This past August I sent a couple of dead Aurora yearlings to the University of Minnesota Plant Disease Clinic for diagnosis. Planted in early June, they leafed out but died by late July.
Result: “Phoma stem canker was detected at the crown level. Consider if there are any ways that mechanical wounds could be occurring at this area of the stem; thus creating an entry point for disease.” The fee for this diagnosis was $45.
Read more about this fungus and other honeysuckle diseases at https://homeguides.sfgate.com/honeysuckle-disease-49514.html
If the canker is detected early enough on a branch it can be pruned away and disposed of into the garbage. (Be sure to disinfect pruners).
Also known as black-leg, phoma stem canker affects a range of other plants such as canola and broccoli https://pnwhandbooks.org/plantdisease/host-disease/broccoli-brassica-oleracea-black-leg-phoma-stem-canker
Powdery mildew afflicts some of our honeyberry/haskap leaves during mid to late summer but the plants bounce back and produce fruit the next year.
We have not had more than a few bushes at a time afflicted with tent caterpillars while in other areas this pest can devastate a forest or orchard during the peak years of its cycle. More info: https://www.dnr.state.mn.us/treecare/forest_health/ftc/outbreak.html
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