with brown rot first appear with soft brown … Continue reading Brown Rot on Stone Fruits