Growing Tree Fruits Successfully
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Presentation Topics Growing Tree Fruits Site and Soil Successfully Prepare Site and Irrigation Rootstock and Varieties Planting Pruning and Thinning Fruit Integrated Pest Management (IPM) and Common Pests of Tree Fruits Presented by Tree Fruit Specialists Maintenance Schedule Site Considerations Spacing Recommendations Why are site conditions so important? Distance between fruit trees Spacing Recommendations Apple, Standard 30 ft. Sunlight Requirements Apple, Semi-Dwarf 15 ft. Micro-Climates Apple, Dwarf 10 ft. Pear, Standard 20 ft. Pear, Semi-Dwarf 15 ft. Plum 15 ft. Cherry, Sweet 20 ft. 30’ x 30’ = 1 Standard Apple Tree 30’ x 30’ = 4 Semi-Dwarf Apple Trees How to space the trees? Or 30’ x 30’ = 9 Dwarf Apple Trees Sunlight Requirements Ideally 8 to 10 hours, for optimum... Growth Blossoming and pollination Fruit set and production Minimum of 6 to 8 hours Cold Air Goes to the Micro-Climates Bottom of a Slope Variation in elevation Structures near your orchard site Surrounding trees, forests and fields Know your directional exposure Sun, wind, rain and frost pockets Source: http://www.islandnet.com/~see/weather/elements/frostpock.htm You Can Divert the Cold Air Flow Soil Assessment Soil Percolation Test Soil Texture Send your soil to a soil lab for testing Source: http://www.islandnet.com/~see/weather/elements/frostpock.htm Soil Percolation Test Soil Percolation Test Tree fruits need well drained soils A soil percolation test measures the water Do a percolation test: absorption rate of your garden soil. Dig a hole 1 ½’ to 3’ deep and 6” to 12” wide Fill the hole with water, let it drain Fill the hole a second time and measure how much water drains per hour • A rate of 1 to 2 inches per hour is ideal 50% Sand 40% Silt Soil Texture 10% Clay Feel Test : Ribbon Test Rub a small amount of DRY soil in the palm of your hand. What does it feel like? Gritty, smooth, floury? Source: http://www.cmhc-schl.gc.ca/en/co/maho/la/la_001.cfm Send your soil to a lab for testing A List of Analytical Labs Serving Oregon: OSU Extension Publication EM8677 What to test for? pH (tree fruits prefer a soil pH of 6.5 to 6.8) P (phosphorus) K (potassium) Ca (calcium) Mg (magnesium) B (boron) - ask for this test specifically Source: California Fertilizer Association. 1998. Western Fertilizer Handbook. Interpreting Soil Test Results luxury consumption “yes”“maybe” “no” Nutrient Units Low Medium High Excessive P ppm <20 20-40 40-100 >100 K ppm <150 150-250 250-800 >800 Yes Maybe No Ca ppm <1000 1000-2000 >2000 >>2000 Mg ppm <60 60-180 >180 >>180 B ppm <0.5 0.5-2 >2 >>2 Nutrient Units Low Medium High Excessive K meq/100 g <0.4 0.4-0.6 0.6-2.0 >2.0 Ca meq/100 g <5 5-10 >10 >>10 Mg meq/100 g <0.5 0.5-1.5 >1.5 >>1.5 For More Soil Information... Presentation Topics View the Lane County Soil Survey at the Site and Soil NRCS Office Prepare Site and Irrigation 780 Bailey Hill Road, Eugene 97405 Rootstock and Varieties 541-465-6443 Planting Soil Survey information is also available Pruning and Thinning Fruit online at... http://www.or.nrcs.usda.gov/soils.html Integrated Pest Management (IPM) and Common Pests of Tree Fruits Maintenance Schedule Prepare the Site Irrigation Clear the area of weeds Establish an irrigation system and rocks Water needs to reach all trees Amend the soil Avoid overhead watering Consider incorporating organic matter into the Summer watering soil throughout the entire orchard Water new trees weekly Recommendations from soil test Water established trees monthly • If lime is needed, it is best to add it ~6 months in advance of the planting date Irrigation Check Presentation Topics Do a test run of irrigation system Site and Soil At the drip line of the tree, use a shovel or Prepare Site and Irrigation soil probe to obtain a handful of soil from Rootstock and Varieties about 8 inches deep Planting Grab the soil - it should be Pruning and Thinning Fruit moist, but not wet Integrated Pest Management (IPM) and You will soon learn your soil! Common Pests of Tree Fruits Maintenance Schedule Source: http://www.cmhc-schl.gc.ca/en/co/maho/la/la_001.cfm Choosing a Rootstock Spacing of Trees What size of tree is best? The EASY answer: The height is the How much space do you have? distance between trees Do you have deer? Dwarf: 1 to 8 feet tall No ladder or ladder work Semi-dwarf: 16 feet tall Differences between Standard, Semi-Dwarf, Standard: 25 to 30 feet…and taller if not and Dwarf trees pruned Apple Rootstocks How to Select Varieties Select disease-resistant varieties Semi-standard Standard Seedling Select varieties with maintenance 16 Semi-dwarf MM111 16 MM106 14 Dwarf 14 requirements in mind 12 M7 12 Sub- 10 M26 10 8 dwarf M9 8 Size 6 M27 6 4 4 How much fruit do you want? 2 2 Pollination Bud 9 G.11 G.30 G.65 Supporter 4 Apple Varieties Common PNW Apple Varieties Until 1950, ~1,200 varieties of apples had Akane Granny Smith been developed Braeburn Gravenstein 1950 – 2011, over 200 varieties of apples Earligold Jonagold developed Elstar Lodi Empire Newton Fuji Red Delicious Gala Golden Delicious Apple Scab-Resistant Varieties Common PNW Pear Varieties Akane (Tokyo Rose) European Asian Chehalis Anjou (Green and Red) Chojuro Enterprise* Bartlett (Yellow and Red) Hosui Liberty Bosc Kosui Comice Nijisseki Prima Reimer Red Shinseiki Pristine* Seckel Tydeman Red Starkcrimson * also powdery mildew-resistant Common PNW Plum Varieties Common PNW Cherry Varieties European Asian Bada Stella Brooks (prune) Burbank Compact Stella Sweetheart Italian (prune) Early Golden Kordia (Attika) Moyer (prune) Red Heart Lambert Parsons Shiro Lapins Stanley Regina Royal Ann How much fruit do you Common PNW Peach Varieties REALLY eat? Early Elberta Mature Apple Tree Frost* Standard: 20 boxes Genetic dwarfs Semi-Dwarf: 6 to 10 boxes July Elberta Dwarf: 3 to 6 boxes Red Haven Note: One box/bushel is equal to 42 pounds Rochester Veteran *leaf curl resistant Years to Fruit Pollination Apple: 2-5 Most fruit trees either require another variety for Apricot: 2-5 pollination or produce better when pollinated by another variety Cherry, sweet: 4-7 The bloom time of a pollinizer must be similar to Cherry, sour: 3-5 that of the variety to be pollinated Nectarine: 2-4 Pollination charts identify suitable pollinizers Peach: 2-4 There are NO comprehensive pollination charts! Some varieties of fruit trees cannot be used as Pear: 4-6 pollinizers Plum: 3-6 • For example, see ‘Winesap’ on the following slide Apple Pollination Pollination Chart Several species of bees pollinate fruit trees, including honey bees and bumble bees Orchard mason bees ( Osmia lignaria ), are exceptional pollinators that are active in the cool weather of early spring Pesticides may adversely affect Photo Source: Wikipedia pollinators. ALWAYS follow label directions! Source: “Pollination of Fruits & Nuts,” Purdue University Cooperative Extension Service Presentation Topics Planting Site and Soil When trees are available in nurseries Prepare Site and Irrigation Dig the hole as deep as the root ball and Rootstock and Varieties twice as wide as the root ball Planting Leave a small mound of dirt in the hole Pruning and Thinning Fruit Soak bare root trees for ½ hour Integrated Pest Management (IPM) and Spread roots out uniformly over mound Common Pests of Tree Fruits Maintenance Schedule Planting Planting Plant with the graft union at least 3” above Dwarf trees should be staked ground level Wrap trunk with flexible mouse guard Back fill hole with native soil (optional) Water and mulch Paint trunk with white latex paint (optional) Water deeply once a week first year 50/50 mix of paint and water Remove any plastic or metal labels Record variety and rootstock Trunk Wraps and Painting Presentation Topics Site and Soil Prepare Site and Irrigation Rootstock and Varieties Planting Pruning and Thinning Fruit Integrated Pest Management (IPM) and Common Pests of Tree Fruits Maintenance Schedule Why Prune? When to Prune? To maintain tree health Best when trees are dormant To increase air flow and light penetration November – March To improve natural form July 15 – August 15 To control size Or when you need to do it! Cherries generally pruned in summer to To increase fruit production minimize bacterial canker Anatomy of a Tree Parts of the Branch Terminal Bud Leaf Bud Terminal Bud Leaf Bud Bud Scar Flower Bud Fruit Spur Flower Bud Fruit Spur Bud Scar Only two types of pruning cuts: Fruiting Wood Thinning & Heading Apple : 2 nd year wood (that which grew the year before last) Cherry : 1 st & 2 nd year wood (look for spurs) Nectarine : 1 st year wood (that which grew last year) Peach : 1 st year wood Pear : 2 nd year wood Plum/Prune : 1 st year wood Spur versus Tip Bearing Training for Proper Crotch Angle Most apple varieties bear on spur systems Avoid unnecessary spur removal A few apple varieties bear at the tips of branches Avoid unnecessary heading cuts Photo Source: University of Wisconsin Common varieties include: Cortland, Fuji, King, Granny Smith Training for Fruit Production Types of Tree Forms Central Modified Central Vase or Leader Leader Multiple Leader Example of Training Tree Fruits Pruning Tools Hand Pruners Long-handled Loppers Hand-saw Rubbing alcohol works well to disinfect tools Three Legged Fruit Thinning Ladder Increases the size of fruit (optional) Stops biennial production When fruit is the size of a Quarter Between about May 15 - June 15 Thinning also protects the branches from breakage Pruning classes Presentation Topics List dates and locations for 2012 Site and Soil Prepare Site and Irrigation Rootstock and Varieties Planting Pruning and Thinning Fruit Integrated Pest Management (IPM) and Common Pests of Tree Fruits Maintenance Schedule What IPM is Definition of Pest IPM is a comprehensive system of orchard We will be using the term “PEST” to mean management that incorporates sound insects and diseases.