Regional approach may get farmers to protect bees

New research looks at ways to incentivize almond growers to adopt bee-friendly practices, such as planting cover crops, adopting permanent pollinator habitat, and adopting best management practices for bees.

Almonds are big business in California, which grows 80% of the world’s crop with a value of $5.62 billion.

To get those almonds to grow, farmers need bees to pollinate their crop. And bee populations have been suffering sharp declines in recent years, part of a pattern of widespread loss of pollinator diversity and abundance.

The researchers found no silver bullet for adopting bee-friendly practices, but they learned that the location of almond groves played a central role in the adoption of bee-friendly practices, as well as concern for future pollination services.

Their findings suggest a regionally flexible conservation strategy focused on supporting honeybee colonies might have the highest likelihood of grower participation and adoption.

The paper appears in Frontiers in Sustainable Food Systems.

Coauthor Lauren Ponisio, an assistant biology professor in the Institute of Ecology and Evolution in the University of Oregon biology department, studies bee conservation and community ecology. She grew up in Fresno “in the middle of all these almonds,” she says, and learned at an early age how important bees were to agriculture, notably when a frost killed flowers and bees.

“We’ve been working on trying to understand how we can restore populations of wild bees in agriculture,” she says. “There’s a lot of science on how to do that and its effectiveness, but not much uptake by growers.”

Ponisio and coauthor Jennie Durant, a postdoctoral fellow at the University of Oregon with the National Institute of Food and Agriculture when they conducted the study who now is a science and technology policy fellow with the American Association for the Advancement of Science, working for the US Department of Agriculture, conducted an online survey of 329 California almond growers, both hired farm managers and owner-operators.

The survey looked at the adoption of three types of bee-friendly practices: the adoption of cover crops, the adoption of permanent pollinator habitat, and the adoption of the California Almond Board’s Honey Bee Best Management Practices, which generally focus on pesticide reduction.

The results indicated that growers are more interested in growing cover crops than installing permanent pollinator habitat in their orchards. Cover crops may be more popular because they are perceived to require less water, attention, installation, and labor and maintenance costs than permanent pollinator habitat.

They found growers’ main incentive for adopting bee-friendly practices was to strengthen their honeybee colonies, followed by decreasing their rental fees for managed honeybee colonies. They were less concerned with native bee populations.

“We definitely saw growers are most interested in adopting bee-friendly practices to strengthen honeybee pollination during bloom, to increase their yield,” Durant says.

Where the growers are located—whether the drier southern regions of California, or the rainier north—is the biggest indicator of whether and how they adopt these practices, she says. For instance, growers in the Sacramento Valley, where there is higher rainfall, were more likely to plant cover crops and permanent pollinator habitat than their counterparts to the south.

“To me it suggests a regionally sensitive conservation approach might make the most sense,” rather than a strict statewide program, Durant says.

Source: University of Oregon

Original Study

DOI: 10.3389/fsufs.2021.628802

by U. Oregon

Published on 2021-10-05

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Originally posted as: Regional approach may get farmers to protect bees - Futurity, made available by Futurity under the terms of the Creative Commons Attribution 4.0 International license.


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