Immediate post-bloom through about 3 weeks post bloom is the most effective time for leaf removal on tight clustered varieties such as Vignoles, Seyval, and Pinot gris. That time will be coming up soon in southern Indiana. Removal of 3 to 5 leaves in the cluster zone can greatly reduce risk of Botrytis bunch rot.[Read More…]
The weather this spring has been ideal for development of Phomopsis cane and leaf spot. The past few weeks have been cool with frequent showers, and shoot growth has been slow. These conditions favor sporulation and infection by Phomopsis. This pathogen is one of the major causes of fruit rot in the Midwest. Early season[Read More…]
Tipping of primocanes (new vegetative canes from the ground) is an important management practice for summer bearing blackberries and black raspberries. Tipping the new primocanes causes lateral branching and most of the fruit production next year will be from buds on those lateral branches rather than buds off the main cane. Tipping also helps increase[Read More…]
Blueberry Growers of Indiana Spring Meeting and potluck June 9, 4:00 pm. Sider’s Blueberry Farm. 6254 W. 200 North, Rochester, IN. More information will follow. Indiana Winery and Vineyard Association Summer meeting July 19-20. Brown County Inn. Nashville, IN. More information will follow. Indiana Hort Society Summer Field Day June 22 David Doud’s Countyline Orchard[Read More…]
The summer meeting of the Indiana Horticultural Society will be held June 22 at Doud’s Countyline Orchard in Wabash, IN. We will also visit a couple of other farms close to David Doud’s. The final details are still coming together, but I encourage you to mark this date on your calendar and plan to attend.[Read More…]
The pollination season was challenging this year and it appears that chemical thinning won’t be simple either. I think in most cases, pollination turned out to be adequate to set full crops. If growers are in doubt they should cut a few fruit in half and look for normal seed development. Before we talk about[Read More…]
Although the season for primary scab infection is winding down, this cool, wet weather is making for an excellent infection period for juniper rusts (Gymnosporangium spp). John Obermeyer and I created this time-lapse video to help explain the complicated lifecycle of this fascinating pathogen: http://tinyurl.com/j3s3t92 The juniper rusts standout due to the conspicuous nature of[Read More…]
I have seen some pretty impressive infestations of overwintering San Jose scale this spring. These infestations re-emphasize the importance of putting on a dormant oil spray each spring, as scales are one of the pests controlled by that application. SJS overwinters as an immature and is now at the point of maturing. Shortly after, they[Read More…]
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