Madeline Wimmer- UMN Fruit Production Extension Educator Apples Growth stage update: Petal fall Pest highlight: Plum curculio Grapes Growth stage update: Pre-bloom Article : Understanding trellis "anatomy" for cold climate grape establishment Shoot tucking VSP vines Pest highlight: Grape phylloxera Raspberries Leafhoppers in high tunnel raspberry production. Video : Reinforcing raspberry trellis end posts on a small scale production stand. Apples Growth stage update: Petal fall Images: Apple petal fall begins with the earliest blooming flowers, after which successfully pollinated fruits will begin to develop. The tool on the right is an apple thinning template that measures fruitlet circumferences to determine effectiveness of apple post-bloom chemical thinners. Right photo by UMN Researcher, Kate Scapanski. After full bloom, once pollination window has ended, those apple fruitlets that were successfully pollinated will begin to develop as their petals senesce and fall, b...