Pest Archives - Page 6 of 17 - West Coast Nut



Brown Marmorated Stink Bug in Hazelnuts

Hazelnut growers are no strangers to battling invasive and destructive species. Farmers famously battled back from the brink of disaster after Eastern Filbert Blight came to Oregon and decimated the industry in the 1980s and 1990s. Pests in all shapes and sizes have come to Willamette Valley for decades with a taste for hazelnuts. Contemporary growers are gearing up for a battle with an insect that made it ways to Oregon in the 2000s and now has a voracious appetite for hazelnuts—brown marmorated stink bug. Brown marmorated stink bug (BMSB) is part of the Pentatomidae family, a group of insects...

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Integrated Pest Management on a Budget

An integrated pest management program includes both preventative and corrective actions to keep insect pests from causing crop damage in tree nut orchards. When economic realities come up against an IPM strategy, costs and value have to be weighed. Drew Wolter, senior specialist in pest management at Almond Board of California, said the guiding principles of IPM look to uphold the three pillars of sustainability: environmental, social and economic. By nature, he said, economic viability is at the head of any sound IPM program, with prevention being the key step. Practices that do not just pay for themselves, but also...

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Preserve Beneficials in the Orchard

When we kill off the natural enemies of a pest, we inherit their work.” This quote, from Dr. Carl Huffaker of UC Berkeley in a 1976 New York Times article, is echoed by UCCE farm advisors and others who work in pest management. Preserving natural enemies, or beneficial insects in an orchard, can help reduce crop damage, save growers on pesticide application costs and is an integral part of an integrated pest management program, said Jhalendra Rijal, UCCE area IPM advisor for the northern San Joaquin Valley. “If beneficials are reliable, activity can be monitored and treatments can be based...

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Getting the Most Out Of Mating Disruption

Mating disruption for navel orangeworm (NOW) has been a commercial pest management option in California nut crops for several years as the 2021 growing season nears. With both continued use and expansion into acres new to mating disruption since 2014, many growers may be multiple seasons into their implementation. For others, 2021 may be the first year of incorporating NOW mating disruption technology into their overall nut crop IPM program. And some may still be considering whether to adopt this approach on some or all of their acreage. As our collective knowledge about the applied use of NOW mating disruption...

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Integrated Pest Management in Hazelnuts

Integrated pest management (IPM) in hazelnuts starts with monitoring and identifying pest pressures for significant pests, assessing the presence of natural predators in the orchard, and then choosing the most selective, least impactful approach to managing these pests based on economic thresholds.   Identify and Monitor Learn to identify pests that are causing damage (extension agents are a great source for help in identification.) Learn the life cycle of pests, when to disrupt the cycle and how best to do that. Once you have identified pests, such as the filbertworm moth, check for the telltale band of iridescent copper coloring...

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