Category Archives: Diseases

Antimicrobial Activity in Lingonberry

This study from Romania/Hungary showed that lingonberries have a high anti-microbial activity especially relating to Pseudomonas species. The authors found that where you harvest makes a big difference in this anti-microbial activity. When selecting for high activity, the location needs to be considered. It is not known just what in the environment is influencing the activity, but it can be highly variable.

2017 Laslo

Cornell Berry Diagnostics

The Cornell Cooperative Extensions Berry Diagnostic Tool is an excellent resource for anyone growing or interested in strawberries, raspberries, blueberries, blackberries, currants, and gooseberries. This online tool allows anyone to select a berry crop and then from a variety of descriptions of plant growth issues, deformities, discolorations, damage, or other indicator that occurs on the whole plant, flower, fruit, or vegetative to continue to diagnose the issue. Lots of photographs and links to in depth articles are included about many diagnoses to really get to the “root” of the issue. Finally, recommendations for management of the issue can be selected after referring to the images and descriptions
Citation: Cornell Cooperative Extension. 2016. Cornell Fruit Berry Diagnostic Tool. Available online: Diagnosis. Accessed: 12 October 201

Raspberry Bushy Dwarf virus on Nagoonberry (Arctic Bramble)

“New Host for Raspberry Bushy Dwarf Virus: Arctic Bramble (Rubus Arcticus)”

RBDV was identified in three new host plants of the rubus species : Arctic Bramble, Alaskan Arctic Bramble, and their hybrid. It was identified through the same symptoms found in the test plants,  Chenopodium quinoa and C. Amaranticolor. The presence of the virus affecting sucrose density, protein analyses in gel electrophoresis, and experimental plots are studied. KH Fairbanks

Haimi, P. Karenlampi, S. Kokko, H. Lemmety, A. 1996. “New Host for Raspberry Bushy Dwarf Virus: Arctic Bramble (Rubus Arcticus).” European Journal of Plant Pathology 102(7): 713-717.

Mummy Berry on Blueberries

Mummy Berry.  The link above talks about a disease in berries called the mummy berry disease, specifically in blueberries. It is almost like an “airborn” disease for humans because the spores spread with the wind and land on leaves and the berries. The article by Vern Grubinger talks about the mummy disease and he says, ” About a week or two after becoming infected, the leaves and shoots wilt and turn brown. This damage can easily be mistaken for frost injury.” (Mummy Berry Disease of Blueberry, Grubinger, p.5). It is important to take care of your plants because just like humans, they can catch things and it can ruin your entire batch of berries. It is important to know the care and how to prevent diseases like this. AK Fairbanks