Breadcrumb Ag Home Extension Extension Topics Gardening and Horticulture Trees and Shrubs Apple Trees Page Title Apple Trees Banner Sections 诊断苹果树常见问题 Page Portals 诊断苹果树叶斑 苹果树叶上的斑点有几个不同的根本原因. 下面是你在北达科他州可能遇到的几种最常见的叶斑病. 诊断苹果树叶子变色 苹果树叶上的变色可能是令人担忧的,这是有充分理由的. 这个问题背后有一些常见的原因,我们有一些管理技巧来帮助你解决这个问题. Diagnosing Powdery Mildew Summary 诊断苹果树的叶子有洞或带 诊断苹果树的叶子有洞或带 诊断苹果树果实问题 当苹果在树枝上成熟时,你可能会在苹果的表面看到许多不同的问题. 下面是我们在北达科他州可能遇到的一些最常见的问题. 苹果树冠瘿病的诊断 树冠瘿是由一种土壤传播的细菌引起的,这种细菌会进入割草机造成的树木伤口, pruning, frost cracks, insects or planting damage. Apple Tree Publications From Orchard to Table: Apples!研究继续表明,苹果中的纤维、天然抗氧化剂和其他植物化学物质(“植物化学物质”)可能有助于预防慢性疾病. 学习种植苹果树,苹果和健康,以及如何保存和… 农药安全:园丁和房主指南农药可以提高我们食物供应的质量和数量, 预防疾病,改善环境的舒适度和美观性. 使用杀虫剂并非没有风险. 每个农药喷洒者都有责任…… 菜园和后院水果的授粉本出版物总结了北达科他州后院园丁种植的不同蔬菜和水果的授粉过程. 成功的授粉是水果或浆果生产所必需的. 传粉者在生长中的作用…… 在北达科他州开社区果园对于有兴趣建立社区果园的组织来说,这是一个有价值的资源. 它提供了如何规划果园、选择水果和组织志愿者的信息. 它还提供植物来源,样本预算,… 以草原森林水果为特色的防风食谱除了遮荫和防风,许多树木提供可食用的水果,可以在我们的菜单上使用. 本出版物提供有关树木的信息, as well as, 许多食谱告诉我们如何将它们纳入我们的菜单. Results: 1 - 5 of 5 1 Extension Topics Extension Topics 4-H Youth Development Join 4-H! Become a Volunteer ND 4-H Camps Members & Volunteers Clubs Contests 4-H工程设计大赛 Chef For a Day Grill Off Clothing Revue Communication Arts Consumer Decision Making Crops Judging Dairy Cattle Judging Hippology 马匹示范/图文讲座 Horse Judging Horse Quiz Bowl Land Judging Livestock Judging Livestock Quiz Bowl Meat Judging Project Expo Range Judging Shooting Sports Sportfishing Projects Give to N.D. 4-H Leadership Opportunities Events Contact Us Agriculture Disasters Food and Nutrition Food Preparation Cooking Basics Beans, Lentils, Chickpeas Pulse Crops Pulse Crop Publications Research Teaching Materials World Pulses Day Cooking 101 Grilling Now You're Cookin'! Vary Your Veggies Focus on Whole Fruits Quick Mixes Cooking on a Budget Family Meals Field to Fork/Garden to Table 食品保存和野生动物 Can Cure and Smoke Dry Equipment Freeze Pickle and Ferment Wild Game Food Safety Allergens Home Community Foodservice Food Entrepreneurship 食品创业学习模块 Community Supported Agriculture Nutrition, Health and Wellness 青少年健康与营养 Chronic Disease Prevention Exploring MyPlate Food's Role in Health Medications and Supplements New and Expectant Parents Nourish Your Body Physical Activity Recipes Teaching Kits Subscribe Contact Us Gardening and Horticulture Flowers 香脂:被遗忘的花园宝藏 鼓励蜜蜂参观你的院子和花园 如何帮助恢复北达科他州的帝王蝶 观赏草是北达科他州完美的多年生植物 Fruits How To Harvest and Store Apples 在北达科他州,试试加拿大的Haskaps代替蓝莓 北达科他州最好的苹果 北达科他州最好的杏品种 北达科他州最好的樱桃梅品种 北达科他州最好的海棠品种 北达科他州最好的梨品种 北达科他州最好的覆盆子品种 What is a Blue Raspberry? Lawn and Yard Bird Feeding Stations Do You Have a Thatch Problem? 劳动节是给草坪施肥的最佳时间 草坪和庭院干旱管理 How to Mow Your Lawn 用除草剂管理蒲公英 Should You Aerate Your Lawn? 给草坪浇水的正确方法 Pollinators Hornets (Yellowjackets) Trees and Shrubs Apple Trees 除草剂引起的苹果树叶片变形和拔罐 苹果树冠瘿病的诊断 诊断苹果树果实问题 诊断苹果树叶子变色 诊断苹果树的叶子有洞或带 诊断苹果树叶斑 Diagnosing Powdery Mildew 如何通过修剪使你的老苹果树恢复活力 用陷阱管理苹果蛆蝇 Selecting A Crabapple Tree Fall Needle Drop in Evergreens Preparing Trees for Winter What's Wrong with my Apple Tree? Winter Injury on Spruce Trees Yellowheaded Spruce Sawfly Boxelder Bugs 为树木和灌木选择护根物 Drought and Trees Fast-Growing Shade Trees 冬季如何包裹树木 Emerald Ash Borer 鞑靼枫树增添了充满活力的秋天色彩 美国榆树卷土重来 北皇后™日本榆树 Tough Shrubs 坚韧的灌木:无梗菊 Vegetables 支持番茄藤的3种选择 Worm-free Sweet Corn deliata南瓜:超级甜的冬瓜 泻盐不能防止花端腐烂 How to Grow Big Onions 千禧年是芦笋的新领导者 The Best Peas for North Dakota Family Aging Well Aging in Place Aging in Community 社区就地老龄化-促进老年人更好生活(CAPABLE)计划 Stepping On 家庭改造项目之声 Family Caregiving Powerful Tools for Caregivers Health and Well-being Aging Mastery Fit and Strong! 太极拳:运动以获得更好的平衡 Parenting Basic Beginnings Events Teaching Kits 领导与公民参与 Programs Building Tomorrow's Leaders Building Tomorrow’s Leaders Jr. Community Impressions Growing Leaders Short Course Lead Local Rethinking Rural Marketing Hometown America Rural Leadership North Dakota 水土保持领导学院 Youth Lead Local Engage High School Seniors Board Management 有效的董事会吸引热情的志愿者 Understanding Change Theory Understanding Transitions Communication Ethical Leadership Personal Awareness Strategic Planning Contact Us Events 商业报告,表格和许可证 County Extension Offices