Issue link: https://read.dmtmag.com/i/657340
10 APRIL 1, 2016 Good Fruit Grower www.goodfruit.com April mAy june july Aug. Sep. oct. 3.0 inches per week 2.5 inches 2.0 inches 1.5 inches 1.0 inches .5 inches cooler SeASon AverAge SeASon wArmer SeASon How much water do your trees need? the amount of water that trees need is calculated based on the evapotranspiration rate, which varies depending on temperature, time of year and where the orchard is located. this table, using average numbers provided by wSu extension emeritus tim Smith, charts water needs per tree for a standard older style apple orchard using overhead sprinklers. source: washington state university Jared Johnson/good Fruit grower fruit, a yellowing of the leaves caused by iron deficiency. Iron chlorosis is a relatively mild problem, he said, but avoidable for the trees in Washington. "They'd be a whole lot happier if they were drier in April," he said. "There's no pressure on them for water. They can be sitting in dry soil and be just as happy as clams." DuPont suggests growers use a com- mon soil moisture monitor, and, as part of her research proj- ect, is volunteering to visit growers in their orchards; some have taken her up on the offer already. Growers also can send soil samples to their local soils lab. Meanwhile, growers can access the U.S. Department of Agriculture's soil survey, also online, to help them determine their soil con- ditions based on address or latitude and lon- gitude coordinates. The survey uses data from 1930s soil surveys, so it's not perfect, DuPont said. "We're just trying to get you close," she said. And WSU's Ag Weather Net has an irriga- tion calculator that crunches the numbers for you, she said. For each field, the calculator will determine if plants are stressed based on soil type, the evapotranspiration for the crop and the irrigation rate. • "The rules of irrigation are physics. It's math." —Tim Smith Pest-Effective: • Season-long mating disruption • More starting active ingredient • 20% more pheromone released during the growing season Cost-Effective: • Season-long control with one application • Hand-application costs cut in half; no labor-intensive twist-ons • Minimal regulation • No harm to beneficial insects • No girdling losses Consistent, Season-Long Codling Moth Control NoMate ® CM Spiral is superior by design and performance for codling moth mating disruption in apple and pear orchards. No competing product goes on more easily, works harder, or gets better results. NoMate® CM Spiral is designed, manufactured, and supported in the United States by Scentry Biologicals, Inc., maker of the first pheromone-based product approved by the U.S. EPA. 610 Central Avenue Billings, MT 59102 (406) 248-5856 1-800-735-5323 www.scentry.com Slip-on NoMate® CM spirals consistently release volatilizing solid-matrix pheromone through flexible PVC dispensers. Female moth scent plumes are overwhelmed, thwarting male moth mating efforts. For more information, call 1-800-735-5323 or visit www.scentry.com. KERIAN MACHINES, INC. 1709 Hwy 81 South, P.O. Box 311 Grafton, ND 58237 701-352-0480 • Fax 701-352-3776 sales@kerian.com • www.kerian.com GENTLE: Separates without damaging peaches, apples, mushrooms and fresh tomatoes ACCURATE: Precisely grades grape tomatoes, cherries, nuts, and small berries, maintaining that accuracy for larger products including cantaloupes and pineapple FAST: Thirteen standard models custom- designed to meet your needs sort from 1,000 lb/hr to 100,000 lb/hr SIMPLE: Effective but simple design provides a rugged, low-cost, low-maintenance machine at a high value to our customers. It can even be used in the field! VERSATILE: Specialized rollers allow for the accurate sizing of round products (potatoes, onions, and citrus), long products (carrots, russets, and cucumbers), and irregular products (bell peppers, jalapeños, and garlic) FRUIT AND VEGETABLE KERIAN SIZER