Septoria Leaf Spot of Blueberry and Grape

 

Septoria Leaf Spot
The septoria leaf spot fungus overwinters
in infected leaves on the ground
and in stem lesions.
Photo courtesy of NCSU Cooperative
Extension Service.

 

Symptoms:

  • Small to medium brown leaf spots with purplish margins.
  • Lesions on succulent green stems.
  • Premature defoliation

Powdery Mildew of Blueberry

 

Powdery Mildew
Yellow to black fruiting
bodies (cleistothecia) form on infected
leaves. Photo courtesy of
NCSU Cooperative Extension Service

The powdery mildew disease usually does not develop on blueberry leaves until midsummer after the crop is harvested.

Symptoms:

  • A white fungus growth

Blueberry Diseases: An Overview

Diseases caused by plant pathogenic fungi, viruses and bacteria can cause significant economic loss in commercial blueberry fields.

Blueberry diseases can be grouped into broad categories based on the type of plant pathogenic organism that causes the diseases – fungi, …

Southern Highbush Blueberry Varieties

Production of southern highbush blueberries in the southeastern United States for the early fresh market is relatively new and acreage is limited. Because southern highbush blueberry cultivars vary in adaptation, vigor, and longevity; and site requirements differ significantly from that …

Rabbiteye Blueberries

The rabbiteye blueberry (Vaccinium ashei) is native to the southeastern United States. Its native habitat ranges northward from central Florida to eastern North Carolina and westward to eastern Texas and southern Arkansas. The highbush blueberry (Vaccinium corymbosum) is native to …

Soil Tests

Knowing the type and amount of nutrients in your soil, could save you, as a blueberry producer, money. To do this, it is important to have your soil tested.

According to the United States Department of Agriculture, nutrient management …

Questions to Ask at a Nursery

Blueberry growers who plan to buy plants from nurseries should arrive with a list of questions to ask. Here are some questions to help you get started:

  • What are the best blueberry cultivars for my area?
  • When should I plant