Peter M Hirst
Facts for Fancy Fruit Editor & Professor of Horticulture
Department of Horticulture and Landscape Architecture
Area(s) of Interest: Commercial Tree Fruit Production
Department of Horticulture and Landscape Architecture
Area(s) of Interest: Commercial Tree Fruit Production
Northern Pecan Growers seminar: September 17th, 2016 Pecans for the Back Yard or back 40 Commercial Grove. Scottsburg High School, (Commons room) Registration deadline August 30th 2016 Cost $20.00 includes catered lunch, seminar and tour of USDA cooperator test grove of named and experimental cultivars in production. More information and registration: www.vaughnfamilypecanfarm.com Pay online or[Read More…]
Grape harvest has began in the southern part of the state and will begin in central areas over the next week or so. Early varieties are nearing full maturity while late varieties are just at, or not yet at veraison. Overall fruit quality looks excellent. Apple harvest continues. Summer varieties are mostly done and early[Read More…]
Harvest of early season apples has begun in many places around the state. Many of these early apples can suffer from extreme pre-harvest drop. Pristine is certainly in this category, so be careful not to allow fruit to become too ripe on the tree. This risks a large proportion of the crop falling on the[Read More…]
Although PristineTM was selected in 1982, its history goes back to the early days of the PRI breeding program. From an original cross of Rome Beauty with Malus floribunda 821, selections and hybridizations were made incorporating Golden Delicious, McIntosh, Starking Delicious and Cazumat along the way. The cross that resulted in PristineTM was Coop 10[Read More…]
ReTain (AVG) is a plant growth regulator that blocks the production of ethylene. When ReTain is applied to apple, several ripening processes are slowed, including preharvest drop, fruit flesh softening, starch disappearance, and red color formation. In order for ReTain to be effective it must be applied well in advance of the climacteric rise in[Read More…]
Preharvest drop refers to the process where fruit fall from the tree prior to harvest. Not all apple varieties are affected, but with some, such as McIntosh and Pristine, pre-harvest drop can be extreme. Several growth regulator materials are available to growers to help reduce pre-harvest drop. These materials are often referred to as “stop-drop”[Read More…]
Making the decision on when to harvest can be a very tricky and complicated issue. The longer you intend to store the fruit, the more precise your timing needs to be. For summer apples, most growers only intend to store fruit until their better quality fall apples come on stream, so storage times beyond a[Read More…]