Grapes
Now is the time to start thinking about leaf removal in grapevines. Cluster zone leaf removal can lower risk of disease, increase spray penetration and even improve fruit quality. The period immediately after bloom to 3 weeks post-bloom is the most effective time for leaf removal. Leaf pulling after this time can increase the risk[Read More…]
The periodical cicada (Figure 1) emergence is expected to begin shortly. Female cicadas lay eggs in 200+ woody tree species (Figure 2), and they have a strong preference for grapevines, apples, cherries, peaches, & plums. Egg laying can weaken and damage branches, causing them to turn brown, die, and break off. The loss of branches[Read More…]
Spring temperatures and the season so far It seems like it’s been warm and that we’re way ahead of normal. But the data paint a slightly different picture. First, let’s not talk too much about “normal”. In the last 10 years or so that I’ve been plotting these data, EVERY year has been warmer than[Read More…]
Due to the COVID crisis, most Purdue Extension meetings will be held virtually. Most Purdue Extension staff are working from home and are available to answer your questions by email, phone or through social media. Our contact information is at the end of the newsletter. September 10-12, 2020 Purdue Extension Master Gardener State Conference Sponsored[Read More…]
Grape harvest continues. Recent rainy weather is making late season fruit rots more problematic on susceptible varieties. Apples are sizing up nicely and mid-season varieties are beginning to ripen. Primocane black and red raspberries are beginning to ripen. Black Magic primocane blackberry harvest is winding down and APF45 harvest is just starting. Pawpaw fruit are[Read More…]
Late season fruit rots: Sour rot complex, Botrytis and Ripe rot are major concerns in the Midwest. Though it’s been pretty dry across much of the state recently, some untimely rains can lead to disaster. Once berries split due to rain, yeasts and bacteria quickly invade damaged fruit, leading to rots that attract fruit flies.[Read More…]