It can be useful to compare this growing with previous years. The typical way we calculate growing conditions is by calculating Growing Degree Days (GDD). This is somewhat similar to the method many are familiar with for calculating codling moth emergence. In Figure 1, we see the accumulation of GDD over the last 10 years.[Read More…]
Pome Fruits
Due to the COVID crisis, all Purdue Extension meetings have been cancelled until further notice. Some may be offered by distance education, but no in-person meetings will be allowed. Most Purdue Extension staff are working from home. We are available to answer your questions by email, phone or through social media. Our contact information is[Read More…]
Fruit crops are beginning development, especially in the southern part of the state. Brambles are at 1/2 to 3/4 inch green in the south, and just pushing buds in the Lafayette area. Grapes are at early swell in the south, but still dormant in the Lafayette area, though some are bleeding when pruned. Peaches are[Read More…]
Due to the COVID crisis, all Purdue Extension meetings have been cancelled until further notice. Some may be offered by distance education, but no in-person meetings will be allowed. Most Purdue Extension staff are working from home. We are available to answer your questions by email, phone or through social media. Our contact information is[Read More…]
September 5, 2019 Hydroponics & Greenhouse workshop Purdue University, Deans auditorium, HLA greenhouse Contact Lori Jolly-Brown, ljollybr@purdue.edu Participants learned about optimal conditions for growing hydroponic lettuce, including nutrient recipes, production systems, artificial lighting practices and optimal temperatures for lettuce. Workshop attendees had the opportunity to tour the department’s greenhouse and hydroponic facilities where several hands-on[Read More…]
Rootstocks, Replant, and Reconsiderations Replant disease is a term that describes reduced productivity and ‘failure to thrive’ of new plantings of trees back into orchards of the same or closely related tree fruit (or nut) crops. Historically, it has been referred to as ‘soil sickness, soil exhaustion, replant disorder, and replant problem’. Regardless of name,[Read More…]
Join participants across Indiana, and the greater-Midwest on Thursday, October 10, 2019, for the sixth annual Great Lakes Great Apple Crunch! Or, host your Crunch any day and time in October that works for you. Register below to receive the 2019 Apple Crunch Guide and stickers! The Great Lakes Great Apple Crunch is a great[Read More…]
Grapes harvest has started in the Lafayette area. A bit of both powdery and downy mildew are present on leaves, but overall fruit quality looks great. Recent rains did not cause fruit cracking so fruit rots are minimal. Early apples are over and mid-season varieties are getting close. Fall bearing (primocane fruiting) red raspberries and[Read More…]
The symptoms of sooty blotch and flyspeck (SBFS) have begun to make their appearance. I know this because 1). I’m starting to see spots (Fig 1, 2 & 3). We have accumulated MORE THAN enough hours of post- petal fall leaf wetness needed for infection to occur, despite the sudden drought conditions. First, what is[Read More…]