{"id":5939,"date":"2025-03-21T16:37:33","date_gmt":"2025-03-21T23:37:33","guid":{"rendered":"https:\/\/extension.wsu.edu\/wam\/?page_id=5939"},"modified":"2025-09-22T11:35:55","modified_gmt":"2025-09-22T18:35:55","slug":"past-issues-2025","status":"publish","type":"page","link":"https:\/\/extension.wsu.edu\/wam\/past-issues-2025\/","title":{"rendered":"Past Issues 2025"},"content":{"rendered":"
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\n\t\t\t\t\t\t2025 Lynden Ag Show\t\t\t<\/a>\t\t<\/h3>\n\t\t \t\t
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\n\t\t\tWe are nearly six weeks away from the 2025 Lynden Ag Show which hosts the Washington Small Fruit Conference and the Northwest Washington Potato Conference.\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/article>\n
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\n\t\t\t\t\t\tUPDATED INFORMATION: Certification and Training (C&T) Rule Changes and Your Pesticide License\t\t\t<\/a>\t\t<\/h3>\n\t\t \t\t
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\n\t\t\tNavigating requirements for obtaining and maintaining a pesticide license can be confusing. In Washington State, a pesticide license is necessary for individuals using, distributing, and consulting on the use of certain pesticides.\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/article>\n
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\n\t\t\t\t\t\tMeeting to Discuss Upcoming Changes to WSDA Applicator Licenses\t\t\t<\/a>\t\t<\/h3>\n\t\t \t\t
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\n\t\t\tBeginning in 2026, WSDA is updating pesticide licensing rules. These changes were outlined in this article back in April. With this change, the requirements for licensees will change.\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/article>\n
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\n\t\t\t\t\t\tResults from WSU Grain Variety Testing Program\t\t\t<\/a>\t\t<\/h3>\n\t\t \t\t
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\n\t\t\tResults from 2025 WSU Grain Variety Testing are now available. \t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/article>\n
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\n\t\t\t\t\t\tBerry Field Day\t\t\t<\/a>\t\t<\/h3>\n\t\t \t\t
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\n\t\t\tThis field day will showcase advanced blueberry selections and cultivars being evaluated through support provided by the Washington Blueberry Commission. \t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/article>\n
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\n\t\t\t\t\t\tExploring the linkages between calcium and fruit quality in red raspberry\t\t\t<\/a>\t\t<\/h3>\n\t\t \t\t
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\n\t\t\tCalcium is an essential nutrient that provides many important functions in plants. Most notably, calcium is associated with fruit quality and firmness due to its influential role in maintaining cell wall strength and stabilizing the membranes of cells that make up the fruit.\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/article>\n
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\n\t\t\t\t\t\tPreserving the Pacific Northwest\u2019s Berry Big-footprint\t\t\t<\/a>\t\t<\/h3>\n\t\t \t\t
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\n\t\t\tWashington is known for its berries, including raspberries. The Evergreen State is responsible for a whopping 95% of processed red raspberry production[1]. The typically mild winters and summers of northwest Washington have historically been well-suited for small fruit production. \t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/article>\n <\/div>\n\n
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\r\n\t\t\t\t\t\t\tFrom Sensor to Solenoid: Using LoRaWAN for Heat Stress Mitigation in Raspberries\t\t\t<\/a>\t\t<\/h3>\r\n\t\t\t\t\t\t
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Authors: Shafik Kiraga, Givemore Munashe Makonya, Mohammed A. Youssef, Troy Peters, Lisa Wasko DeVetter In Washington State and the Pacific Northwest, raspberry harvest typically falls within the hot summer months spanning from early June through early August. This is a period that increasingly overlaps with heatwaves that can damage the fruits. During these heatwaves, automated […]<\/p>\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t<\/article>

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\r\n\t\t\t\t\t\t\tBlackberry Diversity Trial: Preserving Pacific Northwest Production\t\t\t<\/a>\t\t<\/h3>\r\n\t\t\t\t\t\t
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Contributor: Katherine Anderson, WSU Undergraduate Intern In 2021 extreme weather resulted in a Heat Dome event occurring over the Pacific Northwest, during which the Oregon blackberry industry lost over 57% of their crop due to consecutive days where temperatures reached over 115 degrees Fahrenheit. The Willamette Valley in Oregon was one of those areas hardest […]<\/p>\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t<\/article>

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\r\n\t\t\t\t\t\t\tDrones and Heat: Harnessing UAVs for Heat Stress Research and Management\t\t\t<\/a>\t\t<\/h3>\r\n\t\t\t\t\t\t
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Contributor: Katherine Anderson, WSU Undergraduate Intern Acknowledgements: Special thanks to Dave Bryla, USDA-ARS Research Horticulturist, for contributing to this article. UAVs, otherwise known as unmanned, uncrewed, or unoccupied aerial vehicles, are perhaps best known for their aerial photography and videography capabilities. But they are also used in a variety of applications, including heat sensing and […]<\/p>\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t<\/article>

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\r\n\t\t\t\t\t\t\tHow Does Heat Impact Blueberry Pollination, And Why Does It Matter?\t\t\t<\/a>\t\t<\/h3>\r\n\t\t\t\t\t\t
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Author: Micah Evalt, WSU Graduate Student in DeVetter’s Small Fruit Horticulture Program at WSU NWREC    Anyone living in the Pacific Northwest (PNW) will surely remember the \u201cheat dome\u201d experienced in late June of 2021, a weather event that lasted for a few days, breaking daily high temperature records in Washington, Oregon, northern California, and several […]<\/p>\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t<\/article>

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\r\n\t\t\t\t\t\t\tPreserving the Pacific Northwest\u2019s Berry Big-footprint\t\t\t<\/a>\t\t<\/h3>\r\n\t\t\t\t\t\t
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Contributor: Katherine Anderson, WSU Undergraduate Intern Washington is known for its berries, including raspberries. The Evergreen State is responsible for a whopping 95% of processed red raspberry production[1]. The typically mild winters and summers of northwest Washington have historically been well-suited for small fruit production. However, as summers become hotter, production suffers. The heat dome […]<\/p>\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t<\/article>

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\r\n\t\t\t\t\t\t\tEl Ni\u00f1o & La Ni\u00f1a: How they impact risks of heat injury in the United States\t\t\t<\/a>\t\t<\/h3>\r\n\t\t\t\t\t\t
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Contributor: Katherine Anderson, WSU Undergraduate Intern  El Ni\u00f1o and La Ni\u00f1a are the warm and the cool phases of a natural climate pattern across the tropical Pacific known as the”El Ni\u00f1o-Southern Oscillation (ENSO). While we often hear about El Ni\u00f1o and La Ni\u00f1a, ENSO on its own is significant from a climate perspective given its […]<\/p>\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t<\/article>

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\r\n\t\t\t\t\t\t\tEnsuring Photosynthetic Health with Chlorophyll Fluorescence Measurements\t\t\t<\/a>\t\t<\/h3>\r\n\t\t\t\t\t\t
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Contributor: Givemore Munashe Makonya Plant photosynthetic health is an important part of producing high yielding and quality crops. A reliable approach to quantify photosynthetic health is by measuring chlorophyll fluorescence, which is the re-emission of red wavebands by chlorophyll molecules in plants. This occurs during photosynthesis and serves as a key indicator of plant vitality. […]<\/p>\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t<\/article>

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\r\n\t\t\t\t\t\t\tUnderstanding Heat Tolerance Variations in Caneberry Genotypes\t\t\t<\/a>\t\t<\/h3>\r\n\t\t\t\t\t\t
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Contributors: Wendy Hoashi-Erhardt and Michael Hardigan Breeding for heat tolerance is a crucial approach to beat the heat and overcome the challenges of high temperatures in agriculture. The heat tolerance of caneberry cultivars varies due to their genetics. In the Pacific Northwest, Michael Hardigan, a research geneticist at the United States Department of Agriculture in […]<\/p>\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t<\/article>

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\r\n\t\t\t\t\t\t\tIdentifying Plant Stress Using Photosynthesis Measurements\t\t\t<\/a>\t\t<\/h3>\r\n\t\t\t\t\t\t
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Contributor: Givemore Munashe Makonya    Measuring photosynthesis provides an insight into how plants respond to changing environmental conditions. But before delving into the specifics, let\u2019s clarify what is photosynthesis and what it truly entails. Essentially, photosynthesis is the conversion of light energy into chemical energy, producing sugars that fuel plant growth and make raspberries and blackberries […]<\/p>\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t<\/article>

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\r\n\t\t\t\t\t\t\tStaying Cool with Evaporative Cooling\t\t\t<\/a>\t\t<\/h3>\r\n\t\t\t\t\t\t
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Maintaining the optimal temperature for caneberries during the summer\u2019s hot weather is vital to minimize crop losses and ensure\u00a0high quality berries. One promising method to combat the heat is the implementation of evaporative cooling systems.\u00a0 The principle behind evaporative cooling is harnessing the power of water to absorb ambient heat. As water molecules absorb this […]<\/p>\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t<\/article>

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\r\n\t\t\t\t\t\t\tWhy is Heat an Issue for Caneberry Production?\t\t\t<\/a>\t\t<\/h3>\r\n\t\t\t\t\t\t
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Raspberry and blackberry consumption, collectively called \u201ccaneberries\u201d, is at an all-time high as consumers gain awareness of the health-promoting attributes of these tasty fruits. The Pacific Northwest\u2019s historically cooler summer climate used to provide an ideal environment for successful caneberry growth. However, the Pacific Northwest\u2019s weather has started to shift due to climate change and […]<\/p>\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t<\/article><\/div>\n